Patent NL61087C successfully refreshed from Google Patents.
Patent US3206893A successfully refreshed from Google Patents.
US3206893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear honing tool
Assignee: Nachi Machining Technology Co
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Filing: 1963-04-09
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Granted: 1965-09-21
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 William A Rumbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:07
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A GEAR HONE ADAPTED FOR ROTATION AT CROSSED AXES AND IN TIGHT MESH WITH AN EXTERNAL GEAR COMPRISING AN EXTERNAL GEAR-LIKE BODY HAVING AN ANNULAR TOOTHED PORTION PROVIDED WISTH A SERIES OF TEETH OF GENERALLY INVOLUTE CONFIGURATION CONJUGATE TO THE REQUIRED TOOTH FORM OF THE GEAR TO BE FINISHED, THE SIDE SURFACE PORTINS OF THE TEETH OF SAID HONE BEING OF A RELATIVELY HARD BUT SLIGHTLY YIELDABLE HIGHLY RESILIENT PLASTIC MATERIAL HAVING ABRASIVE PARTICLES EMBEDDED THEREIN, THE SIDE SURFACES OF EACH TOOTH HAVING TWO INWARDLY RELIEVED GENERALLY TRIANGULAR ZONES AT THE TOP CORNER PORTIONS AT EACH SIDE THEREOF, SAID ZONES BEING BOUNDED BY LINES WHICH EXTEND FROM POINTS AT THE CREST OF SAID TEETH ADJACENT TO BUT SPACED SLIGHTLY FROM THE MID-POINTS THEREOF TO THE ADJACENT END SURFACES THEREOF AND INTERSECTING SAID END SURFACES CLOSELY ADJACENT TO THE PITCH CIRCLE OF THE TEETH.
Claim 2
Dependent Claim
143 words
A GEAR HONE ADAPTED FOR ROTATION AT CROSSED AXES AND IN TIGHT MESH WITH AN EXTERNAL GEAR COMPRISING AN EXTERNAL GEAR-LIKE BODY HAVING AN ANNULAR TOOTHED PORTION PROVIDED WISTH A SERIES OF TEETH OF GENERALLY INVOLUTE CONFIGURATION CONJUGATE TO THE REQUIRED TOOTH FORM OF THE GEAR TO BE FINISHED, THE SIDE SURFACE PORTINS OF THE TEETH OF SAID HONE BEING OF A RELATIVELY HARD BUT SLIGHTLY YIELDABLE HIGHLY RESILIENT PLASTIC MATERIAL HAVING ABRASIVE PARTICLES EMBEDDED THEREIN, THE SIDE SURFACES OF EACH TOOTH HAVING TWO INWARDLY RELIEVED GENERALLY TRIANGULAR ZONES AT THE TOP CORNER PORTIONS AT EACH SIDE THEREOF, SAID ZONES BEING BOUNDED BY LINES WHICH EXTEND FROM POINTS AT THE CREST OF SAID TEETH ADJACENT TO BUT SPACED SLIGHTLY FROM THE MID-POINTS THEREOF TO THE ADJACENT END SURFACES THEREOF AND INTERSECTING SAID END SURFACES CLOSELY ADJACENT TO THE PITCH CIRCLE OF THE TEETH.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |