Patent US3133185A successfully refreshed from Google Patents.
US3133185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction heating apparatus
Assignee: Deutsche Edelstahlwerke AG
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Filing: 1961-11-01
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Granted: 1964-05-12
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Alf Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:48
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN INDUCTION COIL COMPRISING AN INDUCTOR ENCLOSED BY OR EMBEDDED IN A CAST OR PROTECTIVE BODY TO FORM A UNIT PROVIDING INNER AND OUTER FACES AND END FACES AND SUITABLE FOR THE PASSAGE THROUGH ITS INTERIOR OF THE WORK THAT IS TO BE TREATED, AT LEAST ONE SAID END FACE OF THE UNIT SLOPING THROUGHOUT ITS FULL DISTANCE FROM SAID INNER FACE TO THE SAID OUTER FACE SO THAT WHEN THE UNIT IS IN A VERTICAL POSITION WITH THE SAID END FACE LOWERMOST, THE OUTER EDGE OF SAID END FACE WILL BE OUTSIDE THE VERTICAL OUTSIDE PLANE OF SAID INDUCTOR AND AT A LOWER LEVEL THAN THE INNER EDGE TO CAUSE CONDENSATION ON ANY OF SAID FACES TO DRIP FROM SAID BODY AT SAID OUTER EDGE.
Claim 2
Dependent Claim
126 words
AN INDUCTION COIL COMPRISING AN INDUCTOR ENCLOSED BY OR EMBEDDED IN A CAST OR PROTECTIVE BODY TO FORM A UNIT PROVIDING INNER AND OUTER FACES AND END FACES AND SUITABLE FOR THE PASSAGE THROUGH ITS INTERIOR OF THE WORK THAT IS TO BE TREATED, AT LEAST ONE SAID END FACE OF THE UNIT SLOPING THROUGHOUT ITS FULL DISTANCE FROM SAID INNER FACE TO THE SAID OUTER FACE SO THAT WHEN THE UNIT IS IN A VERTICAL POSITION WITH THE SAID END FACE LOWERMOST, THE OUTER EDGE OF SAID END FACE WILL BE OUTSIDE THE VERTICAL OUTSIDE PLANE OF SAID INDUCTOR AND AT A LOWER LEVEL THAN THE INNER EDGE TO CAUSE CONDENSATION ON ANY OF SAID FACES TO DRIP FROM SAID BODY AT SAID OUTER EDGE.
References Cited (Backward Citations)
US2848566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |