US2954809A - Screw holding, screw driver attachment - Google Patents

Screw holding, screw driver attachment Download PDF

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Publication number
US2954809A
US2954809A US741123A US74112358A US2954809A US 2954809 A US2954809 A US 2954809A US 741123 A US741123 A US 741123A US 74112358 A US74112358 A US 74112358A US 2954809 A US2954809 A US 2954809A
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sleeve
shank
screw
screwdriver
attachment
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US741123A
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Eugene M Loewy
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers

Definitions

  • TheV invention accordingly consists in the features of construction, combinations of elements, and arrangef ments of parts, which will be exemplied in the construction hereinafter described, and of which the scope will be indicated by the appended claims.
  • Fig. l is a longitudinal sectional view showing a screwdriver attachment of the present invention associ-ated with the shank of a screwdriver, and in one operative condition with respect to the latter;
  • Fig. 2 is a longitudinal sectional View similar to Fig. l, but showing the attachment and shank in another operative condition of use;
  • Fig. 3 is a transverse sectional view taken substantially along the -line 3 3 of Fig. 2;
  • Fig. 4 is a longitudinal sectional view showing a slightly modified form of screwdriver attachment of the present invention, associated with a screwdriver shank, and illustrating in phantom an alternative condition of operation;
  • Fig. 5 is a transverse sectional view taken substantially along the line 5-5 ⁇ of Fig. 4;
  • Fig. 6 is a longitudinal sectional view showing still another slightly modied embodiment of the present invention, in operative association with the shank of a screwdriver, and illustrating
  • Fig. 7 is a transverse -sectional view taken substantially along the line 7--7 of Fig. 6.
  • an attachment of the present invention is there generally designated 10, and illustrated as carried by the shank 11 of a screwdriver.
  • the screwdriver shank 11 is broken away to conserve drawing space, and includes a major portion 12, generally of circular cross-sectional configuration suitably ICC fixed to the handle (not shown), and having its end portion 13 of an outwardly tapering or wedge-shape terminating in a transverse, relatively thin distal or end edge 14 for engagement in the slot of a screwhead 'Ihat is, the working end portion 13 of the shank 11 tapers longitudinally outward tow-ard the end edge 14 in a longitudinal plane substantially normal to the plane of Figs. 1 and 2, in the conventional manner.
  • the shank end portion 13 is configured to diverge or increase in its lateral dimensions, as along its side edges 15 in the direction outward or away from the handle end of the shank, to a relatively wide or maximum width portion 16, and thence converging or tapering, as at 17 toward the end edge 14.
  • the maximum width portion 16 of the4 end portion 13 thus projects laterally beyond opposite sides of the remainder of the shank 11.
  • the attachment 10 assumes the general configuration of an open ended tube or sleeve and is preferably fabricated of suitably stiff, ibut resiliently flexible material, such as durable plastic or rubber. More specifically, the sleeve of attachment 10 maybe of generally cylindrical external configuration having its inner end portion 20, normally adjacent to the handle of the screwdriver, provided externally with peripheral grooves or recesses 21 to facilitate manual gripping of the sleeve. The outer or distal end portion 22 of the sleeve 10 is located adjacent to the outer or distal end portion 13 of the shank 11.
  • the sleeve 10 is internally formed Iwith a longitudinal,A generally cylindrical through passageway 23 opening through opposite inner and outer ends 24, 25 of the sleeve.
  • a pair of slots 26 are a pair of slots 26, each opening laterally between the interior passageway 23 of the sleeve and the exterior of the sleeve, and terminating at llocations 27 spaced from the outer sleeve end.
  • Interior-ly of the outer sleeve end portion 22, adjacent to the outer end 25, are
  • the shoulders 33 are disposed in facing, diametrically opposed relation interiorly of the sleeve 10, each extending chordally or transversely with respect to the sleeve and being located -between the slots 26 on respective opposite sides of the slots.
  • the slots 26 may be considered as subdividing the outer end portion 22 of the sleeve 10 into a pair of complementary semi-cylindrical sections 22a disposed in facing relationwith respect to each other and resiliently deflectable by -the character of the material of sleeve 10 between their adjacent condition of Fig. 2, and their spaced or spaced apart condition of Fig. l. It will be noted that the shoulders 33 ⁇ are respectively located in the sections ⁇ 22a.
  • the sleeve 11i is further formed with a pair of ⁇ diametrically opposed, longitudinally vextending internal grooves 35, each located in a respective complementary section 22a and spaced medially of the slots 26.
  • the grooves 35 each extend longitudinally inward from the end surface 25 of the sleeve 10 and terminate at the shoulder 33 of the respective sleeve section 22a.
  • the screw 39 is retained in the condition of Fig. 2 in position to be driven or turned, after which itis only necessaryv to Withdraw the shank ⁇ andA sleeve, the latter automatically releasing the screw head.
  • FIGs. 4 and 5 are shown a slightly modi/tied form of the instant invention, wherein an attachment sleeve generally designated 11@ is adapted for application to a screwdriver shank 111 which includes a wedge-type working end portion 113, but is of constant width, having, no maximum width portion as in the first described embodiment.
  • the sleeve 1112 is of generally cylindrical yexternal configuration, being provided adjacent to its inner end 124 with annular externai gripping grooves 121, ani formed with a plurality of longitudinally extending, circnrnferentially spaced, external ribs 11S extending from the outer end surface 125toward and terminating short of the external grooves 121.
  • sleeve 110 Interiorly of the sleeve 110 is formed an axial, longitttdinally extending through passageway 123 opening at its inner and outer ends through the inner and outer end surfaces 124 and 125respectively. nteriorly of the passageway 123, adjacent to the outer end 125 of t'ne sleeve 110 are formed a plurality of internal, Vannular ribs 131. A pair of diametrically opposed slots 126 extend longitudinally of the sleeve 119 inward from the outer end 125 and terminate medially of the sleeve at diametrically opposed locations 127.
  • the slots 126 each open laterally from the interior passageway 123 of the sleeve 111i outward to the exterior of the sleeve, and serve to divide the outer end portion of the sleeve into a pair of facing, complementary semi-cylindrical sections 12d-2a resiliently distensible away from each other by the character of material of the sleeve 111i.
  • the inwardly expanding internal region 135 of the passageway 126 terminates at a pair of diametrically opposed, chordally or the transversely extending internal shoulders 133k located adjacent and longitudinally outward of the slot terminii 127. More specically, eachv of the opposed internal shoulders 133 is located in a respective sleeve section 122e rnedially between and on respective opposite sides of the slots 126. Extending longitudinally of the sleeve 11i) inward from the shoulders 133, the portion 136 of passageway 123 remains at approximately its maximum internai diameter until it opens into a reducedinner end portion 137 ofthe passageway.
  • the shoulders 133 engage with diametrically opposite regions of the shank 111, while the adjacent longitudinally inward portion of the sleeve 11)l is spaced appreciably from the shank by the relatively large passageway portion 136.
  • the shoulders 135 serve as fulcrums to effect youtward swinging or spreading apart of the outer endportions of sections 12211. This facilitates placement of a screw on the working endl of the screwdriver shank; and of course, release of the squeezing force permits return of the sections 122g towat@ cath. other inte screw holding engagement
  • This f manual operation thus serves to distend the outer end portion of the sleeve for the insertion therein of a screw to be retained thereby.
  • FIG. 6 and 7 Still another modification of the present invention is shown in Figs. 6 and 7, wherein a screwdriver shank 211 is illustrated as being of the same type as shank 111 described hereinbefo-re.
  • a sleeve 216 of stiff, resiliently deformable material is formed in an open ended tubular configuration and circurnpo.sed ⁇ about the shank 211.
  • the sleeve 21d may have manual gripping grooves formed externally thereof, asfat 221, ⁇ adjacent to its inner end surface 224, and is provided interiorly thereof with a generally cylindrical, longitudinally extending through passageway 223 opening outward through the outer sleeve surface 225, and inward through the inner sleeve end surface 224.
  • Internal screw gripping ribs 231 may be formed in the sleeve passageway 223, adjacent to the sleeve end 225; and, a pair of longitudinally extending, diametrically opposed slots 226 are formed extending inward through the outer sleeve end 225 and terminating at diametrically opposed locations 227 medially of the sleeve.
  • the slots 226 interrupt the internal end ribs 231, as inthe aforedescribed embodiments, and separate the outer sleeve end portion into a pair of resiliently spreadable compiernentary, semi-cylindrical sections 222a.
  • the converging surfaces of the wedge-shaped Working end portion 213 of shank 211 are engageaole with the shoulders 233,v respectively, upon relative sliding movement of the shank and sieeve 210 to effect resilient distension of the outer sleeve end portion or spreading apart of the sleeve sections 222:1, as by shifting of the sleeve from its solid line position to its dot-and-dash outline position.
  • the sections 222a return into their contiguous relation.
  • the shoulders 233 define cam means, in a manner Similar to the shoulders ,33 of the rst described embodiment, and ride upon the opposed converging surfaces of wedge portion 213 to eifect the desired distension of the outer sleeve end portion.
  • a screw 239 may be engaged on the Working end edge of the shank 211 when the sleeve sections 22211 are spread apart, and retained thereon by the sleeve sections when retracted toward each other; or, the head of the screw may be manually snapped into the outer end portion of the sleeve, the sleeve sections 222er yielding as required to receive and ⁇ retain the screw head.
  • the present invention provides a screwdriver attachment for retaining a screw which fully accomplishes its intended objects and is well adapted to meet practical ⁇ conditions of manufacture and use.
  • a screwholding attachment for the shank of a screwdriver comprising an open-ended sleeve of stiif resiliently deformable material adapted to slidably receive the screwdriver shank, said sleeve being formed in one end portion thereof reinotefrom the screwdriver handle with a pair of diametrically'opposed slots extending longitudinally inward from one sleeve end and terminating short of the other end, said slots defining of the sleeve material therebetween a pair of longitudinally extending tongues resiliently flexible away from each other for receiving therebetween and snugly4 retainingV a.Y s crew, and a pair of internal4 transversely extending shoulders carried by said sleeve each located between and on respective opposite sides of said pair of slots spaced inward from said one sleeve end, said shoulders being respectively engageable with opposite edges of said screwdriver shank for effecting iexure of said tongues away from each other upon longitudinal relative sliding of said sleeve
  • a screwholding attachment according to claim 1 said grooves extending longitudinally inward from said one sleeve end and terminating at said shoulder respectively.

Description

Oct. 4, 1960 E. M. LoEwY 2,954,809
scREw HOLDING, scREw DRIVER ATTACHMENT Filed June 1o. 1958 INVENTOR. EUGENE M LOEWY ATTORNEYS SCREW HOLDING, SCREW DRIVER ATTACHIVIENT This invention relates generally to screwdriving devices, and is especially concerned with new and improved means for rreleasably retaining a screw during the driving or turning procedure.
It is an important object of the present invention to provide a device of the type described adapted for attachment to a screwdriver, which is extremely simple in construct-ion and operation, being durable and reliable over a long and useful life, which requires a minimum of parts, and is adapted to be economically manufactured for sale at a reasonable price.
it is another object of the present invention to provide a screwdriver attachment having the advantageous characteristics mentioned in the preceding paragraph, which is of extremely slender proportions and ladapted to be circumposed about the shank of a screwdriver so as to occupy negligible additional space, thereby aiording ease of entry and operation in small and relatively inaccessible locations.
Other objects of the present invention will become apparent upon reading the following specification and referring to the accompanying drawings, which form a material part of this disclosure.
TheV invention accordingly consists in the features of construction, combinations of elements, and arrangef ments of parts, which will be exemplied in the construction hereinafter described, and of which the scope will be indicated by the appended claims.
In the drawings:
Fig. l is a longitudinal sectional view showing a screwdriver attachment of the present invention associ-ated with the shank of a screwdriver, and in one operative condition with respect to the latter;
Fig. 2 is a longitudinal sectional View similar to Fig. l, but showing the attachment and shank in another operative condition of use;
Fig. 3 is a transverse sectional view taken substantially along the -line 3 3 of Fig. 2;
Fig. 4 is a longitudinal sectional view showing a slightly modified form of screwdriver attachment of the present invention, associated with a screwdriver shank, and illustrating in phantom an alternative condition of operation;
Fig. 5 is a transverse sectional view taken substantially along the line 5-5 `of Fig. 4;
Fig. 6 is a longitudinal sectional view showing still another slightly modied embodiment of the present invention, in operative association with the shank of a screwdriver, and illustrating |an alternative condition of use in phantom; and
Fig. 7 is a transverse -sectional view taken substantially along the line 7--7 of Fig. 6.
Referring now more particularly to the drawings, and specically to Figs. l and 2 thereof, an attachment of the present invention is there generally designated 10, and illustrated as carried by the shank 11 of a screwdriver. The screwdriver shank 11 is broken away to conserve drawing space, and includes a major portion 12, generally of circular cross-sectional configuration suitably ICC fixed to the handle (not shown), and having its end portion 13 of an outwardly tapering or wedge-shape terminating in a transverse, relatively thin distal or end edge 14 for engagement in the slot of a screwhead 'Ihat is, the working end portion 13 of the shank 11 tapers longitudinally outward tow-ard the end edge 14 in a longitudinal plane substantially normal to the plane of Figs. 1 and 2, in the conventional manner. In the plane of Figs. l and 2, the shank end portion 13 is configured to diverge or increase in its lateral dimensions, as along its side edges 15 in the direction outward or away from the handle end of the shank, to a relatively wide or maximum width portion 16, and thence converging or tapering, as at 17 toward the end edge 14. The maximum width portion 16 of the4 end portion 13 thus projects laterally beyond opposite sides of the remainder of the shank 11.
The attachment 10 assumes the general configuration of an open ended tube or sleeve and is preferably fabricated of suitably stiff, ibut resiliently flexible material, such as durable plastic or rubber. More specifically, the sleeve of attachment 10 maybe of generally cylindrical external configuration having its inner end portion 20, normally adjacent to the handle of the screwdriver, provided externally with peripheral grooves or recesses 21 to facilitate manual gripping of the sleeve. The outer or distal end portion 22 of the sleeve 10 is located adjacent to the outer or distal end portion 13 of the shank 11.
The sleeve 10 is internally formed Iwith a longitudinal,A generally cylindrical through passageway 23 opening through opposite inner and outer ends 24, 25 of the sleeve. At diametrically opposed locations on the sleeve 10, ex tending longitudinally of the sleeve inward from the outersleeve end 25 are a pair of slots 26, each opening laterally between the interior passageway 23 of the sleeve and the exterior of the sleeve, and terminating at llocations 27 spaced from the outer sleeve end. Interior-ly of the outer sleeve end portion 22, adjacent to the outer end 25, are
formed a plurality of internal annular grooves 30, defining there between internal annular ribs 31, which grooves and ribs are interrupted by the slots 26.
Internally of the attachment sleeve 19, spaced inward from the outer sleeve end 25 and located medial-ly of the longitudinal extent of slots 26 are a pair of opposed, facing shoulders 33. That is, the shoulders 33 are disposed in facing, diametrically opposed relation interiorly of the sleeve 10, each extending chordally or transversely with respect to the sleeve and being located -between the slots 26 on respective opposite sides of the slots. Viewed otherwise, the slots 26 may be considered as subdividing the outer end portion 22 of the sleeve 10 into a pair of complementary semi-cylindrical sections 22a disposed in facing relationwith respect to each other and resiliently deflectable by -the character of the material of sleeve 10 between their adjacent condition of Fig. 2, and their spaced or spaced apart condition of Fig. l. It will be noted that the shoulders 33 `are respectively located in the sections` 22a.
The sleeve 11i is further formed with a pair of `diametrically opposed, longitudinally vextending internal grooves 35, each located in a respective complementary section 22a and spaced medially of the slots 26. The grooves 35 each extend longitudinally inward from the end surface 25 of the sleeve 10 and terminate at the shoulder 33 of the respective sleeve section 22a.
In the condition of Fig. 1 it willbe noted that the shank 1v1 has been withdrawn from the position of Fig.
2, with the shoulders 33 riding on the shank edge por- 3 v the diverging edge portions 15. In this condition of Fig. 2, the shoulders 33 engage with the cylindrical portion 12 of shank 11, the maximum width portion 16 of the shank end portion 13 engaging with the bottom walls of grooves 35, and the Lribs 31 engaging with the head f a, Screw 39 to releasably and reslently ,retain the latter in position on the end edge 14 of the shank, This illustrated condition approaches. a minirnurn size of screw adapted` to be retained in the particular attachment 1Q, and it is appreciated that a Wide variety of larger screw head sizes may be releasably retained in the same attachment sleeve.
The screw 39 is retained in the condition of Fig. 2 in position to be driven or turned, after which itis only necessaryv to Withdraw the shank` andA sleeve, the latter automatically releasing the screw head.
In Figs. 4 and 5 are shown a slightly modi/tied form of the instant invention, wherein an attachment sleeve generally designated 11@ is adapted for application to a screwdriver shank 111 which includes a wedge-type working end portion 113, but is of constant width, having, no maximum width portion as in the first described embodiment.
The sleeve 1112 is of generally cylindrical yexternal configuration, being provided adjacent to its inner end 124 with annular externai gripping grooves 121, ani formed with a plurality of longitudinally extending, circnrnferentially spaced, external ribs 11S extending from the outer end surface 125toward and terminating short of the external grooves 121.
Interiorly of the sleeve 110 is formed an axial, longitttdinally extending through passageway 123 opening at its inner and outer ends through the inner and outer end surfaces 124 and 125respectively. nteriorly of the passageway 123, adjacent to the outer end 125 of t'ne sleeve 110 are formed a plurality of internal, Vannular ribs 131. A pair of diametrically opposed slots 126 extend longitudinally of the sleeve 119 inward from the outer end 125 and terminate medially of the sleeve at diametrically opposed locations 127. The slots 126 each open laterally from the interior passageway 123 of the sleeve 111i outward to the exterior of the sleeve, and serve to divide the outer end portion of the sleeve into a pair of facing, complementary semi-cylindrical sections 12d-2a resiliently distensible away from each other by the character of material of the sleeve 111i.
The interior passageway 123 ofthe sleeve 1 10s of a gradually expanding or diverging configuration in the region 135 extending inward from the outer end region of the ribs 131. The inwardly expanding internal region 135 of the passageway 126 terminates at a pair of diametrically opposed, chordally or the transversely extending internal shoulders 133k located adjacent and longitudinally outward of the slot terminii 127. More specically, eachv of the opposed internal shoulders 133 is located in a respective sleeve section 122e rnedially between and on respective opposite sides of the slots 126. Extending longitudinally of the sleeve 11i) inward from the shoulders 133, the portion 136 of passageway 123 remains at approximately its maximum internai diameter until it opens into a reducedinner end portion 137 ofthe passageway.
As seen in Figs. 4 and 5, the shoulders 133 engage with diametrically opposite regions of the shank 111, while the adjacent longitudinally inward portion of the sleeve 11)l is spaced appreciably from the shank by the relatively large passageway portion 136. Hence, by manual inward deection or squeezing of the sleeve 111, at`the locations of the arrows 138, the shoulders 135 serve as fulcrums to effect youtward swinging or spreading apart of the outer endportions of sections 12211. This facilitates placement of a screw on the working endl of the screwdriver shank; and of course, release of the squeezing force permits return of the sections 122g towat@ cath. other inte screw holding engagement This f manual operation thus serves to distend the outer end portion of the sleeve for the insertion therein of a screw to be retained thereby.
Still another modification of the present invention is shown in Figs. 6 and 7, wherein a screwdriver shank 211 is illustrated as being of the same type as shank 111 described hereinbefo-re. A sleeve 216 of stiff, resiliently deformable material is formed in an open ended tubular configuration and circurnpo.sed` about the shank 211. The sleeve 21d may have manual gripping grooves formed externally thereof, asfat 221,` adjacent to its inner end surface 224, and is provided interiorly thereof with a generally cylindrical, longitudinally extending through passageway 223 opening outward through the outer sleeve surface 225, and inward through the inner sleeve end surface 224. Internal screw gripping ribs 231 may be formed in the sleeve passageway 223, adjacent to the sleeve end 225; and, a pair of longitudinally extending, diametrically opposed slots 226 are formed extending inward through the outer sleeve end 225 and terminating at diametrically opposed locations 227 medially of the sleeve. Thus, the slots 226 interrupt the internal end ribs 231, as inthe aforedescribed embodiments, and separate the outer sleeve end portion into a pair of resiliently spreadable compiernentary, semi-cylindrical sections 222a. lnteriorly of the sleeve 21d, medially of the longitudinal extent of slots 2,26, are formed a pair of diametrically opposed, chordally or transversely Vextending shoulders 233. The shoulders 233 are each located in a respective section 222a spaced medially of the slots 226.
The converging surfaces of the wedge-shaped Working end portion 213 of shank 211 are engageaole with the shoulders 233,v respectively, upon relative sliding movement of the shank and sieeve 210 to effect resilient distension of the outer sleeve end portion or spreading apart of the sleeve sections 222:1, as by shifting of the sleeve from its solid line position to its dot-and-dash outline position. Of course, upon return of the sleeve and shank to their solid line positions, the sections 222a return into their contiguous relation. Thus, the shoulders 233 define cam means, in a manner Similar to the shoulders ,33 of the rst described embodiment, and ride upon the opposed converging surfaces of wedge portion 213 to eifect the desired distension of the outer sleeve end portion. A screw 239 may be engaged on the Working end edge of the shank 211 when the sleeve sections 22211 are spread apart, and retained thereon by the sleeve sections when retracted toward each other; or, the head of the screw may be manually snapped into the outer end portion of the sleeve, the sleeve sections 222er yielding as required to receive and` retain the screw head.
From the foregoing, it is seen that the present invention provides a screwdriver attachment for retaining a screw which fully accomplishes its intended objects and is well adapted to meet practical` conditions of manufacture and use.
Although the present invention has been described in some detail by way of illustration and example `for purposes of clarity of understanding, it is understood thatV certain changes and modifications may be made within the spirit of the invention 4and scope of the appended claims.
What is claimed is:
l. A screwholding attachment for the shank of a screwdriver, said attachment comprising an open-ended sleeve of stiif resiliently deformable material adapted to slidably receive the screwdriver shank, said sleeve being formed in one end portion thereof reinotefrom the screwdriver handle with a pair of diametrically'opposed slots extending longitudinally inward from one sleeve end and terminating short of the other end, said slots defining of the sleeve material therebetween a pair of longitudinally extending tongues resiliently flexible away from each other for receiving therebetween and snugly4 retainingV a.Y s crew, and a pair of internal4 transversely extending shoulders carried by said sleeve each located between and on respective opposite sides of said pair of slots spaced inward from said one sleeve end, said shoulders being respectively engageable with opposite edges of said screwdriver shank for effecting iexure of said tongues away from each other upon longitudinal relative sliding of said sleeve on said screwdriver shank, said sleeve being formed internally thereof with a pair of longitudinally extending grooves on opposite sides of said pair of slots for respectively slidably receiving opposite side edges of said shank.
2. A screwholding attachment according to claim 1, said grooves extending longitudinally inward from said one sleeve end and terminating at said shoulder respectively.
References Cited in the le of this patent UNITED STATES PATENTS 942,742 Presson Dec. 7, 1909 1,659,671 Stone Feb. 21, 1928 2,723,694 Ross Nov. 15, 1955 FOREIGN PATENTS 620,451 Great Britain Mar. 24, 1949 OTHER REFERENCES Hilgers: A.P.C. application No. 360,381, published May 11, 1943.
US741123A 1958-06-10 1958-06-10 Screw holding, screw driver attachment Expired - Lifetime US2954809A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581963A (en) * 1985-07-03 1986-04-15 Kim Han K Screw holding device for screwdrivers
US4581962A (en) * 1982-06-07 1986-04-15 Marbourg Edgar F Tool to capture, control and manipulate threaded fasteners
DE3601129A1 (en) * 1986-01-16 1987-07-30 Egon Voswinkel SCREWDRIVER
US4800647A (en) * 1987-09-14 1989-01-31 General Electric Company Electric module insertion tool
US4800788A (en) * 1987-04-04 1989-01-31 Innovative Computer Tools, Inc. Non-slip screwdriver
US4976585A (en) * 1988-04-08 1990-12-11 Nuovopignone-Industrie Meccaniche E Fonderia S.P.A. System for the rapid balancing of revolving shafts, particularly suitable for gas turbines
FR2703288A1 (en) * 1993-03-31 1994-10-07 Bellemere Philippe Universal tool holder especially for fitting fasteners into supports which are difficult to access
US6189422B1 (en) * 1998-07-17 2001-02-20 Karl Storz Gmbh & Co. Kg Screwdriver
US6626347B2 (en) * 2002-02-11 2003-09-30 Kim Kwee Ng Fastener retaining device for fastener driver
US6857343B1 (en) 2003-09-30 2005-02-22 Codman & Shurtleff, Inc. Spring-loaded threaded fastener holder
US6904836B1 (en) * 2002-02-01 2005-06-14 Petru Andrei Screw holding screwdriver adapter
US20070295172A1 (en) * 2006-06-23 2007-12-27 Darian Swartz Fastener Holding Device
US8763499B2 (en) 2010-06-04 2014-07-01 The University Of North Carolina At Chapel Hill Screw holder-driver apparatuses, systems and methods
US20140311303A1 (en) * 2013-04-19 2014-10-23 Shou King Enterprise Co., Ltd. Screwdriver gripping tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US942742A (en) * 1908-08-26 1909-12-07 Bert Presson Screw-driver.
US1659671A (en) * 1927-06-11 1928-02-21 Nunley H Stone Screw-driver attachment
GB620451A (en) * 1947-01-17 1949-03-24 John Joel Improvements in and relating to screwdrivers
US2723694A (en) * 1953-01-23 1955-11-15 James P Ross Screw driver attachment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US942742A (en) * 1908-08-26 1909-12-07 Bert Presson Screw-driver.
US1659671A (en) * 1927-06-11 1928-02-21 Nunley H Stone Screw-driver attachment
GB620451A (en) * 1947-01-17 1949-03-24 John Joel Improvements in and relating to screwdrivers
US2723694A (en) * 1953-01-23 1955-11-15 James P Ross Screw driver attachment

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581962A (en) * 1982-06-07 1986-04-15 Marbourg Edgar F Tool to capture, control and manipulate threaded fasteners
US4581963A (en) * 1985-07-03 1986-04-15 Kim Han K Screw holding device for screwdrivers
DE3601129A1 (en) * 1986-01-16 1987-07-30 Egon Voswinkel SCREWDRIVER
US4800788A (en) * 1987-04-04 1989-01-31 Innovative Computer Tools, Inc. Non-slip screwdriver
US4800647A (en) * 1987-09-14 1989-01-31 General Electric Company Electric module insertion tool
US4976585A (en) * 1988-04-08 1990-12-11 Nuovopignone-Industrie Meccaniche E Fonderia S.P.A. System for the rapid balancing of revolving shafts, particularly suitable for gas turbines
FR2703288A1 (en) * 1993-03-31 1994-10-07 Bellemere Philippe Universal tool holder especially for fitting fasteners into supports which are difficult to access
US6189422B1 (en) * 1998-07-17 2001-02-20 Karl Storz Gmbh & Co. Kg Screwdriver
US6904836B1 (en) * 2002-02-01 2005-06-14 Petru Andrei Screw holding screwdriver adapter
US6626347B2 (en) * 2002-02-11 2003-09-30 Kim Kwee Ng Fastener retaining device for fastener driver
US6857343B1 (en) 2003-09-30 2005-02-22 Codman & Shurtleff, Inc. Spring-loaded threaded fastener holder
US20070295172A1 (en) * 2006-06-23 2007-12-27 Darian Swartz Fastener Holding Device
US8763499B2 (en) 2010-06-04 2014-07-01 The University Of North Carolina At Chapel Hill Screw holder-driver apparatuses, systems and methods
US20140311303A1 (en) * 2013-04-19 2014-10-23 Shou King Enterprise Co., Ltd. Screwdriver gripping tool

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