Patent US3643536A successfully refreshed from Google Patents.
US3643536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adjusting roller guide
Assignee: ROBOT RESEARCH CORP KALAMAZOO MI A CORP OF MI
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Filing: 1970-06-01
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Granted: 1972-02-22
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Expires: 1990-06-01
Abstract
Abstract Self-adjusting band saw roller guide comprises a yoke having a pair of opposed legs with guide roller thereon. At least one of the rollers is carried by an eccentric sleeve bearing rotatably mounted on a leg of the yoke. A torque spring means mounted on the yoke engages the eccentric sleeve bearing and urges the roller to a predetermined position.
Inventors
- 👤 Carl J Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:48
CPC Classifications
B; B27; B27B; B27B13/00; B27B13/10; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7264
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A self-adjustiNg roller guide for a bandsaw comprising: a yoke provided with a pair of opposed legs adapted to carry guide rollers; an eccentric sleeve bearing rotatably mounted on a leg of said yoke; a guide roller adapted to engage a lateral portion of a bandsaw blade axially mounted on the eccentric sleeve bearing; and a torque spring means mounted on said yoke, engaging said eccentric sleeve bearing and urging said roller to a predetermined position relative to the bandsaw blade.
Claim 2
Dependent Claim
81 words
A self-adjustiNg roller guide for a bandsaw comprising: a yoke provided with a pair of opposed legs adapted to carry guide rollers; an eccentric sleeve bearing rotatably mounted on a leg of said yoke; a guide roller adapted to engage a lateral portion of a bandsaw blade axially mounted on the eccentric sleeve bearing; and a torque spring means mounted on said yoke, engaging said eccentric sleeve bearing and urging said roller to a predetermined position relative to the bandsaw blade.
Claim 3
Dependent Claim
223 words
A self-adjusting bandsaw roller guide having a yoke provided with a pair of opposed legs and a guide roller carried on each of said legs, said rollers being adapted to engage a bandsaw blade therebetween, which comprises: a screw means having an elongated body portion, a head portion on one end of said body portion and provided with a transverse recess, and an externally threaded end portion on the opposite end of said body portion and adapted to engage one of said yoke legs; a hollow substantially cylindrical housing rotatably spring-mounted on the head portion of said screw means, extending over the body portion thereof, and provided with a longitudinal slot in the side of the housing; inwardly projecting, diametrically opposed pins within said housing adapted to engage the transverse recess in the head portion of said screw means; a torque spring means within said housing, carried on the body portion and abutting the head portion of said screw means, and with one end thereof engaging the longitudinal slot of said housing; an eccentric sleeve bearing axially mounted on the body portion of said screw means; an integral, outwardly extending peripheral flange on said bearing abutting and operably engaging said torque spring means; and a guide roller axially mounted on said bearing and adapted to bear against one side of said bandsaw blade.
Claim 4
Dependent Claim
223 words
A self-adjusting bandsaw roller guide having a yoke provided with a pair of opposed legs and a guide roller carried on each of said legs, said rollers being adapted to engage a bandsaw blade therebetween, which comprises: a screw means having an elongated body portion, a head portion on one end of said body portion and provided with a transverse recess, and an externally threaded end portion on the opposite end of said body portion and adapted to engage one of said yoke legs; a hollow substantially cylindrical housing rotatably spring-mounted on the head portion of said screw means, extending over the body portion thereof, and provided with a longitudinal slot in the side of the housing; inwardly projecting, diametrically opposed pins within said housing adapted to engage the transverse recess in the head portion of said screw means; a torque spring means within said housing, carried on the body portion and abutting the head portion of said screw means, and with one end thereof engaging the longitudinal slot of said housing; an eccentric sleeve bearing axially mounted on the body portion of said screw means; an integral, outwardly extending peripheral flange on said bearing abutting and operably engaging said torque spring means; and a guide roller axially mounted on said bearing and adapted to bear against one side of said bandsaw blade.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |