US3144702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing crankshafts from separate components by flash butt welding
Assignee: Theodor Wuppermann GmbH
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Filing: 1961-09-25
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Granted: 1964-08-18
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 Wuppermann August Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:09
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/10; B; B23; B23K; B23K11/00; B23K11/04; F16C2226/00; F16C2226/30; F16C2226/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49286; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49904; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2174; Y10T74/2175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD OF MANUFACTURING CRANKSHAFTS COMPRISING THE STEPS OF MANUFACTURING A PLURALITY OF SEPARATE COMPONENTS EACH COMPRISING A CRANK WEB AND CRANK PIN PORTIONS PROJECTING FROM SAID CRANK WEB INTEGRAL THEREWITH AND EACH PIN PORTION HAVING A FREE END FACE; TIGHTLY FITTING TUBULAR BODIES OF WEAR-RESISTANT MATERIAL ON SAID CRANK PIN PORTIONS, RESPECTIVELY; AND WELDING TOGETHER SAID SEPARATE COMPONENTS AT SAID END FACES OF CORRESPONDING ONES OF THEIR CRANK PIN PORTIONS TO FORM A CRANKSHAFT HAVING BEARING CONTACT SURFACES FORMED BY SAID WEAR-RESISTANT MATERIAL.
Claim 2
Independent Claim
84 words
A METHOD OF MANUFACTURING CRANKSHAFTS COMPRISING THE STEPS OF MANUFACTURING A PLURALITY OF SEPARATE COMPONENTS EACH COMPRISING A CRANK WEB AND CRANK PIN PORTIONS PROJECTING FROM SAID CRANK WEB INTEGRAL THEREWITH AND EACH PIN PORTION HAVING A FREE END FACE; TIGHTLY FITTING TUBULAR BODIES OF WEAR-RESISTANT MATERIAL ON SAID CRANK PIN PORTIONS, RESPECTIVELY; AND WELDING TOGETHER SAID SEPARATE COMPONENTS AT SAID END FACES OF CORRESPONDING ONES OF THEIR CRANK PIN PORTIONS TO FORM A CRANKSHAFT HAVING BEARING CONTACT SURFACES FORMED BY SAID WEAR-RESISTANT MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |