US3650341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowmobile with banking control
Assignee: Individual
•
Filing: 1970-01-06
•
Granted: 1972-03-21
•
Expires: 1990-01-06
Abstract
Abstract The skis are mounted on the lower ends of support columns or posts connected to a transverse beam pivoted on the centerline. In one modification the beam is a leaf spring and, when the steering column is turned, the control cages between the leaf spring and the ramps are moved in opposite directions to tilt the beam and retract the inside ski while moving the outside ski away from the body. This forces the body to bank or lean into the turn. In the other modification the beam is rigid and the turning motion is transmitted by a chain to jackscrews to tilt the beam.
Inventors
- 👤 Hans P Asmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
B; B62; B62B; B62B13/00; B62B13/02; B62B13/06; B62B13/08; B62M; B62M27/00; B62M27/02; B62M2027/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A snowmobile including a body having a drive track and front mounted skis for steering and provided with means for causing the body to bank during a turn, comprising, means mounting the skis on the body for steering movement and for movement towards and from the body, the mounting means for each ski including a post slidable relative to the body and rotatable to effect turning movement, said posts being interconnected by transverse beam means pivoted for rocking movement about an axis generally on the centerline of the body, steering means for imparting steering movement to the skis, means responsive to turning movement of the steering means to force the ski on the outside of the turn from the body while retracting the inside ski towards the body to force the body to bank or lean into the turn, the distance the skis are moved from and retracted towards the body being increased as the turning movement is increased.
Claim 2
Dependent Claim
159 words
A snowmobile including a body having a drive track and front mounted skis for steering and provided with means for causing the body to bank during a turn, comprising, means mounting the skis on the body for steering movement and for movement towards and from the body, the mounting means for each ski including a post slidable relative to the body and rotatable to effect turning movement, said posts being interconnected by transverse beam means pivoted for rocking movement about an axis generally on the centerline of the body, steering means for imparting steering movement to the skis, means responsive to turning movement of the steering means to force the ski on the outside of the turn from the body while retracting the inside ski towards the body to force the body to bank or lean into the turn, the distance the skis are moved from and retracted towards the body being increased as the turning movement is increased.
Claim 3
Dependent Claim
21 words
A snowmobile according to claim 1 in which the means responsive to turning movement controls the tilt of the beam means.
Claim 4
Dependent Claim
37 words
A snowmobile according to claim 2 in which the means controlling the tilt of the beam means includes adjustable support means engaging the beam means on opposite sides of said axis and actuated by the steering means.
Claim 5
Dependent Claim
24 words
A snowmobile according to claim 3 in which the adjustable support means on each side includes a jackscrew and the jackscrews are oppositely pitched.
Claim 6
Dependent Claim
29 words
A snowmobile according to claim 4 including a sprocket on each jackscrew and a chain engaging the sprockets and actuated by the steering means to actuate the jackscrews equally.
Claim 7
Dependent Claim
22 words
A snowmobile according to claim 2 in which the beam means is tilted by a screw device actuated by the steering means.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |