US3777831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dirigible system for snowmobiles
Assignee: Individual
•
Filing: 1972-04-03
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Granted: 1973-12-11
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Expires: 1992-04-03
Abstract
Abstract A snowmobile comprising a body for supporting a driver, a pair of skis mounted in parallel relation to support at least a portion of said body, steering mechanism connected to said skis and operable to displace said skis in a manner to provide directional control for said snowmobile, and means actuated by said steering mechanism for displacing said body to shift the weight of the driver toward the direction of a desired turn. Method and several forms of apparatus are disclosed.
Inventors
- 👤 D Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:14
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A snowmobile comprising: a body; a transverse beam connected to the forward under side of the body, said beam terminating at each end in journal means; each journal means comprising a sleeve extending upwardly and outwardly; bracket means rotatably joined to each sleeve means and also extending upwardly and outwardly; a pair of skiis disposed generally beneath the respective bracket means; suspension means spanning between each ski and the adjacent bracket means; steering means to turn the snowmobile, said steering means comprising linkage joined to each bracket means oppositely rotating the respective bracket means during a turn causing (a) the outside ski to move down and out from the snowmobile, (b) the inside ski to move up and in toward the snowmobile and (c) tilting the body inwardly thereby shifting the weight of the driver and the weight of the snowmobile in the direction of the turn.
Claim 2
Dependent Claim
147 words
A snowmobile comprising: a body; a transverse beam connected to the forward under side of the body, said beam terminating at each end in journal means; each journal means comprising a sleeve extending upwardly and outwardly; bracket means rotatably joined to each sleeve means and also extending upwardly and outwardly; a pair of skiis disposed generally beneath the respective bracket means; suspension means spanning between each ski and the adjacent bracket means; steering means to turn the snowmobile, said steering means comprising linkage joined to each bracket means oppositely rotating the respective bracket means during a turn causing (a) the outside ski to move down and out from the snowmobile, (b) the inside ski to move up and in toward the snowmobile and (c) tilting the body inwardly thereby shifting the weight of the driver and the weight of the snowmobile in the direction of the turn.
Claim 3
Dependent Claim
13 words
The snowmobile of claim 1 wherein each suspension means comprise leaf spring means.
Claim 4
Dependent Claim
147 words
A snowmobile steering system comprising: a transverse beam adapted to be connected to the forward under side of a frame of a snowmobile, said beam terminating at each end in journal means; each journal means comprising a sleeve extending upwardly and outwardly; bracket means rotatably joined to each sleeve and also extending upwardly and outwardly; suspension means connected to each bracket means and adapted to be respectively connected to a ski; linkage means adapted to be connected to steering means of the snowmobile and also connected respectively to each bracket means oppositely rotating the respective bracket means during a turn causing (a) the outside ski to move down and out from the snowmobile, (b) the inside ski to move up and in toward the snowmobile and (c) tilting of the snowmobile thereby shifting the weight of the driver and the snowmobile in the direction of the turn.
Claim 5
Dependent Claim
147 words
A snowmobile steering system comprising: a transverse beam adapted to be connected to the forward under side of a frame of a snowmobile, said beam terminating at each end in journal means; each journal means comprising a sleeve extending upwardly and outwardly; bracket means rotatably joined to each sleeve and also extending upwardly and outwardly; suspension means connected to each bracket means and adapted to be respectively connected to a ski; linkage means adapted to be connected to steering means of the snowmobile and also connected respectively to each bracket means oppositely rotating the respective bracket means during a turn causing (a) the outside ski to move down and out from the snowmobile, (b) the inside ski to move up and in toward the snowmobile and (c) tilting of the snowmobile thereby shifting the weight of the driver and the snowmobile in the direction of the turn.
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |