Patent US4677870A successfully refreshed from Google Patents.
US4677870A
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Forged spur gear with web connected teeth
Assignee: Individual
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Filing: 1985-09-30
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Granted: 1987-07-07
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Expires: 2005-09-30
Abstract
Abstract A forged metal spur gear is configured with one lateral face extremity portion extended to the addendum circle of the gear teeth for proving increased load carrying capacity to a gear of a given size.
Inventors
- 👤 Ebrahaem Alshareedah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:05
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/08; F16H2055/0893; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49474; Y10T74/00; Y10T74/19; Y10T74/19851; Y10T74/19949; Y10T74/19963
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
86 words
A forged steel spur gear having constant pitch diameter radial teeth disposed parallel to the gear axis and configured with a lateral face extremity portion extending as a continuous web integral with gear teeth from the root of said teeth to substantially the addendum circle at one lateral face only of said gear, enabling said gear to be removed from forging dies in conventional manner, the forged metal of said gear being densified and and refined throughout and of geeater strength and resilence than as-cast metal.
Claim 2
Dependent Claim
86 words
A forged steel spur gear having constant pitch diameter radial teeth disposed parallel to the gear axis and configured with a lateral face extremity portion extending as a continuous web integral with gear teeth from the root of said teeth to substantially the addendum circle at one lateral face only of said gear, enabling said gear to be removed from forging dies in conventional manner, the forged metal of said gear being densified and and refined throughout and of geeater strength and resilence than as-cast metal.
Claim 3
Dependent Claim
16 words
The spur gear of claim 1 in which said web is greater than 0.1875 inch thick.
References Cited (Backward Citations)
CA614844A
Cited
US4106360A
Cited
US4209086A
Cited
US4308760A
Cited
US4433568A
Cited
US4510788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |