US2744032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for applying a hard alloy coating to the seating surfaces of valves for internal combustion engines
Assignee: Austin Motor Co Ltd
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Filing: 1953-07-13
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Granted: 1956-05-01
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Expires: 1973-07-13
Abstract
No abstract record available.
Inventors
- 👤 Frank W W Highfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:59
CPC Classifications
C; C23; C23C; C23C26/00; C23C26/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF APPLYING A HARD ALLOY COATING TO THE SEATING SURFACE OF AN INTERNAL COMBUSTION ENGINE VALVE, WHICH COMPRISES APPLYING THE HARD ALLOY IN SOLID FORM TO THE SEALING SURFACE OF THE VALVE, AND THEN APPLYING HEAT BY ELECTRIC HIGH FREQUENCY INDUCTION HEATING TO SAID ALLOY AND TO SAID VALVE TO MELT SAID ALLOY AND TO EFFECT SKIN HEATING OF THE SEATING SURFACE OF SAID VALVE TO CAUSE FUSION OR WELDING TO TAKE PLACE BETWEEN SAID ALLOY AND SAID SEATING SURFACE OF SAID VALVE.
Claim 2
Independent Claim
85 words
THE METHOD OF APPLYING A HARD ALLOY COATING TO THE SEATING SURFACE OF AN INTERNAL COMBUSTION ENGINE VALVE, WHICH COMPRISES APPLYING THE HARD ALLOY IN SOLID FORM TO THE SEALING SURFACE OF THE VALVE, AND THEN APPLYING HEAT BY ELECTRIC HIGH FREQUENCY INDUCTION HEATING TO SAID ALLOY AND TO SAID VALVE TO MELT SAID ALLOY AND TO EFFECT SKIN HEATING OF THE SEATING SURFACE OF SAID VALVE TO CAUSE FUSION OR WELDING TO TAKE PLACE BETWEEN SAID ALLOY AND SAID SEATING SURFACE OF SAID VALVE.
References Cited (Backward Citations)
US486496A
Cited
US488527A
Cited
US1934901A
Cited
US2277571A
Cited
US2481962A
Cited
US2502373A
Cited
US2612443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |