US3864987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change speed gearing
Assignee: Individual
•
Filing: 1973-10-11
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Granted: 1975-02-11
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Expires: 1993-10-11
Abstract
Abstract A change speed gearing that includes an input or drive shaft together with means for rotating the drive shaft, as well as output shaft means, and intermeshing gears for operatively connecting the output shaft means to the input or drive shaft.
Inventors
- 👤 Guiseppe Vigneri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:45
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/001; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19051; Y10T74/19056; Y10T74/19219; Y10T74/19358; Y10T74/19367
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
In a change speed gearing, a casing including spaced parallel wall members, divider plates interposed between said wall members, an input drive shaft mounted in said casing, a pair of spaced apart sleeves mounted on said drive shaft, a plurality of output shafts journaled in said casing, and a gear train including coacting shafts and gears for selectively operatively connecting said drive shaft to said output shafts, and means for selectively modifying the output-input speed of the respective drive and output shafts.
Claim 2
Dependent Claim
82 words
In a change speed gearing, a casing including spaced parallel wall members, divider plates interposed between said wall members, an input drive shaft mounted in said casing, a pair of spaced apart sleeves mounted on said drive shaft, a plurality of output shafts journaled in said casing, and a gear train including coacting shafts and gears for selectively operatively connecting said drive shaft to said output shafts, and means for selectively modifying the output-input speed of the respective drive and output shafts.
Claim 3
Dependent Claim
16 words
A device as claimed in claim 1 and further including a locking mechanism providing a brake.
Claim 4
Dependent Claim
23 words
A device as claimed in claim 1 wherein the means for selectively modifying the output-input speed of the shafts comprises intermeshing bevel gears.
Claim 5
Dependent Claim
31 words
A device as claimed in claim 1 wherein the means for selectively modifying the output-input speed of the shafts comprises intermeshing bevel gears, and a crank for selectively rotating said gears.
Claim 6
Dependent Claim
18 words
A device as claimed in claim 1 and further including a locking braking means for the gear train.
Claim 7
Dependent Claim
37 words
A device as claimed in claim 1 and further including a locking braking means for the gear train, said locking braking means comprising a movable keeper for selectively engaging notches in a gear of the gear train.
Claim 8
Dependent Claim
57 words
A device as claimed in claim 1 and further including a locking braking means that includes a movablE keeper that is mounted for movement into and out of engagement with notches in a gear of the gear train, and resilient means for normally urging and biasing the keeper into engagement with notches of the respective adjacent gear.
References Cited (Backward Citations)
US3564935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |