US3157455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: NEC Corp
•
Filing: 1962-12-24
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Granted: 1964-11-17
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Takano Eisuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:15
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/33; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/392; Y10T24/3922; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN ELECTRICAL CONNECTOR COMPRISING AT LEAST ONE HELICALLY WOUND METAL SPRING MEMBER HAVING A PORTION WITH AN ELLIPTICAL CROSS SECTION, AND AN ELONGATE METAL PLUG MEMBER ADAPTED FOR INSERTION INTO SAID SPRING MEMBER, ONE OF SAID MEMBERS BEING AXIALLY TWISTED, SAID PLUG MEMBER HAVING A SET OF OPPOSITE EDGES FOR ENGAGING THE INDIVIDUAL COILS OF SAID SPRING MEMBER, SAID PLUG MEMBER FURTHER HAVING A WIDTH APPROXIMATELY EQUAL TO THE MAJOR AXIS OF SAID ELLIPTICAL CROSS SECTION TO CAUSE TORSIONAL DISPLACEMENT OF SPACED COILS RELATIVE TO ONE ANOTHER UPON INSERTION OF SAID PLUG MEMBER INTO SAID SPRING MEMBER, WHEREBY CONTACT PRESSURE BETWEEN SAID EDGES AND SAID COILS IS PRODUCED BY SAID TORSIONAL DISPLACEMENT UPON INSERTION OF SAID PLUG MEMBER AS AFORESAID.
Claim 2
Dependent Claim
120 words
AN ELECTRICAL CONNECTOR COMPRISING AT LEAST ONE HELICALLY WOUND METAL SPRING MEMBER HAVING A PORTION WITH AN ELLIPTICAL CROSS SECTION, AND AN ELONGATE METAL PLUG MEMBER ADAPTED FOR INSERTION INTO SAID SPRING MEMBER, ONE OF SAID MEMBERS BEING AXIALLY TWISTED, SAID PLUG MEMBER HAVING A SET OF OPPOSITE EDGES FOR ENGAGING THE INDIVIDUAL COILS OF SAID SPRING MEMBER, SAID PLUG MEMBER FURTHER HAVING A WIDTH APPROXIMATELY EQUAL TO THE MAJOR AXIS OF SAID ELLIPTICAL CROSS SECTION TO CAUSE TORSIONAL DISPLACEMENT OF SPACED COILS RELATIVE TO ONE ANOTHER UPON INSERTION OF SAID PLUG MEMBER INTO SAID SPRING MEMBER, WHEREBY CONTACT PRESSURE BETWEEN SAID EDGES AND SAID COILS IS PRODUCED BY SAID TORSIONAL DISPLACEMENT UPON INSERTION OF SAID PLUG MEMBER AS AFORESAID.
References Cited (Backward Citations)
US1392558A
Cited
GB227101A
Cited
US2427001A
Cited
GB621811A
Cited
FR967302A
Cited
FR1013561A
Cited
US2924807A
Cited
US2982935A
Cited
US3058083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |