Patent US3057604A successfully refreshed from Google Patents.
Patent US3109909A successfully refreshed from Google Patents.
US3109909A
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Adjustable inductor for induction heating
Assignee: Ohio Crankshaft Co
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Filing: 1960-01-27
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Granted: 1963-11-05
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Edward F Mcbrien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:37
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/365
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
IN COMBINATION WITH AN INDUCTION HEATING COIL ADAPTED TO HEAT THE SIDEWALLS OF AN OPENING IN A WORKPIECE, A CORE COMPRISING A FIRST CORE MEMBER RIGIDLY CONNECTED ONTO SAID HEATING COIL, A SECOND CORE MEMBER SUPPORTED BY SAID FIRST CORE MEMBER AND MEANS FOR ADJUSTING SAID SECOND CORE MEMBER WITH RESPECT TO SAID FIRST CORE MEMBER TO PROJECT SAID SECOND CORE MEMBER A PREDETERMINED DISTANCE BEYOND SAID HEATING COIL AND INTO SAID OPENING.
References Cited (Backward Citations)
US2018626A
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US2455875A
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US2471471A
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US2599086A
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US2647200A
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US2828397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |