Patent US3151385A successfully refreshed from Google Patents.
US3151385A
Expired / Lapsed
US
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Method of forming electrical contacts
Assignee: Gibson Electric Co
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Filing: 1962-10-03
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Granted: 1964-10-06
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Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Childress B Gwyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:41
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0237; H01H1/02372; H01H1/02374; H01H1/0231; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/49218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF FORMING AN INTEGRAL MAKE-AND-BREAK ELECTRICAL CONTACT ELEMENT COMPRISING CONFINING A SILVERCADMIUM OXIDE CONTACT FACE AND A COPPER BACKING MEMBER IN ALIGNED RELATION WITHIN A COMPRESSION CHAMBER HAVING A CROSS-SECTIONAL AREA IN EXCESS OF THE CROSS SECTIONS OF SAID CONTACT FACE AND SAID COPPER BACKING MEMBER, AND SUBJECTING THE ALIGNED CONTACT FACE AND BACKING MEMBER TO A COMPRESSIVE FORCE OF AT LEAST 1 TON PER SQUARE INCH, SAID FORCE BEING RAPIDLY APPLIED TO THE ALIGNED MEMBERS AT A VELOCITY OF AT LEAST 10 INCHES PER SECOND TO WELD THE CONTACT FACE AND THE BACKING MEMBER TOGETHER AND THEREBY FORM THE INTEGRALLY BONDED COMPOSITE CONTACT ELEMENT.
Claim 2
Independent Claim
107 words
A METHOD OF FORMING AN INTEGRAL MAKE-AND-BREAK ELECTRICAL CONTACT ELEMENT COMPRISING CONFINING A SILVERCADMIUM OXIDE CONTACT FACE AND A COPPER BACKING MEMBER IN ALIGNED RELATION WITHIN A COMPRESSION CHAMBER HAVING A CROSS-SECTIONAL AREA IN EXCESS OF THE CROSS SECTIONS OF SAID CONTACT FACE AND SAID COPPER BACKING MEMBER, AND SUBJECTING THE ALIGNED CONTACT FACE AND BACKING MEMBER TO A COMPRESSIVE FORCE OF AT LEAST 1 TON PER SQUARE INCH, SAID FORCE BEING RAPIDLY APPLIED TO THE ALIGNED MEMBERS AT A VELOCITY OF AT LEAST 10 INCHES PER SECOND TO WELD THE CONTACT FACE AND THE BACKING MEMBER TOGETHER AND THEREBY FORM THE INTEGRALLY BONDED COMPOSITE CONTACT ELEMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |