Patent US4495405A successfully refreshed from Google Patents.
Patent US3766795A successfully refreshed from Google Patents.
US3766795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winch power module with gear disconnect
Assignee: Dutton Lainson Co
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Filing: 1972-03-06
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Granted: 1973-10-23
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Expires: 1992-03-06
Abstract
Abstract An electrically powered module for converting a hand winch from which the hand winch handle has been removed into an electrically operated winch. The power module includes an electric motor having a drive gear for driving the gears of a gear train. The gear train is housed between parallel, spaced plates, the motor being attached to one plate and the hand winch to the opposite plate. The drive gear and the winch drive shaft both extend to a position intermediate the plates and are connected by the gear train. A coil spring brake is provided as well as means for disengaging transmission by the gear train of the driving force of the motor drive shaft to the winch drive shaft.
Inventors
- 👤 W Priest
- 👤 A Weigand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:20
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/02; B66D1/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
257 words
An electric power module for operating a winch, said winch having a winch drive shaft, said module comprising, in combination: a gear housing including first and second spaced parallel plates, a motor attached to said first plate having an output shaft extending transverse to said first plate between said plates, a spur gear attached to said motor output shaft, a separate shaft slidably mounted through first and second bushings in said first and second plates respectively, said separate shaft parallel to said motor shaft and extending outside said first plate, separate spur gear means on said separate shaft to mesh with said motor spur gear, a handle on the extension of said separate shaft outside said first plate, a spring interposed between said first plate and said separate spur gear for biasing said separate shaft and gear means in a first direction, a pin extending transversely to said separate shaft outside said first plate, said pin positioned to engage a slot in said first bushing and limit translation of said shaft in the first direction, said winch drive shaft extending between said plates and having drive shaft gear means thereon driven by said separate gear means, and an outer bushing surface on said first bushing for engaging said pin and holding said separate shaft and gear means disengaged from driving engagement with said drive shaft gear means, said pin being engaged with said first bushing surface by translation of said handle in a direction opposite the first direction and rotation of said pin from said bushing slot.
Claim 2
Dependent Claim
257 words
An electric power module for operating a winch, said winch having a winch drive shaft, said module comprising, in combination: a gear housing including first and second spaced parallel plates, a motor attached to said first plate having an output shaft extending transverse to said first plate between said plates, a spur gear attached to said motor output shaft, a separate shaft slidably mounted through first and second bushings in said first and second plates respectively, said separate shaft parallel to said motor shaft and extending outside said first plate, separate spur gear means on said separate shaft to mesh with said motor spur gear, a handle on the extension of said separate shaft outside said first plate, a spring interposed between said first plate and said separate spur gear for biasing said separate shaft and gear means in a first direction, a pin extending transversely to said separate shaft outside said first plate, said pin positioned to engage a slot in said first bushing and limit translation of said shaft in the first direction, said winch drive shaft extending between said plates and having drive shaft gear means thereon driven by said separate gear means, and an outer bushing surface on said first bushing for engaging said pin and holding said separate shaft and gear means disengaged from driving engagement with said drive shaft gear means, said pin being engaged with said first bushing surface by translation of said handle in a direction opposite the first direction and rotation of said pin from said bushing slot.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |