Patent EP0305599A1 successfully refreshed from Google Patents.
US3235162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction welding
Assignee: AMF Inc
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Filing: 1962-07-02
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Granted: 1966-02-15
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Milton B Hollander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:24
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A METHOD OF WELDING AT LEAST TWO WORKPIECES BY FRICTION OF THE STEPS OF: (A) MOUNTING EACH WORKPIECE IN A WELDING DEVICE; (B) COUPLING ONE WORKPIECE THROUGH A CHUCK TO A FLYWHEEL; (C) DRIVING SAID FLYWHEEL BY A MOTOR; (D) RELATIVELY ROTATION AND RUBBING TOGETHER AND HEATING SAID WORKPIECES UNTIL WELDING HEAT SUFFICIENT TO MAKE A WELD IN DEVELOPED AT ENGAGED WORKPIECE SURFACES FROM ENERGY STORED IN SAID FLYWHEEL; (E) DRAWING MOST OF THE ENERGY USED TO HEAT THE WORKPIECES IN MAKING A WELD FROM ENERGY STORED IN SAID FLYWHEEL; (F) STOPPING ROTATION OF THE WORKPIECES; (G) PRESSING THE HEATED WORKPIECES TOGETHER; AND (H) COOLING THE WORKPIECES.
Claim 2
Dependent Claim
108 words
IN A METHOD OF WELDING AT LEAST TWO WORKPIECES BY FRICTION OF THE STEPS OF: (A) MOUNTING EACH WORKPIECE IN A WELDING DEVICE; (B) COUPLING ONE WORKPIECE THROUGH A CHUCK TO A FLYWHEEL; (C) DRIVING SAID FLYWHEEL BY A MOTOR; (D) RELATIVELY ROTATION AND RUBBING TOGETHER AND HEATING SAID WORKPIECES UNTIL WELDING HEAT SUFFICIENT TO MAKE A WELD IN DEVELOPED AT ENGAGED WORKPIECE SURFACES FROM ENERGY STORED IN SAID FLYWHEEL; (E) DRAWING MOST OF THE ENERGY USED TO HEAT THE WORKPIECES IN MAKING A WELD FROM ENERGY STORED IN SAID FLYWHEEL; (F) STOPPING ROTATION OF THE WORKPIECES; (G) PRESSING THE HEATED WORKPIECES TOGETHER; AND (H) COOLING THE WORKPIECES.
References Cited (Backward Citations)
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Cited
US2795039A
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US2944449A
Cited
US3093018A
Cited
US3134278A
Cited
FR1265578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |