Patent DE392345C successfully refreshed from Google Patents.
US3076086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance welding apparatus
Assignee: Individual
•
Filing: 1961-01-03
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Granted: 1963-01-29
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 James H Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:39
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A MANDREL ASSEMBLY FOR THE RESISTANCE WELDING OF THE COMPONENTS OF A HOLLOW STRUCTURE, SAID MANDREL ASSEMBLY COMPRISING SEAT MEANS FORMED OF ELECTRICAL INSULATION MATERIAL AND ADAPTED FOR INSERTION WITHIN THE HOLLOW STRUCTURE, A PAIR OF ELECTRICALLY CONDUCTIVE MANDREL ELEMENTS MOUNTED BY SAID SEAT MEANS, SPRING MEANS YIELDABLY RETAINING SAID ELEMENTS IN POSITION IN SAID SEAT MEANS, AND AN ELECTRICALLY CONDUCTIVE WEDGE INSERTABLE BETWEEN SAID ELEMENTS FOR MOVING THEM TOWARD THE ASSOCIATED RESISTANCE WELDING ELECTRODES AGAINST THE BIAS OF SAID SPRING MEANS.
Claim 2
Dependent Claim
82 words
A MANDREL ASSEMBLY FOR THE RESISTANCE WELDING OF THE COMPONENTS OF A HOLLOW STRUCTURE, SAID MANDREL ASSEMBLY COMPRISING SEAT MEANS FORMED OF ELECTRICAL INSULATION MATERIAL AND ADAPTED FOR INSERTION WITHIN THE HOLLOW STRUCTURE, A PAIR OF ELECTRICALLY CONDUCTIVE MANDREL ELEMENTS MOUNTED BY SAID SEAT MEANS, SPRING MEANS YIELDABLY RETAINING SAID ELEMENTS IN POSITION IN SAID SEAT MEANS, AND AN ELECTRICALLY CONDUCTIVE WEDGE INSERTABLE BETWEEN SAID ELEMENTS FOR MOVING THEM TOWARD THE ASSOCIATED RESISTANCE WELDING ELECTRODES AGAINST THE BIAS OF SAID SPRING MEANS.
References Cited (Backward Citations)
DE572662C
Cited
US2057017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |