US4363492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller ski for training long distance skiing
Assignee: Individual
•
Filing: 1980-03-04
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Granted: 1982-12-14
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Expires: 2000-03-04
Abstract
Abstract A roller ski comprising a foot plate (6) supported by a forward and a rear pneumatic rubber wheel (7, 8) and provided with rigid supporting members (9) arranged to support the user's leg laterally at a level between the foot and the knee and at the same time to allow the leg to move freely in the longitudinal direction of the roller ski.
Inventors
- 👤 Arne Eriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/035; A63C17/00; A63C17/04; A63C17/045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
A roller ski for training skiers of the type having a foot plate with binding means adapted to retain the user's ski shoe in such a manner that the heel portion is freely pivotable about the firmly fixed toe portion, and which foot plate has rotatably mounted thereon a forward and a rear wheel, comprising supporting members arranged to extend upwards from the foot plate to form side supports for the user's lower legs, said supporting members being rigid side members which extend on each side of the foot plate in arc-form upwards from the foot plate between its forward and rear portions for providing, during the pivoting of the heel portion around the binding means, lateral supports at a level just above the ski shoe, along the entire motion path of the lower leg, without thereby holding or hampering the leg in its motion in the longitudinal direction of the roller ski.
Claim 2
Dependent Claim
153 words
A roller ski for training skiers of the type having a foot plate with binding means adapted to retain the user's ski shoe in such a manner that the heel portion is freely pivotable about the firmly fixed toe portion, and which foot plate has rotatably mounted thereon a forward and a rear wheel, comprising supporting members arranged to extend upwards from the foot plate to form side supports for the user's lower legs, said supporting members being rigid side members which extend on each side of the foot plate in arc-form upwards from the foot plate between its forward and rear portions for providing, during the pivoting of the heel portion around the binding means, lateral supports at a level just above the ski shoe, along the entire motion path of the lower leg, without thereby holding or hampering the leg in its motion in the longitudinal direction of the roller ski.
Claim 3
Dependent Claim
30 words
A roller ski according to claim 1, wherein said supporting members extend between the positions where the forward and rear wheels are mounted at each side of the foot plate.
Claim 4
Dependent Claim
18 words
A roller ski according to any one of the preceding claims, wherein said wheels are pneumatic rubber wheels.
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) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |