Patent US3613809A successfully refreshed from Google Patents.
US3613809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski leg for a snowmobile-type vehicle
Assignee: Individual
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Filing: 1969-06-17
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Granted: 1971-10-19
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Expires: 1989-06-17
Abstract
Abstract The present invention relates to the construction of the ski leg used on a snowmobile type vehicle for supporting the ski structure which is used to steer the vehicle. The improvement consists in providing to the ordinary ski leg a member which limits the longitudinal swing of the ski structure when the vehicle, travelling at relatively high speed, is jolted into a free-in-air position.
Inventors
- 👤 Guy-Noel Chaumont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:03
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02; B62M2027/025; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32918
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A ski leg for supporting a longitudinally swingable ski structure mounted underneath a snowmobile-type vehicle comprising a strut member having its upper end adapted for mounting on the vehicle; a swing-limiting rigid member mounted at the lower end of the strut member and extending lengthwise of the ski structure; said lower end of said strut member being completely embedded in said rigid member so as to form an integral part therewith; said swing-limiting member having an opening extending transversely therethrough and transversing the longitudinal axis of said strut member; and a bushing member received in said opening and providing a pivot axis; said rigid swing-limiting member having an underside formed of two contiguous inclined surfaces forming substantially planar surfaces which intersect along a line below and substantially parallel with the axis of said bushing and defining an included angle of less than 180*, each surface defining a stop wall for the impingement of the ski structure thereon when swinging, to thereby limit the swing thereof.
Claim 2
Dependent Claim
165 words
A ski leg for supporting a longitudinally swingable ski structure mounted underneath a snowmobile-type vehicle comprising a strut member having its upper end adapted for mounting on the vehicle; a swing-limiting rigid member mounted at the lower end of the strut member and extending lengthwise of the ski structure; said lower end of said strut member being completely embedded in said rigid member so as to form an integral part therewith; said swing-limiting member having an opening extending transversely therethrough and transversing the longitudinal axis of said strut member; and a bushing member received in said opening and providing a pivot axis; said rigid swing-limiting member having an underside formed of two contiguous inclined surfaces forming substantially planar surfaces which intersect along a line below and substantially parallel with the axis of said bushing and defining an included angle of less than 180*, each surface defining a stop wall for the impingement of the ski structure thereon when swinging, to thereby limit the swing thereof.
Claim 3
Dependent Claim
76 words
A ski leg as defined in claim 1 further comprising pin means extending through said bushing member for pivotally connecting the ski structure to the swing-limiting member and a rubberlike crushable material disposed between said contiguous surfaces of swing-limiting member and said ski structure and having top surfaces shaped to correspondingly receive the contiguous surfaces of the swing-limiting member, the swing-limiting action of the contiguous surfaces on the ski structure being transmitted through said rubberlike material.
Claim 4
Dependent Claim
49 words
A ski leg as defined in claim 2 wherein the strut member is circular in cross section except for the lower end thereof in the swing-limiting member which is flat, to provide greater resistance to a twisting effect at the connection of the strut member with the swing-limiting member.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |