US3193269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame hardening mechanism
Assignee: Allied Healthcare Products Inc
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Filing: 1962-11-09
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Granted: 1965-07-06
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Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 George L Hammon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:38
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/06; C21D1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A MACHINE FOR FLAME HARDENING THE CONTINUOUS PERIPHERY OF A CIRCULAR METALLIC OBJECT COMPRISING, IN COMBINATION WITH MEANS FOR ROTATABLY MOUNTING SAID OBJECT, (A) A TORCH, (B) MEANS FOR HOLDING THE TORCH IN A FIXED POSITION, (C) MEANS FOR ROTATING SAID OBJECT RELATIVE TO THE TORCH TO FLAME HARDEN A CONTINUOUS PERIPHERAL SURFACE AREA OF THE OBJECT, (D) A SHIELD TO PREVENT A TORCH FLAME FROM CONTACTING SAID OBJECT, AND (E) MEANS FOR DETACHABLY FIXING SAID SHIELD IN A FIRST AND A SECOND POSITION ON SAID OBJECT FOR ROTATION THEREWITH, SAID SHIELD BEING OPERABLE IN THE FIRST FIXED POSITION TO PREVENT SAID TORCH FLAME FROM CONTACTING A FIRST SELECTED AREA OF THE OBJECT AND BEING OPERABLE IN THE SECOND FIXED POSITION TO PREVENT SAID TORCH FLAME FROM CONTACTING A PREVIOUSLY FLAME TREATED AREA OF THE OBJECT,
Claim 2
Dependent Claim
136 words
A MACHINE FOR FLAME HARDENING THE CONTINUOUS PERIPHERY OF A CIRCULAR METALLIC OBJECT COMPRISING, IN COMBINATION WITH MEANS FOR ROTATABLY MOUNTING SAID OBJECT, (A) A TORCH, (B) MEANS FOR HOLDING THE TORCH IN A FIXED POSITION, (C) MEANS FOR ROTATING SAID OBJECT RELATIVE TO THE TORCH TO FLAME HARDEN A CONTINUOUS PERIPHERAL SURFACE AREA OF THE OBJECT, (D) A SHIELD TO PREVENT A TORCH FLAME FROM CONTACTING SAID OBJECT, AND (E) MEANS FOR DETACHABLY FIXING SAID SHIELD IN A FIRST AND A SECOND POSITION ON SAID OBJECT FOR ROTATION THEREWITH, SAID SHIELD BEING OPERABLE IN THE FIRST FIXED POSITION TO PREVENT SAID TORCH FLAME FROM CONTACTING A FIRST SELECTED AREA OF THE OBJECT AND BEING OPERABLE IN THE SECOND FIXED POSITION TO PREVENT SAID TORCH FLAME FROM CONTACTING A PREVIOUSLY FLAME TREATED AREA OF THE OBJECT,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |