Patent US3176254A successfully refreshed from Google Patents.
US3176254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seam-welding wheel bearing
Assignee: NATIONAL ELECTRIC WELDING MACHINES CO
•
Filing: 1962-01-25
•
Granted: 1965-03-30
•
Expires: 1982-01-25
Abstract
No abstract record available.
Inventors
- 👤 Fisher Simon
- 👤 William L Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:05
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/36; B23K11/362; B23K11/366
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
IN A RESISTANCE-WELDING MACHINE HAVING A CURRENTCONDUCTING FRAME MEMBER AND A SHAFT ROTATABLY WITH RESPECT TO SAID FRAME MEMBER, MEANS FOR CONDUCTING ELECTRIC CURRENT FROM SAID FRAME MEMBER TO SAID SHAFT, COMPRISING IN COMBINATION: A SPACED PAIR OF END MEMBERS FIXED WITH RESPECT TO SAID FRAME MEMBER; A BEARING SUPPORTED AT THE AXIALLY OUTER END OF EACH OF SAID END MEMBERS FOR ROTATABLY SUPPORTING SAID SHAFT; CONTACT SHOE MEANS MOUNTED ON SAID SHAFT, THE INTERNAL SURFACE OF SAID CONTACT SHOE MEANS BEING IN CONTACT WITH THE CENTRAL SURFACE OF SAID SHAFT OVER A LARGE AREA, SAID SHOE MEANS HAVING EXTERNAL SURFACES TAPERING AXIALLY TOWARD THE OPPOSITE AXIAL ENDS THEREOF; WEDGE MEANS SURROUNDING AND ENGAGING THE RESPECTIVE TAPERED SURFACES OF SAID CONTACT SHOE MEANS; AND PRESSURE-APPLYING MEANS RECEIVED BETWEEN THE AXIALLY INNER END OF EACH OF SAID END MEMBERS AND THE ADJA-
References Cited (Backward Citations)
US2625639A
Cited
US2730600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |