US3653453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for improving the steerability of a motor sled
Assignee: Individual
•
Filing: 1970-03-31
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Granted: 1972-04-04
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Expires: 1990-03-31
Abstract
Abstract A mechanical or hydraulic lifting device provided in a motor sled for improving its steerability, by means of which the relationship in height between the steering device, such as a ski element, and the traction surface or part of the traction surface of the propagation device, such as an endless track, is made variable during driving.
Inventors
- 👤 Jussi Antti Tiitola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
In a motor sled a device for adjusting the height position of the steering device, such as a ski element, in relation to the traction surface of propagation device, such as an endless track, in order to improve steerability of the motor sled, comprising a control rod for raising and lowering said steering device, said control rod being rotatable about a generally vertical axis in a horizontal plane to steer said vehicle, a lever arm placed substantially longitudinally with reference to the motor sled, the front end of said lever arm being turnable about a horizontal axis provided transversely in the front part of said motor sled, said steering device being fixed to said lever arm at a distance from the turnably pivoted front end of said lever arm, the rear end of said lever arm being fixed to said control rod for movement therewith and to a locking element for locking the free end of said lever arm.
Claim 2
Dependent Claim
159 words
In a motor sled a device for adjusting the height position of the steering device, such as a ski element, in relation to the traction surface of propagation device, such as an endless track, in order to improve steerability of the motor sled, comprising a control rod for raising and lowering said steering device, said control rod being rotatable about a generally vertical axis in a horizontal plane to steer said vehicle, a lever arm placed substantially longitudinally with reference to the motor sled, the front end of said lever arm being turnable about a horizontal axis provided transversely in the front part of said motor sled, said steering device being fixed to said lever arm at a distance from the turnably pivoted front end of said lever arm, the rear end of said lever arm being fixed to said control rod for movement therewith and to a locking element for locking the free end of said lever arm.
Claim 3
Dependent Claim
15 words
The motor sled of claim 1 wherein the steering device comprises a pair of skis.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |