US3839828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for sharpening skates
Assignee: Individual
•
Filing: 1973-02-21
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Granted: 1974-10-08
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Expires: 1993-02-21
Abstract
Abstract A method and apparatus for sharpening skates in which one skate of a pair is used as a guide for sharpening the other skate and the sharpened skate is then used as a guide for sharpening the unsharpened skate. All types of skates may be sharpened.
Inventors
- 👤 R Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:25
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
246 words
An ice skate sharpener comprising first and second members guided for linear reciprocation relative to each other, means for holding a pair of skates in fixed relation to each other on one of the members with the skating edges oriented lengthwise in said direction of reciprocation, said holding means for at least one of said skates having independently adjustable front and rear supporting means engaginG the edge of said one skate opposite its skating edge so that by adjustment of said supporting means the position of the skating edge of said one skate may be matched to the position of the skating edge of the other skate, means on the other member for carrying a follower riding on the skating edge of one of the skates and a grinding wheel supported on an arbor rotatable on an axis in alignment with the skating edge of the other skate, means for mounting the holding and carrying means for relative movement toward and away from the skating edges for positioning the follower on its skating edge and for positioning the grinding wheel in a corresponding position with respect to its skating edge so that upon relative reciprocation of said members, the follower traces the outline of its skating edge and the grinding wheel duplicates the outline of the follower''s skating edge, and means for adjusting the relative positions of the follower and grinding wheel to adjust the depth of cut taken by the grinding wheel on its edge.
Claim 2
Dependent Claim
246 words
An ice skate sharpener comprising first and second members guided for linear reciprocation relative to each other, means for holding a pair of skates in fixed relation to each other on one of the members with the skating edges oriented lengthwise in said direction of reciprocation, said holding means for at least one of said skates having independently adjustable front and rear supporting means engaginG the edge of said one skate opposite its skating edge so that by adjustment of said supporting means the position of the skating edge of said one skate may be matched to the position of the skating edge of the other skate, means on the other member for carrying a follower riding on the skating edge of one of the skates and a grinding wheel supported on an arbor rotatable on an axis in alignment with the skating edge of the other skate, means for mounting the holding and carrying means for relative movement toward and away from the skating edges for positioning the follower on its skating edge and for positioning the grinding wheel in a corresponding position with respect to its skating edge so that upon relative reciprocation of said members, the follower traces the outline of its skating edge and the grinding wheel duplicates the outline of the follower''s skating edge, and means for adjusting the relative positions of the follower and grinding wheel to adjust the depth of cut taken by the grinding wheel on its edge.
Claim 3
Dependent Claim
29 words
The sharpener of claim 1 in which at least one of said skates is supported by two eccentric pins respectively at the front and rear ends of the skate.
Claim 4
Dependent Claim
20 words
The sharpener of claim 1 in which the holding means for said one skate has magnets for gripping the skate.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |