US3337200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for hardening the axial end of a workpiece
Assignee: Ohio Crankshaft Co
•
Filing: 1965-03-08
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Granted: 1967-08-22
•
Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Norbert R Balzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/06; C21D1/09; C21D1/10; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN INDUCTION HEATING APPARATUS FOR HARDENING THE AXIAL END OF A WORKPIECE, SAID APPARATUS COMPRISING: AN INDUCTOR HAVING A CENTRAL OPENING, FIRST AND SECOND AXIAL ENDS, AND ENERGIZING LEADS ADAPTED TO BE CONNECTED ONTO A HIGH FREQUENCY POWER SOURCE; A LOCATOR ABUTMENT; MEANS ADJACENT SAID FIRST AXIAL END FOR MOVING SAID ABUTMENT BETWEEN A FIRST POSITION WHERE SAID ABUTMENT EXTENDS THROUGH SAID OPENING AND PROTRUDES FROM SAID SECOND AXIAL END A PREDETERMINED DISTANCE TO FORM A LOCATOR FOR THE AXIAL END OF SAID WORKPIECE WITH RESPECT TO SAID SECOND AXIAL END OF SAID INDUCTOR AND A SECOND POSITION WHERE SIAD ABUTMENT IS RETRACTED FROM SAID FIRST POSITION; AND. MEANS FOR INTRODUCING QUENCHING FLUID INTO SAID INDUCTOR OPENING WHEN SAID ABUTMENT IS IN SAID SECOND POSITION WHEREBY SAID FLUID FLOWS THROUGH SAID OPENING AND ONTO SAID AXIAL END OF SAID WORKPIECE.
Claim 2
Dependent Claim
140 words
AN INDUCTION HEATING APPARATUS FOR HARDENING THE AXIAL END OF A WORKPIECE, SAID APPARATUS COMPRISING: AN INDUCTOR HAVING A CENTRAL OPENING, FIRST AND SECOND AXIAL ENDS, AND ENERGIZING LEADS ADAPTED TO BE CONNECTED ONTO A HIGH FREQUENCY POWER SOURCE; A LOCATOR ABUTMENT; MEANS ADJACENT SAID FIRST AXIAL END FOR MOVING SAID ABUTMENT BETWEEN A FIRST POSITION WHERE SAID ABUTMENT EXTENDS THROUGH SAID OPENING AND PROTRUDES FROM SAID SECOND AXIAL END A PREDETERMINED DISTANCE TO FORM A LOCATOR FOR THE AXIAL END OF SAID WORKPIECE WITH RESPECT TO SAID SECOND AXIAL END OF SAID INDUCTOR AND A SECOND POSITION WHERE SIAD ABUTMENT IS RETRACTED FROM SAID FIRST POSITION; AND. MEANS FOR INTRODUCING QUENCHING FLUID INTO SAID INDUCTOR OPENING WHEN SAID ABUTMENT IS IN SAID SECOND POSITION WHEREBY SAID FLUID FLOWS THROUGH SAID OPENING AND ONTO SAID AXIAL END OF SAID WORKPIECE.
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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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |