Patent US2336529A successfully refreshed from Google Patents.
Patent US3119289A successfully refreshed from Google Patents.
US3119289A
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Method for planishing a pair of seam-joined metal sheets
Assignee: NATIONAL ELECTRIC WELDING MACHINES CO
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Filing: 1960-07-01
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Granted: 1964-01-28
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Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Harold E Bach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:35
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/3036; B21; B21B; B21B15/00; B21B15/0085; B21D; B21D39/00; B21D39/03; B21B27/00; B21B27/005; Y; Y10; Y10S; Y10S29/00; Y10S29/023; Y10S72/00; Y10S72/703; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A PLANISHING PROCESS FOR SEAM-WELDED SHEETS COMPRISING THE STEPS: APPLYING A PRESSURE SUBSTANTIALLY UNIFORMLY TO ONE SURFACE OF THE AREA OF SAID SHEETS AROUND AND INCLUDING THE SEAM AND APPLYING DIFFERENTIAL PRESSURES AT SPACED ZONES TO THE OPPOSITE SURFACE OF SAID AREA, WHEREBY TO RENDER SAID ONE SIDE SMOOTH AND TO PERMIT EXCESS METAL FROM WITHIN SAID SEAM AREA TO FLOW BETWEEN SAID SPACED ZONES AND ESCAPE FROM SAID AREA.
Claim 2
Dependent Claim
71 words
IN A PLANISHING PROCESS FOR SEAM-WELDED SHEETS COMPRISING THE STEPS: APPLYING A PRESSURE SUBSTANTIALLY UNIFORMLY TO ONE SURFACE OF THE AREA OF SAID SHEETS AROUND AND INCLUDING THE SEAM AND APPLYING DIFFERENTIAL PRESSURES AT SPACED ZONES TO THE OPPOSITE SURFACE OF SAID AREA, WHEREBY TO RENDER SAID ONE SIDE SMOOTH AND TO PERMIT EXCESS METAL FROM WITHIN SAID SEAM AREA TO FLOW BETWEEN SAID SPACED ZONES AND ESCAPE FROM SAID AREA.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |