Patent US3196244A successfully refreshed from Google Patents.
US3196244A
Expired / Lapsed
US
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Inductor for the surface heating of gear wheels
Assignee: Deutsche Edelstahlwerke AG
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Filing: 1962-12-20
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Granted: 1965-07-20
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Wulf Karl Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:19
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/32; C21D1/00; C21D1/06; C21D1/09; C21D1/10; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN INDUCTOR FOR EMBRACING A GEAR WHEEL FOR ACCURATELY SURFACE HARDENING THE CONTOURS THEREOF INCLUDING DEFINED SECTIONS WHICH LIE SUBSTANTIALLY ON AN IMAGINARY CYLINDER AND DISPOSED OBLIQUELY TO THE AXIS OF THE INDUCTOR, SAID SECTIONS BEING IN CIRCUMFERENTIALLY SPACED RELATION TO ONE ANOTHER AND PERMITTING ROTATION OF THE GEAR WHEEL WITHIN THE INDUCTOR WITH THE SAID SECTION ACROSS THE WIDTH OF THE WHEEL AND IN SUCH VICINITY TO THE TEETH THEREOF AS TO PERMIT INDUCTIVE HEATING THEREOF AND HARDENING.
Claim 2
Dependent Claim
79 words
AN INDUCTOR FOR EMBRACING A GEAR WHEEL FOR ACCURATELY SURFACE HARDENING THE CONTOURS THEREOF INCLUDING DEFINED SECTIONS WHICH LIE SUBSTANTIALLY ON AN IMAGINARY CYLINDER AND DISPOSED OBLIQUELY TO THE AXIS OF THE INDUCTOR, SAID SECTIONS BEING IN CIRCUMFERENTIALLY SPACED RELATION TO ONE ANOTHER AND PERMITTING ROTATION OF THE GEAR WHEEL WITHIN THE INDUCTOR WITH THE SAID SECTION ACROSS THE WIDTH OF THE WHEEL AND IN SUCH VICINITY TO THE TEETH THEREOF AS TO PERMIT INDUCTIVE HEATING THEREOF AND HARDENING.
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Cited
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Cited
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |