US3127501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision electric welding head
Assignee: Wells Electronics Inc
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Filing: 1962-04-27
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Granted: 1964-03-31
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Mueller Andrew August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31; B23K11/318
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ELECTRIC WELDING DEVICE COMPRISING A PRIMARY FRAME, A SECOND FRAME SHIFTABLE ON SAID PRIMARY FRAME BETWEEN OPERATIVE AND INOPERATIVE POSITIONS, SPRING MEANS URGING SAID SECOND FRAME TO INOPERATIVE POSITION, ACTUATING MEANS FOR MOVING SAID SECOND FRAME TOWARD OPERATIVE POSITION, A REFERENCE SPRING CARRIED BY SAID SECOND FRAME, A REFERENCE SPRING LEVER PIVOTED TO SAID SECOND FRAME AND ENGAGED BY SAID REFERENCE SPRING, AN ELECTRODE LEVER PIVOTED TO SAID SECOND FRAME SPACED FROM THE PIVOT AXIS OF SAID REFERENCE SPRING LEVER, AN ELECTRODE CARRIED BY SAID ELECTRODE LEVER, AN ELECTRODE CARRIED BY SAID PRIMARY FRAME, AND ADJUSTABLE MEANS FOR VARYING THE EFFECTIVE SPRING PRESSURE OF SAID REFERENCE SPRING ACTING ON SAID LEVER WHEN SAID SECOND FRAME IS MOVED TO POSITION SAID ELECTRODES IN CLAMPING ENGAGEMENT WITH WORK TO BE WELDED.
Claim 2
Dependent Claim
130 words
AN ELECTRIC WELDING DEVICE COMPRISING A PRIMARY FRAME, A SECOND FRAME SHIFTABLE ON SAID PRIMARY FRAME BETWEEN OPERATIVE AND INOPERATIVE POSITIONS, SPRING MEANS URGING SAID SECOND FRAME TO INOPERATIVE POSITION, ACTUATING MEANS FOR MOVING SAID SECOND FRAME TOWARD OPERATIVE POSITION, A REFERENCE SPRING CARRIED BY SAID SECOND FRAME, A REFERENCE SPRING LEVER PIVOTED TO SAID SECOND FRAME AND ENGAGED BY SAID REFERENCE SPRING, AN ELECTRODE LEVER PIVOTED TO SAID SECOND FRAME SPACED FROM THE PIVOT AXIS OF SAID REFERENCE SPRING LEVER, AN ELECTRODE CARRIED BY SAID ELECTRODE LEVER, AN ELECTRODE CARRIED BY SAID PRIMARY FRAME, AND ADJUSTABLE MEANS FOR VARYING THE EFFECTIVE SPRING PRESSURE OF SAID REFERENCE SPRING ACTING ON SAID LEVER WHEN SAID SECOND FRAME IS MOVED TO POSITION SAID ELECTRODES IN CLAMPING ENGAGEMENT WITH WORK TO BE WELDED.
References Cited (Backward Citations)
US1988537A
Cited
US2253702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |