Patent US1157099A successfully refreshed from Google Patents.
Patent US3100831A successfully refreshed from Google Patents.
US3100831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic force welder
Assignee: ACRO WELDER Mfg Co
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Filing: 1961-03-22
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Granted: 1963-08-13
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Expires: 1981-03-22
Abstract
No abstract record available.
Inventors
- 👤 William M Wakeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:50
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A WELDING MACHINE COMPRISING, A FRAME INCLUDING A STATIONARY ELECTRODE, A SPINDLE MOUNTED IN THE FRAME FOR MOVEMENT TOWARD AND AWAY FROM THE STATIONARY ELECTRODE, AN ELECTRODE CARRIER POSITIONED AT ONE END OF THE SPINDLE FOR SUPPORTING A MOVABLE ELECTRODE, ELECTROMAGNETIC MEANS SUPPORTED BY THE FRAME FOR BIASING THE SPINDLE TOWARD THE STATIONARY ELECTRODE WITH A PREDETERMINED PRESSURE TO CLAMP A WORKPIECE THEREBETWEEN, AND MEANS FOR PASSING AN ELECTRODE CURRENT THROUGH THE ELECTRODES AFTER A PREDETERMINED PRESSURE HAS BEEN ESTABLISHED ON THE ELECTRODES, SAID ELECTROMAGNETIC MEANS INCLUDING MEANS FOR EXERTING A LIFTING FORCE ON THE SPINDLE AFTER THE WELDING OPERATION TO RELEASE THE WORKPIECE FROM BETWEEN THE ELECTRODES.
Claim 2
Dependent Claim
108 words
A WELDING MACHINE COMPRISING, A FRAME INCLUDING A STATIONARY ELECTRODE, A SPINDLE MOUNTED IN THE FRAME FOR MOVEMENT TOWARD AND AWAY FROM THE STATIONARY ELECTRODE, AN ELECTRODE CARRIER POSITIONED AT ONE END OF THE SPINDLE FOR SUPPORTING A MOVABLE ELECTRODE, ELECTROMAGNETIC MEANS SUPPORTED BY THE FRAME FOR BIASING THE SPINDLE TOWARD THE STATIONARY ELECTRODE WITH A PREDETERMINED PRESSURE TO CLAMP A WORKPIECE THEREBETWEEN, AND MEANS FOR PASSING AN ELECTRODE CURRENT THROUGH THE ELECTRODES AFTER A PREDETERMINED PRESSURE HAS BEEN ESTABLISHED ON THE ELECTRODES, SAID ELECTROMAGNETIC MEANS INCLUDING MEANS FOR EXERTING A LIFTING FORCE ON THE SPINDLE AFTER THE WELDING OPERATION TO RELEASE THE WORKPIECE FROM BETWEEN THE ELECTRODES.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |