Patent US4055026A successfully refreshed from Google Patents.
US4055026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp for holding ice skate while grinding blade
Assignee: Individual
•
Filing: 1974-12-30
•
Granted: 1977-10-25
•
Expires: 1994-12-30
Abstract
Abstract A clamp for holding an ice skate while grinding the edge of the ice skate blade slides on a surface parallel to the plane of a grinding wheel for grinding the edge of the blade, the clamp holding the skate blade parallel to the plane of the grinding wheel, even with the edge of the wheel, so that the edge of the blade can be brought to bear on the edge of the grinding wheel along the length of the blade by sliding the clamp about on the surface; and so long as the clamp is against the surface, the edge of the blade is aligned with the edge of the grinding wheel.
Inventors
- 👤 Homer A. Zwicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:56
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
A clamp for holding an ice skate by the skate blade while grinding the edge of the blade comrising, a base, first and second jaws, each pivotally attached to the base, means attached to the base for providing a pivot axle for both of said jaws, pivotally connecting the jaws together in spaced relationship to said base, opposed gripping ends of the jaws on one side of said pivot axle for holding the ice skate blade securely therebetween, with the plane of the blade substantially parallel to the base, a yoke attached to the base at each end of the pivot axle, a disc eccentrically connected at each end of the pivot axle, the discs each being rotatably held by one of the yokes, rotatable on a common disc axis parallel to the axis of the axle, means for locking said discs in position in said yokes and means at the other side of said pivot axle for pivoting said jaws in opposite directions with respect to the base, whereby the gripping ends of the jaws close and grip the ice skate blade therebetween in readiness for grinding.
Claim 2
Dependent Claim
188 words
A clamp for holding an ice skate by the skate blade while grinding the edge of the blade comrising, a base, first and second jaws, each pivotally attached to the base, means attached to the base for providing a pivot axle for both of said jaws, pivotally connecting the jaws together in spaced relationship to said base, opposed gripping ends of the jaws on one side of said pivot axle for holding the ice skate blade securely therebetween, with the plane of the blade substantially parallel to the base, a yoke attached to the base at each end of the pivot axle, a disc eccentrically connected at each end of the pivot axle, the discs each being rotatably held by one of the yokes, rotatable on a common disc axis parallel to the axis of the axle, means for locking said discs in position in said yokes and means at the other side of said pivot axle for pivoting said jaws in opposite directions with respect to the base, whereby the gripping ends of the jaws close and grip the ice skate blade therebetween in readiness for grinding.
Claim 3
Dependent Claim
34 words
A clamp as in claim 1 wherein, at least one of said discs connects loosely with the axle so that the discs can be rotated and locked in the yoke at different rotational positions.
Claim 4
Dependent Claim
66 words
A clamp as in claim 2, wherein, the means for pivoting the jaws in opposite directions includes a jaw arm extending from each jaw, a cam between said jaw arms engaging each arm and defining a cam axis of rotation substantially parallel to the disc axis, means attached to the base for holding the cam rotatable on the cam axis and means for rotating the cam.
Claim 5
Dependent Claim
19 words
A clamp as in claim 3 wherein, the pivot axis, the disc axis and the cam axis are parallel.
Claim 6
Dependent Claim
25 words
A clamp as in claim 4 wherein, the pivot axis and the cam axis both lie substantially in the plane of the ice skate blade.
Claim 7
Dependent Claim
43 words
A clamp as in claim 5 wherein, an adjustable plate is provided at the gripping end of each jaw, so attached thereto that the edges of the plates which engage the ice skate blade can be adjusted parallel or non-parallel to each other.
Claim 8
Dependent Claim
75 words
A clamp as in claim 1 wherein, first and second pivot axles are provided for the first and second jaws, respectively, said first and second axles are attached together with their respective axes in spaced parallel relationship and the discs are connected eccentrically to both of said axles, whereby rotation of the discs in the yokes on the common disc axis changes the spaced relationship of both of said pivot axles relative to the base.
Claim 9
Dependent Claim
25 words
A clamp as in claim 6 wherein, the two pivot axle axes are equally spaced from the common disc axis on diametrically opposed sides thereof.
References Cited (Backward Citations)
SU328992A1
Cited
US454779A
Cited
US842007A
Cited
US912757A
Cited
US1386318A
Cited
US2325417A
Cited
US2655774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |