Patent US3724867A successfully refreshed from Google Patents.
US3724867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski spurs
Assignee: Individual
•
Filing: 1971-05-20
•
Granted: 1973-04-03
•
Expires: 1991-05-20
Abstract
Abstract This invention relates to a ski spur, or non-skid device for skis which, in a retracted and non-operative position, lies on top of the respective skis; and in a projected and operative condition, provides spurs, or projections, which extend downwardly from the side of the ski to enable the wearer to climb icy or slippery slopes with extreme ease.
Inventors
- 👤 N Hawthorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:29
CPC Classifications
A; A63; A63C; A63C7/00; A63C7/08
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
150 words
A non-skid device for skis comprising: a. a shaft rockably mounted on the top of said ski; b. a blade member slidably mounted on the end of said shaft, said shaft and blade assembly being adapted to rock from a first position in which the blade is above the top of the ski to a second position in which it extends below the lower face of the ski; c. means for rocking said shaft and blade assembly; d. means for biasing said shaft and blade assembly to its first position; e. means for latching said shaft and blade assembly in its second position; f. means for permitting limited lateral movement of said blade member on said shaft; g. means biasing said blade member inwardly when in said first position, whereby said member overlies the ski; and h. cam means forcing said blade member outwardly when rotated to its second position.
Claim 2
Dependent Claim
150 words
A non-skid device for skis comprising: a. a shaft rockably mounted on the top of said ski; b. a blade member slidably mounted on the end of said shaft, said shaft and blade assembly being adapted to rock from a first position in which the blade is above the top of the ski to a second position in which it extends below the lower face of the ski; c. means for rocking said shaft and blade assembly; d. means for biasing said shaft and blade assembly to its first position; e. means for latching said shaft and blade assembly in its second position; f. means for permitting limited lateral movement of said blade member on said shaft; g. means biasing said blade member inwardly when in said first position, whereby said member overlies the ski; and h. cam means forcing said blade member outwardly when rotated to its second position.
Claim 3
Dependent Claim
18 words
The device of claim 1 wherein the blade member is provided with projections adapted to penetrate icy snow.
Claim 4
Dependent Claim
11 words
a shaft journalled in said base plate transversely of said ski;
Claim 5
Dependent Claim
11 words
a shaft journalled in said base plate transversely of said ski;
Claim 6
Dependent Claim
36 words
a spur slidably and non-rotatably mounted on each end of said shaft, said spurs in an extended position lying immediately adjacent the sides of said ski and in a retracted position lying above the said ski;
Claim 7
Dependent Claim
36 words
a spur slidably and non-rotatably mounted on each end of said shaft, said spurs in an extended position lying immediately adjacent the sides of said ski and in a retracted position lying above the said ski;
Claim 8
Dependent Claim
34 words
The device of claim 1 wherein the blade member comprises a pair of plates, one lying to either side of the ski, and each plate is provided with projections adapted to penetrate icy snow.
Claim 9
Dependent Claim
6 words
A non-skid device for skis comprising:
Claim 10
Dependent Claim
6 words
A non-skid device for skis comprising:
Claim 11
Dependent Claim
6 words
a lever for rocking said shaft,
Claim 12
Dependent Claim
6 words
a lever for rocking said shaft,
Claim 13
Dependent Claim
17 words
means for biasing said lever to a position in which the spurs are elevated above the ski;
Claim 14
Dependent Claim
17 words
means for biasing said lever to a position in which the spurs are elevated above the ski;
Claim 15
Dependent Claim
20 words
latch means for holding said lever in another position in which the spurs extend below the face of the ski;
Claim 16
Dependent Claim
20 words
latch means for holding said lever in another position in which the spurs extend below the face of the ski;
Claim 17
Dependent Claim
18 words
spring means for pulling said spurs toward each other when said spurs are in an elevated position, and
Claim 18
Dependent Claim
18 words
spring means for pulling said spurs toward each other when said spurs are in an elevated position, and
Claim 19
Dependent Claim
21 words
complimentary cam means on said spurs and said base plate for forcing said spurs apart when rocked to a lower position.
Claim 20
Dependent Claim
21 words
complimentary cam means on said spurs and said base plate for forcing said spurs apart when rocked to a lower position.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |