US4273002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face gear assembly
Assignee: Individual
•
Filing: 1979-03-12
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Granted: 1981-06-16
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Expires: 1999-03-12
Abstract
Abstract In a face gear assembly comprising a face gear and a pinion engaged therewith, the crest or top land of each tooth of the face gear is so formed as to touch the root surface or bottom land between two adjoining teeth of the pinion which are in mesh with the tooth, whereby the mutual engaging relationship of the face gear and the pinion can be regularly maintained.
Inventors
- 👤 Hiroomi Ogasawara
- 👤 Masaomi Ogasawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:15
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H55/00; F16H55/02; F16H55/08; F16H55/0853; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19949; Y10T74/19963; Y10T74/19972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A face gear assembly comprising a face gear having teeth arranged in annular disposition and directed in the direction parallel to the rotational axis of the face gear, each of said teeth having a substantially flat crest, and a pinion having teeth in engagement with said teeth of the face gear, said pinion having a root surface between two adjoining teeth thereof, said crest being formed to contact the root surface between two adjoining teeth of the pinion which are in mesh with the tooth of said crest.
Claim 2
Dependent Claim
88 words
A face gear assembly comprising a face gear having teeth arranged in annular disposition and directed in the direction parallel to the rotational axis of the face gear, each of said teeth having a substantially flat crest, and a pinion having teeth in engagement with said teeth of the face gear, said pinion having a root surface between two adjoining teeth thereof, said crest being formed to contact the root surface between two adjoining teeth of the pinion which are in mesh with the tooth of said crest.
References Cited (Backward Citations)
US264483A
Cited
FR487300A
Cited
US1425144A
Cited
US1694027A
Cited
US1683758A
Cited
US1833159A
Cited
GB725982A
Cited
US3524361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |