US3815696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowmobile banking mechanism
Assignee: Individual
•
Filing: 1973-02-15
•
Granted: 1974-06-11
•
Expires: 1993-02-15
Abstract
Abstract A snowmobile of the endless tread type is provided with a turning and banking as well as direct run assembly comprising a spoiler joined forwardly of the operator to the chassis of the snowmobile and in positon generally over the front skiis with the spoiler member having aileron portions cooperatively joined to the steering mechanism of the snowmobile for movement in accordance with the steering movement of the skiis. The angle of the spoiler to the horizontal is adjustable to increase or decrease the pressure of the skiis on the snow.
Inventors
- 👤 C Larive
- 👤 F Larive
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:12
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02; B62D; B62D35/00; B62D35/005; B62D37/00; B62D37/02; B62J; B62J17/00; B62J17/10; B62M2027/028; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/82
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
In a snowmobile having a chassis supported and powered at the rear portion thereof by an endless tread and and supported at the forward portion by a pair of front mounted steerable ski members, said ski members being operatively joiNed for steering to a steering column the improvement comprising: a. a wing shaped spoiler member joined to and extending transversely across the forward portion of the snowmobile in vertical relationship to at least a portion of said ski members; b. aileron members pivotally joined to said spoiler adjacent opposite ends thereof, and, c. means operatively connecting each of said ailerons to said steering column for pivotal motion in response therewith and in opposite direction to one another so that the air drag produced on said aileron members will apply increased downward pressure on the ski on the side of the vehicle toward the direction of turn and reduced downward pressure on the ski opposite the direction of turn.
Claim 2
Dependent Claim
158 words
In a snowmobile having a chassis supported and powered at the rear portion thereof by an endless tread and and supported at the forward portion by a pair of front mounted steerable ski members, said ski members being operatively joiNed for steering to a steering column the improvement comprising: a. a wing shaped spoiler member joined to and extending transversely across the forward portion of the snowmobile in vertical relationship to at least a portion of said ski members; b. aileron members pivotally joined to said spoiler adjacent opposite ends thereof, and, c. means operatively connecting each of said ailerons to said steering column for pivotal motion in response therewith and in opposite direction to one another so that the air drag produced on said aileron members will apply increased downward pressure on the ski on the side of the vehicle toward the direction of turn and reduced downward pressure on the ski opposite the direction of turn.
Claim 3
Dependent Claim
28 words
A snowmobile in accordance with claim 1 wherein adjustable means join said spoiler to said snowmobile so that the angle of attack of said spoiler may be varied.
Claim 4
Dependent Claim
55 words
A snowmobile in accordance with claim 2 wherein said adjustable means includes a hinge means joining the rear edge of said spoiler to the snowmobile, a vertically oriented rod member joined to said spoiler at a forward portion thereof, and means releasably engaging the lower portions of said rod member are mounted to said snowmobile.
Claim 5
Dependent Claim
26 words
A snowmobile in accordance with claim 1 wherein said aileron members extend from the front to the rear edge of each end of said spoiler member.
Claim 6
Dependent Claim
88 words
A snowmobile in accordance with claim 4 wherein a rod member extends transversely through said spoiler member and into each aileron member, right and left tube means joined to said respective ailerons and in telescoped relationship with said rod member, spindle arms joined to each of said tube means and linkage means joining said spindle arms respectively to opposite sides of said steering column so that rotation of said steering column will rotate said right and left tubes and the corresponding ailerons in opposite directions to one another.
Claim 7
Dependent Claim
39 words
A snowmobile in accordance with claim 5 wherein said steering column includes an aileron control rod extending transversely therethrough adjacent a lower end thereof and said linkage means are joined to the outer ends of said aileron control rod.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |