US2964171A - Strip connectors - Google Patents
Strip connectors Download PDFInfo
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- US2964171A US2964171A US709098A US70909858A US2964171A US 2964171 A US2964171 A US 2964171A US 709098 A US709098 A US 709098A US 70909858 A US70909858 A US 70909858A US 2964171 A US2964171 A US 2964171A
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- Prior art keywords
- strip
- sleeves
- insulating sleeves
- insulating
- connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/058—Crimping mandrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D73/00—Packages comprising articles attached to cards, sheets or webs
- B65D73/02—Articles, e.g. small electrical components, attached to webs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S206/00—Special receptacle or package
- Y10S206/82—Separable, striplike plural articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12188—All metal or with adjacent metals having marginal feature for indexing or weakened portion for severing
- Y10T428/12194—For severing perpendicular to longitudinal dimension
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12229—Intermediate article [e.g., blank, etc.]
- Y10T428/12264—Intermediate article [e.g., blank, etc.] having outward flange, gripping means or interlocking feature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12326—All metal or with adjacent metals with provision for limited relative movement between components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12361—All metal or with adjacent metals having aperture or cut
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
Definitions
- the invention relates to insulated electric terminal connectors of the character disclosed, for example, in Patent 2,769,965, issued to John Nelson Frey on November 6, 1956, and more particularly to a linear assembly of a plurality of such terminal connectors wherein the insulating sleeves thereof are integrally connected in parallel, spaced relation.
- the invention resides in a linear assembly of a plurality of equally spaced, individually complete insulated terminal connectors in flexible strip form and of a size adapted for use with 22 to 18 wire size conductors, for example, wherein the terminal connectors are interconnected by a narrow web of plastic insulating material integrally connecting each adjacent pair of the insulating sleeves thereof at diametrically opposite points on one peripheral edge thereof.
- Non-insulated terminal connectors are also known which are produced in strip form, with the connectors disposed in end-to-end tandem relation, for feeding to a crimping and severing apparatus, as disclosed in Patent 2,494,137, issued January 10, 1950, to R. Martines.
- Strips of such interconnected terminal connectors are usually cadmium-plated or tinned, after the production thereof, to preclude corrosion.
- Such terminal connectors are also objectionable by reason of the fact that, in the severing of each terminal connector from the strip, the plated or tinned coating is mutilated at the points of severance thereon, whereby the connectors are rendered subject to corrosion.
- Another object of the invention is to provide a linear assembly of individually complete, insulated terminal connectors in flexible strip form, whereby a non-corrosive metallic coating plated on the conductive elements thereof is not mutilated in the severing of each individual terminal connector from the strip.
- a further object of the invention is to provide a plurality of open-ended insulating sleeves in a form in which the insulating sleeves can be handled manually as a group and successively separated during such handling thereof.
- Another object of the invention is to provide a plurality of open-ended insulating sleeves as interconnected, equally spaced elements of a one-piece molded plastic strip adapted to be fed to a suitable machine for successively inserting and securing conductive elements therein to form individually complete insulated terminal connectors, successively inserting and securing a wire conductor in each terminal connector, and successively severing each terminal connector from the strip.
- a further object of the invention is to provide a linear assembly of interconnected, insulating sleeves in the form of a molded, flexible plastic strip wherein the opposite free ends of each strip are provided with complementary ball-and-socket-forming connections, whereby a plurality of such strips may be detachably connected in end to end relation.
- Fig. l is a fragmentary view of a molded plastic grid in plan and comprising a series of equally spaced, interconnected, open-ended insulating sleeves illustrating the manner in which a plurality of linear strips of such insulating sleeves are produced.
- Fig. 2 is a fragmentary plan View of a strip of insulating sleeves as severed from a molded grid thereof, shown in Fig. 1, and illustrating a new article of manufacture in accordance with the invention
- Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2, showing one of the molded insulating sleeves in axial section;
- Fig. 4 is a fragmentary sectional view of a strip ofinterconnected insulating sleeves illustrating the successive insertion into each insulating sleeve in the strip of each of a pair of conductive sleeve elements, and the securing of one of said sleeve elements within the other of said elements;
- Fig. 5 is a schematic View illustrating the manner in which a strip of insulated terminal connectors, as assembled in Fig. 4, may be fed step-by-step in a crimping and severing apparatus to crimp each terminal connector on the stripped end portion of an insulated wire conductor, through its insulating sleeve, and sever the connecting plastic web therefrom while severing each insulated terminal connector from the strip;
- Fig. 6 is a plan view of an insulated terminal connector as completed, either manually or in automatic feed mechanism in accordance with the invention
- Fig. 7 is a sectional view of the completed terminal connector taken on the line 7-7 of Fig. 6;
- Fig. 8 is a perspective view of a portion of a linear assembly of interconnected insulated terminal connectors showing a preferred form of the invention wherein the connecting webs between each pair of the insulating sleeves are of uniform cross-section throughout with the largest transverse dimension thereof disposed in parallelism with the axes of the connected insulating sleeves.
- Fig. 1 is intended to exemplify, in plan, a rectangular grid 10, molded of a synthetic polymeric amide, commonly known as nylon, and comprising a plurality of parallel rows of equally spaced, openended sleeves 12, each having a common wall thickness and opposite end portions of different internal and external diameters forming an inclined annular shoulder 14 therebetween mid-way of the length thereof, as in Fig. 3, the axes of the sleeves l2being disposed in equally spaced, parallel relation with flat integral webs 16 disposed normal thereto and connecting each adjacent pair of the sleeves 12 at diametrically opposite points on the largest peripheral edge 18 of each sleeve.
- a synthetic polymeric amide commonly known as nylon
- the molded grid 10, exemplified in Fig. 1 is formed in a size sufficient to provide forty-eight sleeves, for example, twenty four on each side of the medial line ab, and the parallel columns of sleeves subsequently severed therefrom at a plurality of points, generally indicated at 20, to provide flexible strips 22 of the molded sleeves 12, as exemplified in Fig. 2.
- the grid in Fig. 1 may include a free end web portion 16b, integral with the last sleeve 12 at each end of. each column or row thereof, defining complementary ball-and-socket connecting means 24, or the like, for example, whereby a plurality of strips 22 may be detachably connected in end-to-end relation for a purpose hereinafter described.
- each insulating sleeve 12 in a strip 22 thereof is subsequently provided successively, either mannally or by means of an automatic intermittent feed mechanism, with a frictionally fitted liner sleeve 26 of thin conductive metal having a corresponding inclined, annular shoulder 28, intermediate its ends, and a length slightly less than the length of the insulating sleeves 12.
- the wire barrel portion 30, of an apertured tongue 32 having its free annular end internally chamfered as at 34, is inserted in the smallest end opening of the liner sleeve 26, previously fitted in an insulating sleeve 12, whereupon the intruded chamfered end of the wire barrel 30 isflared outwardly against the inclined shoulder 28 of the liner sleeve 26, as by means of a suitable upsetting punch, a exemplified at 36, whereby the wire barrel 30 is secured within the thin liner sleeve 26 and the liner sleeve within its correlated plastic sleeve 12, against relative movement.
- the web 16 connecting each adjacent pair of insulating sleeves 12 in a strip 22 thereof is preferably formed with its dimension of greatest width disposed in parallelism with the axes of the sleeves 12, whereby to facilitate convoluting suchstrips into coil form if desired.
- a combined web-severing and wire barrel crimping tool A includes an anvil B provided with a fixed jaw C and a relatively movable jaw D, with the parts so related that, with an insulated terminal connector 38, in a strip 22 thereof, located therebetween and the stripped end of an insulated wire conductor 40, intruded into its wire barrel portion 30, squeeze pressure may be subsequently applied thereon through its insulating sleeve 12, to deform one end of its liner sleeve 26 into crimped engagement with the insulation covering adjacent the in truded stripped end portion of the wire conductor 40, and squeeze pressure applied, at the same time, through the opposite, end portion of the insulating sleeve 12, and its liner sleeve 26, to deform the wire barrel portion 30 into crimped engagement with the stripped end portion of the insulated wire conductor 40, intruded therein, as more fully disclosed in the herein-identified Frey patent.
- the movable jaw.D of the tool A includes an integralextension E, projecting therefrom in a direction lengthwise of the strip 22 of insulated terminal connectors 38, for severing the webs. 16, one after the other frornithe strip 22.
- the lower edge of the aforesaid extension E isof invertedW- configuration to providetwo knife-like cutting, edges F and G, spaced apart a distance exactly equal to the length of the web 16 between each adjacent pair of insulated terminal connectors 38 in the strip thereof.
- the left cutting edge F is spaced from a stop wall H of the tool A, a distance equal to the largest outer diameter of the insulating sleeves 12 of the terminal connectors 38.
- the cutting edges F and G have a width, considered transversely of the drawing sheet, greater than the width of the opposite ends of the web 16 to be severed from each adjacent pair of the insulating sleeves 12, and, in general, it is the intent to sever the webs 16, close to the periphery of the sleeves 12, to substantially preclude residual burrs or like projections thereon.
- each successively advanced insulated terminal connector 38 will be crimped and severed from the balance of the strip, after the insertion of the stripped end portion of an insulated wire conductor 40 therein, and that some suitable stripfeeding device, such as a star-wheel or a spring-loaded pusher P, for example, may be utilized to advance each strip 22 of connectors 38 with a step-by-step' action to bring the next connector in the strip against the stop wall H and into position to be crimped and then severed therefrom.
- some suitable stripfeeding device such as a star-wheel or a spring-loaded pusher P, for example
- a molded strip 22 of insulating sleeves 12, as above described, may also be formed in a mold adapted for the production of a plurality of separate individually complete strips 22 of insulating sleeves, with or without a complementary connecting means at the respective ends thereof, wherein the webs l6, integrally connecting the larger open ends of each adjacent pair of the insulating sleeves 12 at diametrically opposite points on the peripheral edge thereof, have a uniform cross section of small area throughout their entire length and with the largest transverse dimension of the connecting webs 16 disposed in parallelism with the axes of the insulating sleeves12,
- the insulating sleeves 12 are each provided with a thin liner sleeve 26 of ductile metal and a wire barrel 30 of ductile metal, including an apertured tongue 32 extending from the smaller end of the liner sleeve, the strips 22 being marketed as shown and adapted to be fed to a crimping and severing mechanism or each insulated terminal connector 38 manually severed from a strip 22 thereof, as needed.
- a linear assembly of insulated terminal connectors in flexible strip form it is possible to manipulate such connectors more readily, especially when it is realized the connectors are usually of such small size as to be difiicult to hold between the fingers.
- the insulating sleeves can be more readily equipped with the conductive metal elements than is the case when separate sleeves must be handled to insert such elements therein to produce the insulated terminal connectors, as described.
- each sleeve will occupy the same position as every other sleeve when brought into position to be operated uponin a crimping and/or severing apparatus.
- a linear assembly of insulated electric terminal connectors in flexible strip form comprising a plurality of open-ended, plastic insulating sleeves havingopposite end portions of different internal and external diameter definingan inclined an? nular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with Webs integral therewith extending in right angular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion co-extensive therewith having a free annular end, the wire barrel portion of each of said elements being fitted in the smaller end portion of each of said insulating sleeves with its free end flared outwardly against the inclined shoulder within its correlated insulating sleeve to prevent relative movement therebetween, the opposite free ends of said flexible strip each including an integral web portion provided respectively with a complementary ball-and-socket forming joint for
- a linear assembly of insulated electric terminal connectors in flexible strip form comprising a plurality of open-ended, plastic insulating sleeves having opposite end portions of dilferent internal and external diameter defining an inclined annular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with narrow webs integral therewith extending in rightangular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion coextensive therewith having a free annular end, and a thin metal liner sleeve with opposite end portions of different external and internal diameter defining an inclined annular shoulder therebetween, said liner sleeves being fitted within said insulating sleeves and said wire barrel portions extended into the smaller end portions of said liner sleeves with their free ends flared outwardly against the inclined shoulders within said liner sleeves to prevent relative movement between said liner sleeves, wire barrel
- a linear assembly of insulated electric terminal connectors in flexible strip form comprising a plurality of open-ended plastic insulating sleeves having opposite end portions of different internal and external diameter defining an inclined annular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with webs integral therewith extending in right angular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion coextensive therewith having a free annular end, the wire barrel portion of each of said elements being fitted in the smaller end portion of each of said insulating sleeves with its free end flared outwardly against the inclined shoulder within its correlated insulating sleeve to prevent relative movement therebetween, the opposite free ends of said flexible strip each including an integral web portion provided with complementary joints for connecting a plurality of said flexible strips in end-to-end relation.
Description
Dec. 13, 1960 R. A. CHADWICK 2,964,171
STRIP CONNECTORS Filed Jan. 15, 1958 INVENTOR. 19035197 ,4Z V/A/ 0740/7/06 STRIP CONNECTORS Robert Alvin Chadwick, Glendale, Calif., assignor to The Thomas & Betts Co., Elizabeth, N..'., a corporation of New Jersey Filed Jan. 15, 1958, Ser. No. 709,098
3 Claims. (Cl. 206-56) This application is a continuation-in-part of my copending application Serial No. 324,359, filed December 5, 1952.
The invention relates to insulated electric terminal connectors of the character disclosed, for example, in Patent 2,769,965, issued to John Nelson Frey on November 6, 1956, and more particularly to a linear assembly of a plurality of such terminal connectors wherein the insulating sleeves thereof are integrally connected in parallel, spaced relation.
More specifically, the invention resides in a linear assembly of a plurality of equally spaced, individually complete insulated terminal connectors in flexible strip form and of a size adapted for use with 22 to 18 wire size conductors, for example, wherein the terminal connectors are interconnected by a narrow web of plastic insulating material integrally connecting each adjacent pair of the insulating sleeves thereof at diametrically opposite points on one peripheral edge thereof.
Similar prior art terminal connectors, as utilized separately heretofore, involved certain disadvantages in that in the attachment of one of such terminal connectors to a wire conductor required considerable time by reason of the small size thereof and the difliculty in manipulating the same during such operation, more especially when a plurality of such connectors had to be secured one to each conductor end portion in a large bundle thereof, as in an ignition or other electric circuit harness utilized in large aircraft assemblies, for example. Moreover, the feeding of such individual terminal connectors from a hopper charged with a large number thereof involved complicated apparatus in which the feed thereof from the hopper and from station to station, was not practical and/or efficient by reason of the configuration of the terminal connectors.
Non-insulated terminal connectors are also known which are produced in strip form, with the connectors disposed in end-to-end tandem relation, for feeding to a crimping and severing apparatus, as disclosed in Patent 2,494,137, issued January 10, 1950, to R. Martines. Strips of such interconnected terminal connectors are usually cadmium-plated or tinned, after the production thereof, to preclude corrosion. Thus, such terminal connectors are also objectionable by reason of the fact that, in the severing of each terminal connector from the strip, the plated or tinned coating is mutilated at the points of severance thereon, whereby the connectors are rendered subject to corrosion.
Accordingly, it is an object of the invention to provide a linear assembly of equally spaced, insulated terminal connectors in flexible strip form which may be handled manually, fed to an automatic crimping and severing mechanism or convoluted in coil formation for future sale or use.
Another object of the invention is to provide a linear assembly of individually complete, insulated terminal connectors in flexible strip form, whereby a non-corrosive metallic coating plated on the conductive elements thereof is not mutilated in the severing of each individual terminal connector from the strip.
A further object of the invention is to provide a plurality of open-ended insulating sleeves in a form in which the insulating sleeves can be handled manually as a group and successively separated during such handling thereof.
Another object of the invention is to provide a plurality of open-ended insulating sleeves as interconnected, equally spaced elements of a one-piece molded plastic strip adapted to be fed to a suitable machine for successively inserting and securing conductive elements therein to form individually complete insulated terminal connectors, successively inserting and securing a wire conductor in each terminal connector, and successively severing each terminal connector from the strip.
A further object of the invention is to provide a linear assembly of interconnected, insulating sleeves in the form of a molded, flexible plastic strip wherein the opposite free ends of each strip are provided with complementary ball-and-socket-forming connections, whereby a plurality of such strips may be detachably connected in end to end relation.
With the above and other objects in view, the invention resides in the novel construction, combination and arrangement of parts, the novel features of which are set forth with particularity in the appended claims, the invention itself, however, both as to its organization and method of assembly, together with additional objects and advantages thereof, being best understood from the following description of a specific embodiment thereof, when taken in connection with the accompanying drawing, in which:
Fig. l is a fragmentary view of a molded plastic grid in plan and comprising a series of equally spaced, interconnected, open-ended insulating sleeves illustrating the manner in which a plurality of linear strips of such insulating sleeves are produced.
Fig. 2 is a fragmentary plan View of a strip of insulating sleeves as severed from a molded grid thereof, shown in Fig. 1, and illustrating a new article of manufacture in accordance with the invention;
Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2, showing one of the molded insulating sleeves in axial section;
Fig. 4 is a fragmentary sectional view of a strip ofinterconnected insulating sleeves illustrating the successive insertion into each insulating sleeve in the strip of each of a pair of conductive sleeve elements, and the securing of one of said sleeve elements within the other of said elements;
Fig. 5 is a schematic View illustrating the manner in which a strip of insulated terminal connectors, as assembled in Fig. 4, may be fed step-by-step in a crimping and severing apparatus to crimp each terminal connector on the stripped end portion of an insulated wire conductor, through its insulating sleeve, and sever the connecting plastic web therefrom while severing each insulated terminal connector from the strip;
Fig. 6 is a plan view of an insulated terminal connector as completed, either manually or in automatic feed mechanism in accordance with the invention;
Fig. 7 is a sectional view of the completed terminal connector taken on the line 7-7 of Fig. 6; and
Fig. 8 is a perspective view of a portion of a linear assembly of interconnected insulated terminal connectors showing a preferred form of the invention wherein the connecting webs between each pair of the insulating sleeves are of uniform cross-section throughout with the largest transverse dimension thereof disposed in parallelism with the axes of the connected insulating sleeves.
Referring to the drawing, Fig. 1 is intended to exemplify, in plan, a rectangular grid 10, molded of a synthetic polymeric amide, commonly known as nylon, and comprising a plurality of parallel rows of equally spaced, openended sleeves 12, each having a common wall thickness and opposite end portions of different internal and external diameters forming an inclined annular shoulder 14 therebetween mid-way of the length thereof, as in Fig. 3, the axes of the sleeves l2being disposed in equally spaced, parallel relation with flat integral webs 16 disposed normal thereto and connecting each adjacent pair of the sleeves 12 at diametrically opposite points on the largest peripheral edge 18 of each sleeve.
The molded grid 10, exemplified in Fig. 1 is formed in a size sufficient to provide forty-eight sleeves, for example, twenty four on each side of the medial line ab, and the parallel columns of sleeves subsequently severed therefrom at a plurality of points, generally indicated at 20, to provide flexible strips 22 of the molded sleeves 12, as exemplified in Fig. 2. Preferably, although not necessarily, the grid in Fig. 1 may include a free end web portion 16b, integral with the last sleeve 12 at each end of. each column or row thereof, defining complementary ball-and-socket connecting means 24, or the like, for example, whereby a plurality of strips 22 may be detachably connected in end-to-end relation for a purpose hereinafter described.
Further in accordance with the invention and as best shown in Fig. 4, each insulating sleeve 12 in a strip 22 thereof is subsequently provided successively, either mannally or by means of an automatic intermittent feed mechanism, with a frictionally fitted liner sleeve 26 of thin conductive metal having a corresponding inclined, annular shoulder 28, intermediate its ends, and a length slightly less than the length of the insulating sleeves 12. Thereafter, the wire barrel portion 30, of an apertured tongue 32, having its free annular end internally chamfered as at 34, is inserted in the smallest end opening of the liner sleeve 26, previously fitted in an insulating sleeve 12, whereupon the intruded chamfered end of the wire barrel 30 isflared outwardly against the inclined shoulder 28 of the liner sleeve 26, as by means of a suitable upsetting punch, a exemplified at 36, whereby the wire barrel 30 is secured within the thin liner sleeve 26 and the liner sleeve within its correlated plastic sleeve 12, against relative movement.
It is to be observed that the web 16 connecting each adjacent pair of insulating sleeves 12 in a strip 22 thereof is preferably formed with its dimension of greatest width disposed in parallelism with the axes of the sleeves 12, whereby to facilitate convoluting suchstrips into coil form if desired.
Further in accordance with the invention and as shown in Fig. 5, a combined web-severing and wire barrel crimping tool A includes an anvil B provided with a fixed jaw C and a relatively movable jaw D, with the parts so related that, with an insulated terminal connector 38, in a strip 22 thereof, located therebetween and the stripped end of an insulated wire conductor 40, intruded into its wire barrel portion 30, squeeze pressure may be subsequently applied thereon through its insulating sleeve 12, to deform one end of its liner sleeve 26 into crimped engagement with the insulation covering adjacent the in truded stripped end portion of the wire conductor 40, and squeeze pressure applied, at the same time, through the opposite, end portion of the insulating sleeve 12, and its liner sleeve 26, to deform the wire barrel portion 30 into crimped engagement with the stripped end portion of the insulated wire conductor 40, intruded therein, as more fully disclosed in the herein-identified Frey patent.
Further in accordance with the invention, the movable jaw.D of the tool A, includes an integralextension E, projecting therefrom in a direction lengthwise of the strip 22 of insulated terminal connectors 38, for severing the webs. 16, one after the other frornithe strip 22. The lower edge of the aforesaid extension E isof invertedW- configuration to providetwo knife-like cutting, edges F and G, spaced apart a distance exactly equal to the length of the web 16 between each adjacent pair of insulated terminal connectors 38 in the strip thereof. The left cutting edge F is spaced from a stop wall H of the tool A, a distance equal to the largest outer diameter of the insulating sleeves 12 of the terminal connectors 38. The cutting edges F and G, as aforesaid, have a width, considered transversely of the drawing sheet, greater than the width of the opposite ends of the web 16 to be severed from each adjacent pair of the insulating sleeves 12, and, in general, it is the intent to sever the webs 16, close to the periphery of the sleeves 12, to substantially preclude residual burrs or like projections thereon.
In the schematic arrangement shown in Fig. 5 it is intended, upon each actuation of the tool A, that each successively advanced insulated terminal connector 38 will be crimped and severed from the balance of the strip, after the insertion of the stripped end portion of an insulated wire conductor 40 therein, and that some suitable stripfeeding device, such as a star-wheel or a spring-loaded pusher P, for example, may be utilized to advance each strip 22 of connectors 38 with a step-by-step' action to bring the next connector in the strip against the stop wall H and into position to be crimped and then severed therefrom.
Further in accordance with the invention and as illustrated in Fig. 8, a molded strip 22 of insulating sleeves 12, as above described, may also be formed in a mold adapted for the production of a plurality of separate individually complete strips 22 of insulating sleeves, with or without a complementary connecting means at the respective ends thereof, wherein the webs l6, integrally connecting the larger open ends of each adjacent pair of the insulating sleeves 12 at diametrically opposite points on the peripheral edge thereof, have a uniform cross section of small area throughout their entire length and with the largest transverse dimension of the connecting webs 16 disposed in parallelism with the axes of the insulating sleeves12,
As previously described, the insulating sleeves 12 are each provided with a thin liner sleeve 26 of ductile metal and a wire barrel 30 of ductile metal, including an apertured tongue 32 extending from the smaller end of the liner sleeve, the strips 22 being marketed as shown and adapted to be fed to a crimping and severing mechanism or each insulated terminal connector 38 manually severed from a strip 22 thereof, as needed. Thus, by means of a linear assembly of insulated terminal connectors in flexible strip form, it is possible to manipulate such connectors more readily, especially when it is realized the connectors are usually of such small size as to be difiicult to hold between the fingers. Moreover, in strip form, the insulating sleeves can be more readily equipped with the conductive metal elements than is the case when separate sleeves must be handled to insert such elements therein to produce the insulated terminal connectors, as described.
Inasmuch as the insulating sleeves 12 are identical, one with the other, and all exactly and equidistantly spaced apart, each sleeve will occupy the same position as every other sleeve when brought into position to be operated uponin a crimping and/or severing apparatus.
While the invention has been illustrated and described with respect to a preferred embodiment thereof, it is to be expressly understood that various changes and modifications may be made therein without departing from the inventive concept underlying the same. Therefore, the invention is not to be limited except as is necessitated by the prior art and the scope of the appended claims.
I claim:
1. As a new article of manufacture, a linear assembly of insulated electric terminal connectors in flexible strip form, comprising a plurality of open-ended, plastic insulating sleeves havingopposite end portions of different internal and external diameter definingan inclined an? nular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with Webs integral therewith extending in right angular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion co-extensive therewith having a free annular end, the wire barrel portion of each of said elements being fitted in the smaller end portion of each of said insulating sleeves with its free end flared outwardly against the inclined shoulder within its correlated insulating sleeve to prevent relative movement therebetween, the opposite free ends of said flexible strip each including an integral web portion provided respectively with a complementary ball-and-socket forming joint for connecting a plurality of said flexible strips in end-to-end relation.
2. As a new article of manufacture, a linear assembly of insulated electric terminal connectors in flexible strip form comprising a plurality of open-ended, plastic insulating sleeves having opposite end portions of dilferent internal and external diameter defining an inclined annular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with narrow webs integral therewith extending in rightangular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion coextensive therewith having a free annular end, and a thin metal liner sleeve with opposite end portions of different external and internal diameter defining an inclined annular shoulder therebetween, said liner sleeves being fitted within said insulating sleeves and said wire barrel portions extended into the smaller end portions of said liner sleeves with their free ends flared outwardly against the inclined shoulders within said liner sleeves to prevent relative movement between said liner sleeves, wire barrel portions and insulating sleeves, the opposite free ends of said flexible strip each including an integral web portion provided respectively with complementary means for connecting a plurality of said flexible strips in end-to-end relation.
3. As a new article of manufacture, a linear assembly of insulated electric terminal connectors in flexible strip form, comprising a plurality of open-ended plastic insulating sleeves having opposite end portions of different internal and external diameter defining an inclined annular shoulder therebetween, said insulating sleeves having their axes disposed in parallel, spaced-apart relation with webs integral therewith extending in right angular alignment and connecting the larger end portion of each adjacent pair of insulating sleeves at diametrically opposite points on the peripheral edge thereof, a corresponding number of metal connector elements each comprising an apertured tongue portion and a wire barrel portion coextensive therewith having a free annular end, the wire barrel portion of each of said elements being fitted in the smaller end portion of each of said insulating sleeves with its free end flared outwardly against the inclined shoulder within its correlated insulating sleeve to prevent relative movement therebetween, the opposite free ends of said flexible strip each including an integral web portion provided with complementary joints for connecting a plurality of said flexible strips in end-to-end relation.
References Cited in the file of this patent UNITED STATES PATENTS 1,161,192 Cook Nov. 23, 1915 2,396,725 Thomas Mar. 19, 1946 2,510,091 Dofsen June 6, 1950 2,610,390 Locke Sept. 16, 1952 2,616,559 Hyland Nov. 4, 1952 2,670,530 Regnier Mar. 2, 1954 2,769,965 Frey Nov. 6, 1956 2,815,124 Pellier Dec. 3, 1957 2,819,792 Margulis Ian. 14, 1958 2,830,698 Coda et a1. Apr. 15, 1958 FOREIGN PATENTS 582,666 Great Britain Nov. 25, 1946
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US709098A US2964171A (en) | 1958-01-15 | 1958-01-15 | Strip connectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US709098A US2964171A (en) | 1958-01-15 | 1958-01-15 | Strip connectors |
Publications (1)
Publication Number | Publication Date |
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US2964171A true US2964171A (en) | 1960-12-13 |
Family
ID=24848473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US709098A Expired - Lifetime US2964171A (en) | 1958-01-15 | 1958-01-15 | Strip connectors |
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US (1) | US2964171A (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US3136416A (en) * | 1961-11-22 | 1964-06-09 | Dapol Plastics Inc | Package for plastic articles |
US3217872A (en) * | 1958-11-24 | 1965-11-16 | Burndy Corp | Connector carry block and connectors |
US3220807A (en) * | 1962-02-14 | 1965-11-30 | Jr Alfred W Schmitz | Electrical terminals |
US3241658A (en) * | 1964-11-19 | 1966-03-22 | Bechik Products Inc | Plastic handles in bundle form |
US3397382A (en) * | 1967-07-13 | 1968-08-13 | Quick Cable Corp | Electrical termination |
US3428169A (en) * | 1963-09-17 | 1969-02-18 | Fur Montage Technik Anstalt | Fastener and package therefor |
US3431548A (en) * | 1964-02-27 | 1969-03-04 | Amp Inc | Covering for a connecting member |
US3632032A (en) * | 1968-08-05 | 1972-01-04 | Pierre Termet | Apparatus using the energy produced by the explosion of a machine gun cartridge (shell) |
US3634817A (en) * | 1970-05-15 | 1972-01-11 | Amp Inc | Electrical connector assembly and method of making same |
US3690452A (en) * | 1970-05-25 | 1972-09-12 | Leslie A Ungar | Applicator assembly |
US3743087A (en) * | 1968-07-03 | 1973-07-03 | Amp Inc | Cold formed plastic connector housing |
US3774141A (en) * | 1971-11-24 | 1973-11-20 | Vaco Products Co | Terminal connector and insulating sleeve therefor |
US3774756A (en) * | 1969-10-22 | 1973-11-27 | Textron Inc | Molded plastic snap fastener for strip of components therefore |
US3938657A (en) * | 1972-11-16 | 1976-02-17 | David Melvin J | Blind rivet assembly |
US4149768A (en) * | 1977-06-15 | 1979-04-17 | Amp Incorporated | Composite strip of thermoplastic articles and method of manufacturing same |
US4178055A (en) * | 1975-05-12 | 1979-12-11 | Amp Incorporated | Connecting device for connecting pairs of wires |
US4193658A (en) * | 1978-04-27 | 1980-03-18 | Amp Incorporated | Modular telephone plug |
US4220384A (en) * | 1978-10-20 | 1980-09-02 | Amp Incorporated | Loose piece terminal mounting assembly |
DE2941770A1 (en) * | 1979-10-16 | 1981-04-30 | C.A. Weidmüller KG, 4930 Detmold | METHOD AND DEVICE FOR PRODUCING CONTACTS WITH CRIMP CONNECTION |
DE3119020A1 (en) | 1980-08-09 | 1982-04-29 | Nichifu Terminal Industries Co., Ltd., Osaka | ONE-PIECE DESIGNED, ELECTRICALLY ISOLATED CONNECTING TERMINALS ON A CONTINUOUS OR CONTINUOUS BAND |
US4583640A (en) * | 1983-06-29 | 1986-04-22 | Molex Incorporated | Packaging arrangement for electrical connectors |
US4767353A (en) * | 1983-08-29 | 1988-08-30 | Amp Incorporated | Two part connector housings in strip form |
US4813893A (en) * | 1988-05-17 | 1989-03-21 | Amp Incorporated | Electrical terminal and method of assembly |
DE3153235C2 (en) * | 1980-08-09 | 1989-09-21 | Nichifu Terminal | Continuous strip production of electrical connectors - has individual connectors joined by bridge section and produced in forming operation |
US4969845A (en) * | 1988-03-29 | 1990-11-13 | Legrand | Electric terminal connector |
US5017161A (en) * | 1988-06-21 | 1991-05-21 | Legrand | Electric terminal connector |
US5148596A (en) * | 1989-09-19 | 1992-09-22 | Autosplice, Inc. | Continuous molded electronic component assembly |
DE4128329A1 (en) * | 1991-08-27 | 1993-03-04 | Lumberg Karl Gmbh & Co | Production of mechanically coupled chain of multi-contact connectors - has connector housings formed such that socket of one engages plug of adjacent stage |
US5428890A (en) * | 1992-02-26 | 1995-07-04 | Zahn; Irvin | Method of making continuous molded electrical connectors and making connections thereto |
US5758589A (en) * | 1994-10-01 | 1998-06-02 | A. Raymond & Cie. | Plastic closure elements for garments, method and application |
US5934465A (en) * | 1996-10-22 | 1999-08-10 | Thomas & Betts Corporation | Cable tie bandoliers for use with automatic tools |
US5967316A (en) * | 1997-10-22 | 1999-10-19 | Thomas & Betts International, Inc. | Cable tie bandoliers for use with automatic tools |
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Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3217872A (en) * | 1958-11-24 | 1965-11-16 | Burndy Corp | Connector carry block and connectors |
US3136416A (en) * | 1961-11-22 | 1964-06-09 | Dapol Plastics Inc | Package for plastic articles |
US3220807A (en) * | 1962-02-14 | 1965-11-30 | Jr Alfred W Schmitz | Electrical terminals |
US3428169A (en) * | 1963-09-17 | 1969-02-18 | Fur Montage Technik Anstalt | Fastener and package therefor |
US3431548A (en) * | 1964-02-27 | 1969-03-04 | Amp Inc | Covering for a connecting member |
US3241658A (en) * | 1964-11-19 | 1966-03-22 | Bechik Products Inc | Plastic handles in bundle form |
US3397382A (en) * | 1967-07-13 | 1968-08-13 | Quick Cable Corp | Electrical termination |
US3743087A (en) * | 1968-07-03 | 1973-07-03 | Amp Inc | Cold formed plastic connector housing |
US3632032A (en) * | 1968-08-05 | 1972-01-04 | Pierre Termet | Apparatus using the energy produced by the explosion of a machine gun cartridge (shell) |
US3774756A (en) * | 1969-10-22 | 1973-11-27 | Textron Inc | Molded plastic snap fastener for strip of components therefore |
US3634817A (en) * | 1970-05-15 | 1972-01-11 | Amp Inc | Electrical connector assembly and method of making same |
US3690452A (en) * | 1970-05-25 | 1972-09-12 | Leslie A Ungar | Applicator assembly |
US3774141A (en) * | 1971-11-24 | 1973-11-20 | Vaco Products Co | Terminal connector and insulating sleeve therefor |
US3938657A (en) * | 1972-11-16 | 1976-02-17 | David Melvin J | Blind rivet assembly |
US4178055A (en) * | 1975-05-12 | 1979-12-11 | Amp Incorporated | Connecting device for connecting pairs of wires |
US4149768A (en) * | 1977-06-15 | 1979-04-17 | Amp Incorporated | Composite strip of thermoplastic articles and method of manufacturing same |
US4193658A (en) * | 1978-04-27 | 1980-03-18 | Amp Incorporated | Modular telephone plug |
US4220384A (en) * | 1978-10-20 | 1980-09-02 | Amp Incorporated | Loose piece terminal mounting assembly |
DE2941770A1 (en) * | 1979-10-16 | 1981-04-30 | C.A. Weidmüller KG, 4930 Detmold | METHOD AND DEVICE FOR PRODUCING CONTACTS WITH CRIMP CONNECTION |
DE3153235C2 (en) * | 1980-08-09 | 1989-09-21 | Nichifu Terminal | Continuous strip production of electrical connectors - has individual connectors joined by bridge section and produced in forming operation |
DE3119020A1 (en) | 1980-08-09 | 1982-04-29 | Nichifu Terminal Industries Co., Ltd., Osaka | ONE-PIECE DESIGNED, ELECTRICALLY ISOLATED CONNECTING TERMINALS ON A CONTINUOUS OR CONTINUOUS BAND |
US4466692A (en) * | 1980-08-09 | 1984-08-21 | Nichifu Terminal Industries Co., Ltd. | Integrally formed insulator assembly and method of manufacturing the same |
US4583640A (en) * | 1983-06-29 | 1986-04-22 | Molex Incorporated | Packaging arrangement for electrical connectors |
US4767353A (en) * | 1983-08-29 | 1988-08-30 | Amp Incorporated | Two part connector housings in strip form |
US4969845A (en) * | 1988-03-29 | 1990-11-13 | Legrand | Electric terminal connector |
US4813893A (en) * | 1988-05-17 | 1989-03-21 | Amp Incorporated | Electrical terminal and method of assembly |
US5017161A (en) * | 1988-06-21 | 1991-05-21 | Legrand | Electric terminal connector |
US5148596A (en) * | 1989-09-19 | 1992-09-22 | Autosplice, Inc. | Continuous molded electronic component assembly |
US5337468A (en) * | 1989-09-19 | 1994-08-16 | Autosplice, Inc. | Continuous molded electronic component assembly |
DE4128329A1 (en) * | 1991-08-27 | 1993-03-04 | Lumberg Karl Gmbh & Co | Production of mechanically coupled chain of multi-contact connectors - has connector housings formed such that socket of one engages plug of adjacent stage |
US5428890A (en) * | 1992-02-26 | 1995-07-04 | Zahn; Irvin | Method of making continuous molded electrical connectors and making connections thereto |
US5758589A (en) * | 1994-10-01 | 1998-06-02 | A. Raymond & Cie. | Plastic closure elements for garments, method and application |
US5934465A (en) * | 1996-10-22 | 1999-08-10 | Thomas & Betts Corporation | Cable tie bandoliers for use with automatic tools |
US5967316A (en) * | 1997-10-22 | 1999-10-19 | Thomas & Betts International, Inc. | Cable tie bandoliers for use with automatic tools |
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