US4092787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for teaching the execution of a ski turn on skis
Assignee: Individual
•
Filing: 1977-05-06
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Granted: 1978-06-06
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Expires: 1997-05-06
Abstract
Abstract Apparatus for teaching the technique of turning a ski comprising two plates, simulating skis, disposed in parallel, adjacent relation, each plate being provided with an assembly for secure support of a shoe thereon in that capability of sliding. Each plate is resiliently supported for undergoing two modes of movement, one mode being a raising and lowering movement responsive to weighting and unweighting the plate, the other mode being a pivotal movement of the plate about its longitudinal axis when the plate is lowered. The plates are associated with electrical switches in an electrical circuit having illuminating or other indicator devices for producing signals when the plates are properly weighted and unweighted and correspondingly pivoted around their longitudinal axes to simulate the conditions for executing a turn of the skis.
Inventors
- 👤 Adolf Kaempfen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:02
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/18; A63B22/00; A63B22/14; A63B2220/00; A63B2220/17
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
114 words
Apparatus for teaching the technique of turning a ski, comprising left and right plates placed side by side in parallel relation to one another, each plate including means for supporting a shoe without capability of sliding, means supporting each plate for resilient lifting and lowering movements in accordance with shift of weight on the plate and for inclination about a longitudinal axis through the plate, and means responsive to the movement of said plates for producing a signal each time that one of the plates is unweighted and occupies a raised position while the other plate is weighted and simultaneously lowered and inclined about its longitudinal axis in the direction of the first plate.
Claim 2
Dependent Claim
114 words
Apparatus for teaching the technique of turning a ski, comprising left and right plates placed side by side in parallel relation to one another, each plate including means for supporting a shoe without capability of sliding, means supporting each plate for resilient lifting and lowering movements in accordance with shift of weight on the plate and for inclination about a longitudinal axis through the plate, and means responsive to the movement of said plates for producing a signal each time that one of the plates is unweighted and occupies a raised position while the other plate is weighted and simultaneously lowered and inclined about its longitudinal axis in the direction of the first plate.
Claim 3
Dependent Claim
35 words
Apparatus as claimed in claim 1 wherein said means for producing a signal includes indicators for producing two signals one when the left plate is unweighted and the other when the right plate is unweighted.
Claim 4
Dependent Claim
12 words
Apparatus as claimed in claim 2 wherein said signals are luminous signals.
Claim 5
Dependent Claim
11 words
Apparatus as claimed in claim 2 wherein said indicators are lamps.
Claim 6
Dependent Claim
17 words
Apparatus as claimed in claim 4 wherein said means for producing a signal comprises an electrical circuit.
Claim 7
Dependent Claim
19 words
Apparatus as claimed in claim 5 wherein said circuit has a plug permitting remote attachment thereto of said lamps.
Claim 8
Dependent Claim
16 words
Apparatus as claimed in claim 1 wherein said means supporting each plate includes an elastic member.
Claim 9
Dependent Claim
13 words
Apparatus as claimed in claim 7 wherein said elastic member is foam rubber.
Claim 10
Dependent Claim
71 words
Apparatus as claimed in claim 1 wherein said means supporting each plate comprises a main plate, each of the left and right plates having a lower surface with a rib thereon facing said main plate and normally spaced therefrom, said ribs coming into contact with said main plate when the associated left and right plates are lowered to allow the respective left and right plates to rotate around their longitudinal axis.
Claim 11
Dependent Claim
19 words
Apparatus as claimed in claim 9 comprising a frame supporting said main plate for rotation in its own plane.
Claim 12
Dependent Claim
33 words
Apparatus as claimed in claim 10 wherein said frame includes a first support part, and a second part pivotable and said first part and supporting said main plane for rotation in its plane.
Claim 13
Dependent Claim
34 words
Apparatus as claimed in claim 11 comprising means for adjustably supporting said second part on said first part for varying the angle of inclination of said second part with respect to said first part.
Claim 14
Dependent Claim
72 words
Apparatus as claimed in claim 5 wherein said electrical circuit comprises first and second branches each connected to a power source and including first and second switches, the first switch being associated with a first plate for being closed depending on the raised or lowered state thereof, the second switch being associated with the second plate for being closed depending on the inclined position thereof in the direction of the first plate.
References Cited (Backward Citations)
US2402109A
Cited
US2504318A
Cited
US2657055A
Cited
US3159400A
Cited
US3582066A
Cited
FR2262362A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |