US3760895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering apparatus for a self-propelled vehicle
Assignee: Individual
•
Filing: 1971-12-27
•
Granted: 1973-09-25
•
Expires: 1991-12-27
Abstract
Abstract A self-propelled vehicle having a pair of supporting skis which are dirigible for steering the vehicle. The vehicle has control apparatus for imparting steering movement to the skis as well as pivotal or tilting movements to the skis on generally horizontal axes extending longitudinally of the skis, the tilting movements being relative to the vehicle frame structure.
Inventors
- 👤 W Martinmaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:23
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
172 words
In a self-propelled vehicle including, a frame structure, power means mounted on the frame structure for propelling the vehicle over an underlying surface, a pair of skis each defining a planing surface having an upwardly curving front end portion and a rear end, means including a pair of steering spindles mounted said skis on said frame structure for common steering movements on parallel axes extending in generally upward and downward directions, and a rotary steering shaft journalled in the frame structure, the improvement comprising: a. a pair of adapters interposed between said skis and their respective steering spindles and mounting said skis for pivotal movements relative to said frame structure on axes extending longitudinally of said skis, b. a control handle mounted on said steering shaft for common steering movements therewith and for independent movements relative to said steering shaft, c. and linkage connecting said control handle to each of said adapters for imparting tilting movements to said skis on said longitudinal axes responseive to said independent movements of the control handle.
Claim 2
Dependent Claim
172 words
In a self-propelled vehicle including, a frame structure, power means mounted on the frame structure for propelling the vehicle over an underlying surface, a pair of skis each defining a planing surface having an upwardly curving front end portion and a rear end, means including a pair of steering spindles mounted said skis on said frame structure for common steering movements on parallel axes extending in generally upward and downward directions, and a rotary steering shaft journalled in the frame structure, the improvement comprising: a. a pair of adapters interposed between said skis and their respective steering spindles and mounting said skis for pivotal movements relative to said frame structure on axes extending longitudinally of said skis, b. a control handle mounted on said steering shaft for common steering movements therewith and for independent movements relative to said steering shaft, c. and linkage connecting said control handle to each of said adapters for imparting tilting movements to said skis on said longitudinal axes responseive to said independent movements of the control handle.
Claim 3
Dependent Claim
83 words
A self-propelled vehicle comprising: a. a frame structure; b. a pair oF skis each definIng a planing surface having an upwardly curving front end portion and a rear end; c. means mounting said Skis on said frame structure in laterally spaced generally parallel relationship for pivotal movements relative to said frame structure on generally horizontal axes extending longitudinally of said skis and for common steering movements on parallel axes extending in generally upward and downward directions generally transversely of said skis, and including,
Claim 4
Dependent Claim
83 words
A self-propelled vehicle comprising: a. a frame structure; b. a pair oF skis each definIng a planing surface having an upwardly curving front end portion and a rear end; c. means mounting said Skis on said frame structure in laterally spaced generally parallel relationship for pivotal movements relative to said frame structure on generally horizontal axes extending longitudinally of said skis and for common steering movements on parallel axes extending in generally upward and downward directions generally transversely of said skis, and including,
Claim 5
Dependent Claim
14 words
a pair of spindles each journalled in said frame structure for said steering movement,
Claim 6
Dependent Claim
14 words
a pair of spindles each journalled in said frame structure for said steering movement,
Claim 7
Dependent Claim
9 words
means operatively connecting said steering shaft to said spindle,
Claim 8
Dependent Claim
9 words
means operatively connecting said steering shaft to said spindle,
Claim 9
Dependent Claim
3 words
a control handle,
Claim 10
Dependent Claim
3 words
a control handle,
Claim 11
Dependent Claim
51 words
and connecting means connecting each of said spindles to a different one of said adapters; d. power means mounted on said frame structure for propelling the vehicle over an underlying surface; e. and control means carried by said frame structure for imparting said pivotal and steering movements to said skis, comprising,
Claim 12
Dependent Claim
51 words
and connecting means connecting each of said spindles to a different one of said adapters; d. power means mounted on said frame structure for propelling the vehicle over an underlying surface; e. and control means carried by said frame structure for imparting said pivotal and steering movements to said skis, comprising,
Claim 13
Dependent Claim
47 words
The vehicle according to claim 2 in which said adapters each comprise a base member operatively connected to one of said skis, and a support member pivotally mounted on its respective base member and operatively connected to a respective one of said spindles by said connecting means.
Claim 14
Dependent Claim
55 words
The vehicle according to claim 3 in which said connecting means comprises a pair of shoe elements each rigidly connected to a different one of said support members, and a pair of feet one each rigidly secured to a different one of said spindles and each connected to a respective one of said shoe elements.
Claim 15
Dependent Claim
22 words
means mounting said control handle on said steering shaft for common rotation therewith and for independent movements relative to said steerIng shaft,
Claim 16
Dependent Claim
22 words
means mounting said control handle on said steering shaft for common rotation therewith and for independent movements relative to said steerIng shaft,
Claim 17
Dependent Claim
26 words
and linkage connecting said control handle to said adapters for imparting said pivotal movement to said skis responsive to said independent movements of the control handle.
Claim 18
Dependent Claim
26 words
and linkage connecting said control handle to said adapters for imparting said pivotal movement to said skis responsive to said independent movements of the control handle.
Claim 19
Dependent Claim
43 words
The vehicle according to claim 4 in which said feet are connected to their respective shoe elements for limited pivotal movements of said shoe elements, adapters and skis, relative to said frame structure, on normally generally horizontal axes extending transversely of said skis.
Claim 20
Dependent Claim
37 words
The vehicle according to claim 2 in which said means mounting the control handle on said steering shaft comprises a pivot connection between said control handle and steering shaft and having an axis extending transversely of said
Claim 21
Dependent Claim
62 words
The vehicle according to claim 6 in which said linkage comprises a pair of rigid links each having an inner end connected to said control handle and an outer end, and lever means pivotally mounted on said frame structure and having spaced portions connected to the outer end of respective ones of said rigid links and to respective ones of said adapters.
Claim 22
Dependent Claim
77 words
The vehicle according to claim 7 in which lever each of said adapters comprise a base member operatively connected to a respective one of said skis and a support member pivotally mounted on its respective base member, said lever means comprising a pair of levers each pivotally connected at one end to the outer end of a different one of said rigid links and an opposite end pivotally connected to a different one of said base members.
Claim 23
Dependent Claim
58 words
The vehicle according to claim 8 in which each of said levers includes an elongated intermediate portion mounted on said frame structure for universal pivotal and longitudinal sliding movements relative to said frame structure and responsive to steering rotation of said steering shaft and independent movements of said control handle to impart said pivotal movements to said skis.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |