US3362366A - Method of making electrical connectors - Google Patents
Method of making electrical connectors Download PDFInfo
- Publication number
- US3362366A US3362366A US432512A US43251265A US3362366A US 3362366 A US3362366 A US 3362366A US 432512 A US432512 A US 432512A US 43251265 A US43251265 A US 43251265A US 3362366 A US3362366 A US 3362366A
- Authority
- US
- United States
- Prior art keywords
- shell
- electrical connectors
- making electrical
- cup form
- completed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
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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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
- Y10T29/49918—At cup or tube end
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force
Definitions
- a connector such as is here disclosed in FIG. 3, comprises a shell 10, a locking ring 11, and a collar 12, with the parts in the completed assembly being shown in the Waring Patent 2,458,276 as well as in FIG. 3 hereof.
- the shell of FIG. 2 is produced from a flat, thin, metal sheet, by drawing into a cylindrical cup form as in FIG. 1.
- a thread is rolled in the sidewall of the cup form.
- Disc 16 which a portion of forms the bottom of the cup form of FIG. 1 is cut out leaving a radially inwardly extending bead and the bead at the lower edge of the cup form where the disc was removed is rolled inwardly as shown at double bead 18, FIG. 2.
- the upper edge of the cup form is radially outwardly flanged as shown at 20 and is later drawn axially upwardly as shown at 22 in FIG, 2 to form an internal shoulder 24, When 3,362,366 Patented Jan. 9, 1968 all these steps have been completed there is produced the completed shell of FIG. 2.
- a locking ring 11 is inserted into the completed shell of FIG. 2 and rested on the shoulder 24 as shown in FIG. 3.
- the method herein disclosed is extraordinarily simple. All of the steps of forming the shell may be performed in a single well-known machine known as an eyelet machine which in one continuous series of steps performs all of the steps necessary to form the completed shell of FIG. 2, starting from a flat, thin metal sheet, with the shell having its bottom cut out, its lower edge rolled inwardly, its sidewall formed with rolled threads and its upper edge flanged outwardly and upwardly, all as shown in FIG. 2.
- a method for making a shell comprising:
Description
Jim. 9, 1968 Q C. (5. LIFKA 3,362,366
METHOD OF MAKING ELECTRICAL CONNECTORS Filed Feb. 15', 1965 FlG.2
INVENTOR CHARLES e. LIFKA- QM. 910%; 00 BY ATTORNEYS United States Patent 3,362,366 METHOD OF MAKING ELECTRICAL CONNECTORS Charles G. Lifka, Boca Raton, Fla, assignor to Charles G. Lifka, trustee, Detroit, Mich. Filed Feb. 15, 1965, Ser. No. 432,512 1 Claim. (Cl. 113-116) ABSTRACT OF THE DISCLOSURE A method for forming a shell for an article like that disclosed in FIG. 4 of Patent 2,986,060 of May 30, 1961, wherein the side wall thread is rolled before the bottom is cut out and before the bottom edge is double beaded; and wherein a flat lateral flange is formed radially before the bottom edge is double beaded.
. A connector such as is here disclosed in FIG. 3, comprises a shell 10, a locking ring 11, and a collar 12, with the parts in the completed assembly being shown in the Waring Patent 2,458,276 as well as in FIG. 3 hereof.
The method herein disclosed for making such connector is as follows:
The shell of FIG. 2 is produced from a flat, thin, metal sheet, by drawing into a cylindrical cup form as in FIG. 1. A thread is rolled in the sidewall of the cup form. Disc 16 which a portion of forms the bottom of the cup form of FIG. 1 is cut out leaving a radially inwardly extending bead and the bead at the lower edge of the cup form where the disc was removed is rolled inwardly as shown at double bead 18, FIG. 2. The upper edge of the cup form is radially outwardly flanged as shown at 20 and is later drawn axially upwardly as shown at 22 in FIG, 2 to form an internal shoulder 24, When 3,362,366 Patented Jan. 9, 1968 all these steps have been completed there is produced the completed shell of FIG. 2.
Thereafter to form the completed connector, a locking ring 11 is inserted into the completed shell of FIG. 2 and rested on the shoulder 24 as shown in FIG. 3.
Thereafter a collar 12 having an outwardly flanged lower edge 26 is inserted into the shell on the locking ring 11 on the shoulder 24 of the shell With flange 26 of the collar resting on the locking ring 11.
Finally the enlarged upper edge 22 of the shell is rolled inwardly over the flange 26 of the collar to complete the assembly.
The method herein disclosed is extraordinarily simple. All of the steps of forming the shell may be performed in a single well-known machine known as an eyelet machine which in one continuous series of steps performs all of the steps necessary to form the completed shell of FIG. 2, starting from a flat, thin metal sheet, with the shell having its bottom cut out, its lower edge rolled inwardly, its sidewall formed with rolled threads and its upper edge flanged outwardly and upwardly, all as shown in FIG. 2.
Now having described the method hereof, reference should be had to the claim which follows.
I claim:
1. A method for making a shell comprising:
drawing a cylindrical cup form from a flat, thin metal sheet with said cup form having a flat circular bottom;
rolling a thread in the sidewall of the cup form;
cutting out the disc forming the bottom of the threaded cup form inwardly of the sidewall to leave a radially inwardly extending bead thereon;
outwardly flanging the upper edge of the cup form radially and laterally to form a radially outwardly extending flat flange;
and rolling said head on the lower edge of the threaded cup form where the disc was removed to the inside of the cup form to form a double bead thereon;
all this forming the shell.
References Cited UNITED STATES PATENTS 1,867,412 7/ 1932 Klocke. 2,185,216 1/ 1940 McManus et al. 2,232,098 2/ 1941 Deichman. 2,458,276 1/ 1949 Langley et al. 285-161 2,986,060 5/1961 Lifka 285-161 876,361 1/ 1908 Kraft et al.
CHARLIE T. MOON, Primary Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US432512A US3362366A (en) | 1965-02-15 | 1965-02-15 | Method of making electrical connectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US432512A US3362366A (en) | 1965-02-15 | 1965-02-15 | Method of making electrical connectors |
Publications (1)
Publication Number | Publication Date |
---|---|
US3362366A true US3362366A (en) | 1968-01-09 |
Family
ID=23716468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US432512A Expired - Lifetime US3362366A (en) | 1965-02-15 | 1965-02-15 | Method of making electrical connectors |
Country Status (1)
Country | Link |
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US (1) | US3362366A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3899658A (en) * | 1973-09-06 | 1975-08-12 | Gen Electric | Sheathed heating element installation |
US4490576A (en) * | 1981-08-10 | 1984-12-25 | Appleton Electric Co. | Connector for use with jacketed metal clad cable |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US876361A (en) * | 1907-04-12 | 1908-01-14 | Henry P Kraft | Process of making socket members for hot-water bottles or the like. |
US1867412A (en) * | 1928-12-28 | 1932-07-12 | Cleveland Graphite Bronze Co | Method of making bearings |
US2185216A (en) * | 1935-09-14 | 1940-01-02 | Crown Can Company | Metal container |
US2232098A (en) * | 1938-02-11 | 1941-02-18 | Hygrade Sylvania Corp | Cathode ray tube |
US2458276A (en) * | 1947-07-02 | 1949-01-04 | Norman A Grams | Electric conduit connector |
US2986060A (en) * | 1959-06-22 | 1961-05-30 | Lifka Charles | Connector fittings for thin wall conduit |
-
1965
- 1965-02-15 US US432512A patent/US3362366A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US876361A (en) * | 1907-04-12 | 1908-01-14 | Henry P Kraft | Process of making socket members for hot-water bottles or the like. |
US1867412A (en) * | 1928-12-28 | 1932-07-12 | Cleveland Graphite Bronze Co | Method of making bearings |
US2185216A (en) * | 1935-09-14 | 1940-01-02 | Crown Can Company | Metal container |
US2232098A (en) * | 1938-02-11 | 1941-02-18 | Hygrade Sylvania Corp | Cathode ray tube |
US2458276A (en) * | 1947-07-02 | 1949-01-04 | Norman A Grams | Electric conduit connector |
US2986060A (en) * | 1959-06-22 | 1961-05-30 | Lifka Charles | Connector fittings for thin wall conduit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3899658A (en) * | 1973-09-06 | 1975-08-12 | Gen Electric | Sheathed heating element installation |
US4490576A (en) * | 1981-08-10 | 1984-12-25 | Appleton Electric Co. | Connector for use with jacketed metal clad cable |
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