US3269002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction welding
Assignee: AMF Inc
•
Filing: 1964-04-30
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Granted: 1966-08-30
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Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Hollander Milton Bernard
- 👤 Rosenberg Edgar Lynn Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:29
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A METHOD OF FRICTION WELDING METAL WORKPIECES IN WHICH: (A) A FIRST WORKPIECE IS ROTATIONALLY DRIVEN THROUGH A RELEASABLE CONNECTION BY A DRIVE MEANS; (B) A SECOND WORKPIECE, AXIALLY ALIGNED THEREWITH, IS ROTATIONALLY FIXED; (C) THE WORKPIECE ARE ENGAGED AND RUBBED AGAINST EACH OTHER UNDER PRESSURE UNTIL THE ENGAGED SURFACES REACH A WELDING TEMPERATURE; AND (D) THE RUBBING IS STOPPED,
Claim 2
Dependent Claim
61 words
IN A METHOD OF FRICTION WELDING METAL WORKPIECES IN WHICH: (A) A FIRST WORKPIECE IS ROTATIONALLY DRIVEN THROUGH A RELEASABLE CONNECTION BY A DRIVE MEANS; (B) A SECOND WORKPIECE, AXIALLY ALIGNED THEREWITH, IS ROTATIONALLY FIXED; (C) THE WORKPIECE ARE ENGAGED AND RUBBED AGAINST EACH OTHER UNDER PRESSURE UNTIL THE ENGAGED SURFACES REACH A WELDING TEMPERATURE; AND (D) THE RUBBING IS STOPPED,
References Cited (Backward Citations)
GB572789A
Cited
US2956611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |