US3674103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow vehicle anti-sway suspension system
Assignee: Individual
•
Filing: 1970-05-21
•
Granted: 1972-07-04
•
Expires: 1990-05-21
Abstract
Abstract The spring mounted two front steering skis of a snowmobile are stabilized by a torsion bar having its ends universally and slidably connected to the corresponding skis and its central portion carried in bearings by the body of the vehicle. The suspension for the rear axle has end sprockets carrying the track or belt and is stabilized by employing a torsion bar at the pivotal axis for the suspension arms. The torsion bar is rigidly secured to the arms.
Inventors
- 👤 Elmer Carl Kiekhaefer
- 👤 Winter Haven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02; B62M2027/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
The combination of a snowmobile having a chassis supported upon an endless track with a pair of forward skis separately sprung to the chassis on opposite sides thereof and subject to controlled turning for steering purposes, and a torsion bar carried transversely at the forward end of the chassis and having a generally forwardly and downwardly extending arm at each end engaging a corresponding ski to effect torsional transmission of forces from one ski to the other responsive to vertical movement of one ski relative to the other.
Claim 2
Dependent Claim
88 words
The combination of a snowmobile having a chassis supported upon an endless track with a pair of forward skis separately sprung to the chassis on opposite sides thereof and subject to controlled turning for steering purposes, and a torsion bar carried transversely at the forward end of the chassis and having a generally forwardly and downwardly extending arm at each end engaging a corresponding ski to effect torsional transmission of forces from one ski to the other responsive to vertical movement of one ski relative to the other.
Claim 3
Dependent Claim
72 words
The combination of claim 1 wherein the outer end of each arm of the torsion bar is turned laterally outwardly to bear against the top surface of the corresponding ski and a bracket on the top of the ski over-rides said outer end to provide a longitudinal horizontal slot in which said outer end is free to move in response to resilient or steering movement of the ski relative to the chassis.
Claim 4
Dependent Claim
23 words
The combination of claim 1 wherein the engaging ends of the torsion bar intersects the turning axis of the corresponding ski for steering.
References Cited (Backward Citations)
US2708133A
Cited
US2914126A
Cited
US3165332A
Cited
US3263984A
Cited
US3548961A
Cited
US3545560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |