US3121948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction welding
Assignee: AMF Inc
•
Filing: 1961-03-29
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Granted: 1964-02-25
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hollander Milton Bernard
- 👤 Camps-Campins Michael Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:02
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12; B23K35/00; B23K35/001; B23K35/002; B23K35/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE PROCESS OF FRICTION WELDING A FIRST AND A SECOND WORKPIECE, EACH RESPECTIVELY OF A FIRST AND SECOND DIFFERENT METAL, COMPRISING THE STEPS OF FORMING A THIN LAYER BETWEEN THE WORKPIECES OF A THIRD DIFFERENT METAL SOLUBLE IN THE METALS OF EACH OF THE WORKPIECES, RAPIDLY ROTATING SAID WORKPIECES RELATIVE TO EACH OTHER, FORCING THE WORKPIECE RELATIVE ROTATION OF THE WORKPIECES WHILE CONTINUING TO FORCE THE WORKPIECE TOGETHER AND THUS FORMING A WELD IN WHICH THE THIRD METAL IS AT LEAST PARTIALLY ALLOYED WITH EACH OF THE OTHER METALS.
Claim 2
Dependent Claim
89 words
THE PROCESS OF FRICTION WELDING A FIRST AND A SECOND WORKPIECE, EACH RESPECTIVELY OF A FIRST AND SECOND DIFFERENT METAL, COMPRISING THE STEPS OF FORMING A THIN LAYER BETWEEN THE WORKPIECES OF A THIRD DIFFERENT METAL SOLUBLE IN THE METALS OF EACH OF THE WORKPIECES, RAPIDLY ROTATING SAID WORKPIECES RELATIVE TO EACH OTHER, FORCING THE WORKPIECE RELATIVE ROTATION OF THE WORKPIECES WHILE CONTINUING TO FORCE THE WORKPIECE TOGETHER AND THUS FORMING A WELD IN WHICH THE THIRD METAL IS AT LEAST PARTIALLY ALLOYED WITH EACH OF THE OTHER METALS.
References Cited (Backward Citations)
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Cited
US132900A
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US2094483A
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US2354267A
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GB572789A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |