Patent US3749413A successfully refreshed from Google Patents.
US3749413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled ski
Assignee: Individual
•
Filing: 1972-03-03
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Granted: 1973-07-31
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Expires: 1992-03-03
Abstract
Abstract A dry land ski assembly, having forward and rear wheels, includes a foot harness assembly pivotal by body action of the user from a free wheeling to a restricted rotation position for the front wheels.
Inventors
- 👤 J Nicolson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/14; A63C17/1409; A63C17/04; A63C17/045
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
147 words
A dry land ski, usable in pairs by a user, comprising a frame member; a front wheel set journaled for rotation at the front of said frame member and a rear wheel set journaled for rotation at the rear of said frame member; foot harness means arranged on said frame member intermediate said front and rear wheels inclusive of a toe plate, toe holder attached thereto and heel holding means; said foot harness means being pivotally mounted so as to pivot from a generally horizontal position downwardly toward said front wheel set; said toe plate being pivotally mounted in said foot harness means permitting pivoting thereof on upward and downward movement of the user''s heel; and brake means mounted on said foot harness means positioned to contact said front wheel set when said foot harness means is pivoted downwardly for preventing rotation of said front wheel set.
Claim 2
Dependent Claim
147 words
A dry land ski, usable in pairs by a user, comprising a frame member; a front wheel set journaled for rotation at the front of said frame member and a rear wheel set journaled for rotation at the rear of said frame member; foot harness means arranged on said frame member intermediate said front and rear wheels inclusive of a toe plate, toe holder attached thereto and heel holding means; said foot harness means being pivotally mounted so as to pivot from a generally horizontal position downwardly toward said front wheel set; said toe plate being pivotally mounted in said foot harness means permitting pivoting thereof on upward and downward movement of the user''s heel; and brake means mounted on said foot harness means positioned to contact said front wheel set when said foot harness means is pivoted downwardly for preventing rotation of said front wheel set.
Claim 3
Dependent Claim
20 words
A dry land ski according to claim 1 wherein said frame member includes a pair of opposed side frame members.
Claim 4
Dependent Claim
29 words
A dry land ski according to claim 2 wherein a cross member between said pair of opposed side frames provides a heel rest for a generally horizontal foot position.
Claim 5
Dependent Claim
32 words
A dry land ski according to claim 1 wherein said front and rear wheel sets are formed of at least two wheels each, and each set being journalleD on a single shaft.
Claim 6
Dependent Claim
19 words
A dry land ski according to claim 1 wherein each said front and rear set is a single wheel.
Claim 7
Dependent Claim
22 words
A dry land ski according to claim 1 wherein said foot harness means includes side frame members pivoted on said frame member.
Claim 8
Dependent Claim
26 words
A dry land ski according to claim 5 wherein said foot harness means also includes a link extending from the pivot thereof to said brake means.
Claim 9
Dependent Claim
45 words
A dry land ski according to claim 1 wherein said foot harness means includes side frame members pivoted adjacent one end on said frame member and having upwardly directed ends at the opposite end, and said brake means is mounted on said upwardly directed ends.
Claim 10
Dependent Claim
27 words
A dry land ski according to claim 1 wherein said frame member includes a cross piece positioned to limit downward pivoting movement of said foot harness means.
Claim 11
Dependent Claim
20 words
A dry land ski according to claim 1 wherein said toe to plate pivots independently of said foot harness means.
References Cited (Backward Citations)
US304893A
Cited
US732120A
Cited
FR516805A
Cited
US1801230A
Cited
FR736190A
Cited
GB467004A
Cited
US3365208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |