US3717238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski boot traction device
Assignee: Individual
•
Filing: 1971-11-16
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Granted: 1973-02-20
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Expires: 1991-11-16
Abstract
Abstract A retractable anti-slip device for a ski shoe consisting of a tubular metal casing transversely embedded in the sole or heel of the shoe, the casing having a longitudinal rotatable camming member therein mounted over a longitudinal plate element provided with depending spurs accessible through openings in the bottom wall portion of the casing and being therefore extensible downwardly from the bottom plane of the sole or heel. The plate member is biased upwardly by springs to retract the spurs. The rotatable camming member has a radial handle element at its end which is accessible by the user for manually operating the camming member.
Inventors
- 👤 J Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:46
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0415; A43B5/0417; A43C; A43C15/00; A43C15/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
85 words
In combination, an article of footwear having a groundengaging portion, a tubular casing mounted horizontally in said ground-engaging portion, a plurality of depending spur elements mounted in said casing, a cam member rotatably mounted in said casing and having an axial free-extending eccentrically located abutment element drivingly engageable with said spur elements responsive to the rotation of the cam member, and said casing and ground-engaging portion being apertured to allow the spur elements to protrude from said ground-engaging portion when driven by said cam member.
Claim 2
Dependent Claim
85 words
In combination, an article of footwear having a groundengaging portion, a tubular casing mounted horizontally in said ground-engaging portion, a plurality of depending spur elements mounted in said casing, a cam member rotatably mounted in said casing and having an axial free-extending eccentrically located abutment element drivingly engageable with said spur elements responsive to the rotation of the cam member, and said casing and ground-engaging portion being apertured to allow the spur elements to protrude from said ground-engaging portion when driven by said cam member.
Claim 3
Dependent Claim
85 words
In combination, an article of footwear having a ground-engaging portion, a tubular casing mounted horizontally in said ground-engaging portion, a plurality of depending spur elements mounted in said casing, a cam member rotatably mounted in said casing and having an axial free-extending eccentrically located abutment element drivingly engageable with said spur elements responsive to the rotation of the cam member, and said casing and ground-engaging portion being apertured to allow the spur elements to protrude from said ground-engaging portion when driven by said cam member.
Claim 4
Dependent Claim
85 words
In combination, an article of footwear having a ground-engaging portion, a tubular casing mounted horizontally in said ground-engaging portion, a plurality of depending spur elements mounted in said casing, a cam member rotatably mounted in said casing and having an axial free-extending eccentrically located abutment element drivingly engageable with said spur elements responsive to the rotation of the cam member, and said casing and ground-engaging portion being apertured to allow the spur elements to protrude from said ground-engaging portion when driven by said cam member.
Claim 5
Dependent Claim
33 words
The structural combination of claim 1, wherein said spur elements are mounted on an elongated plate element disposed longitudinally in said casing, and said abutment element is drivingly engageable with said plate element.
Claim 6
Dependent Claim
25 words
The structural combination of claim 2, and wherein said abutment element comprises an axially extending rod-like reduced intermediate portion forming part of the cam member.
Claim 7
Dependent Claim
44 words
The structural combination of claim 3, and wherein at least one end of the casing extends adjacent an edge of the ground-engaging portion, and wherein said cam member is provided with a handle element exposed for operation at said one end of the casing.
Claim 8
Dependent Claim
26 words
The structural combination of claim 4, and wherein said casing and ground-engaging portion are formed with registering apertures in which said spur elements are slidably received.
Claim 9
Dependent Claim
25 words
The structural combination of claim 5, and spring means biasing the plate element upwardly toward contact with said rod-like intermediate portion of the cam member.
Claim 10
Dependent Claim
37 words
The structural combination of claim 6, and wherein said plate element has a flat top surface portion and said rod-like intermediate portion has at least one longitudinally extending flat surface engageable with said flat top surface portion.
Claim 11
Dependent Claim
29 words
The structural combination of claim 7, and wherein said rod-like intermediate portion has diametrically opposed longitudinally extending flat locking surface engageable with the flat surface of the plate elements.
Claim 12
Dependent Claim
22 words
The structural combination of claim 8, and wherein said cam member has respective cylindrical opposite end portions rotatably engaging in said casing.
Claim 13
Dependent Claim
19 words
The structural combination of claim 9, and wherein said tubular casing is mounted substantially transversely in said ground-engaging portion.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |