US3205335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for accurately machining hobs and the like
Assignee: Star Cutter Co
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Filing: 1962-06-18
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Granted: 1965-09-07
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Glen E Johnston
- 👤 Meredith M Windsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:41
CPC Classifications
B; B23; B23H; B23H1/00; B23P; B23P15/00; B23P15/28; B23P15/34; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1715
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF ELECTRICAL DISCHARGE FORMING A GENERALLY CYLINDRICAL WORKPIECE HAVING CIRCUMFERENTIALLY SPACED ROWS OF IDENTICAL TEETH PROVIDING AN ELECTRODE MOVABLE TOWARD AND AWAY FROM SAID WORKPIECE AND HAVING A GROOVED SURFACE WHICH IS THE INVERSE SHAPE OF THE DESIRED SHAPE OF A ROW OF SAID TEETH, MOVING SAID ELECTRODE TOWARD SAID WORKPIECE TO A POSITION IN WHICH SAID ELECTRODE SURFACE IS IN OPERATIVE POSITON TO FORM ONE OF SAID ROWS TO A PREDETERMINED SHAPE, MOVING SAID ELECTRODE TO A POSITION SPACED FROM SAID WORKPIECE, ROTATING SAID WORKPIECE, MOVING SAID ELECTRODE TOWARD SAID WORKPIECE TO A POSITION IN WHICH SAID ELECTRODE SURFACE IS IN
Claim 2
Independent Claim
104 words
THE METHOD OF ELECTRICAL DISCHARGE FORMING A GENERALLY CYLINDRICAL WORKPIECE HAVING CIRCUMFERENTIALLY SPACED ROWS OF IDENTICAL TEETH PROVIDING AN ELECTRODE MOVABLE TOWARD AND AWAY FROM SAID WORKPIECE AND HAVING A GROOVED SURFACE WHICH IS THE INVERSE SHAPE OF THE DESIRED SHAPE OF A ROW OF SAID TEETH, MOVING SAID ELECTRODE TOWARD SAID WORKPIECE TO A POSITION IN WHICH SAID ELECTRODE SURFACE IS IN OPERATIVE POSITON TO FORM ONE OF SAID ROWS TO A PREDETERMINED SHAPE, MOVING SAID ELECTRODE TO A POSITION SPACED FROM SAID WORKPIECE, ROTATING SAID WORKPIECE, MOVING SAID ELECTRODE TOWARD SAID WORKPIECE TO A POSITION IN WHICH SAID ELECTRODE SURFACE IS IN
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |