Patent US3916581A successfully refreshed from Google Patents.
US3916581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for dressing grinding wheels
Assignee: Western Atlas Inc
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Filing: 1973-11-29
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Granted: 1975-11-04
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Expires: 1993-11-29
Abstract
Abstract An improved method for dressing the periphery of a grinding wheel having a circular main surface which extends transversely to a circular shoulder. To dress the main surface of the grinding wheel, an axially extending surface on a first dressing wheel is moved into engagement with the main surface of the grinding wheel. To dress the shoulder surface, an axially extending surface on a second dressing wheel is moved into engagement with the shoulder surface of the grinding wheel. The two dressing wheels are mounted on a common carriage or slide which is moved relative to the grinding wheel by a three-position motor assembly. The three-position motor assembly and dressing wheel slide are both mounted on a base slide which is moved toward and away from the grinding wheel by another motor. The two dressing wheels are mounted for rotation about transversely extending axes and are positioned relative to each other in such a manner that when the first dressing wheel is in engagement with the main surface of the grinding wheel, the second dressing wheel is spaced from the shoulder surface of the grinding wheel. Similarly, when the second dressing wheel is in engagement with the shoulder surface of the grinding wheel, the first dressing wheel is spaced from the main surface of the grinding wheel.
Inventors
- 👤 Francis L Messier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:18
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/04; B24B53/053
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
363 words
A method of dressing the periphery of a rotatable grinding wheel having a circular main surface which extends at an acute angle to the axis of rotation of the grinding wheel and a circular shoulder surface extending transversely to the main surface, said method comprising the steps of rotating the grinding wheel, moving a first rotatable dressing wheel into engagement with the main surface of the rotating grinding wheel, said step of moving the first dressing wheel into engagement with the main surface of grinding wheel includes the step of moving the first dressing wheel along a first path which intersects the main surface on the grinding wheel, said first path extending substantially perpendicular to the axis of rotation of the grinding wheel and at an acute angle to the axis of rotation of the first dressing wheel to provide for engagement of the first dressing wheel with the main surface of the grinding wheel as the first dressing wheel is moved along the first path, rotating the first dressing wheel about a first axis extending generally parallel to the main surface of the grinding wheel when the first dressing wheel is in engagement with the main surface of the grinding wheel, moving the first dressing wheel away from the main surface of the grinding wheel after the main surface has been dressed, moving a second dressing wheel into engagement with the shoulder surface of the rotating grinding wheel after performing said step of moving the first dressing wheel away from the main surface of the grinding wheel, said step of moving the second dressing wheel into engagement with the shoulder surface of the grinding wheel including the step of moving the second dressing wheel along a second path extending transversely to the first path, rotating the second dressing wheel about a second axis extending generally parallel to the shoulder surface of the grinding wheel and transversely to said first axis when the second dressing wheel is in engagement with the shoulder surface of the grinding wheel, and moving the second dressing wheel away from the shoulder surface of the grinding wheel after the shoulder surface of the grinding wheel has been dressed.
Claim 2
Independent Claim
363 words
A method of dressing the periphery of a rotatable grinding wheel having a circular main surface which extends at an acute angle to the axis of rotation of the grinding wheel and a circular shoulder surface extending transversely to the main surface, said method comprising the steps of rotating the grinding wheel, moving a first rotatable dressing wheel into engagement with the main surface of the rotating grinding wheel, said step of moving the first dressing wheel into engagement with the main surface of grinding wheel includes the step of moving the first dressing wheel along a first path which intersects the main surface on the grinding wheel, said first path extending substantially perpendicular to the axis of rotation of the grinding wheel and at an acute angle to the axis of rotation of the first dressing wheel to provide for engagement of the first dressing wheel with the main surface of the grinding wheel as the first dressing wheel is moved along the first path, rotating the first dressing wheel about a first axis extending generally parallel to the main surface of the grinding wheel when the first dressing wheel is in engagement with the main surface of the grinding wheel, moving the first dressing wheel away from the main surface of the grinding wheel after the main surface has been dressed, moving a second dressing wheel into engagement with the shoulder surface of the rotating grinding wheel after performing said step of moving the first dressing wheel away from the main surface of the grinding wheel, said step of moving the second dressing wheel into engagement with the shoulder surface of the grinding wheel including the step of moving the second dressing wheel along a second path extending transversely to the first path, rotating the second dressing wheel about a second axis extending generally parallel to the shoulder surface of the grinding wheel and transversely to said first axis when the second dressing wheel is in engagement with the shoulder surface of the grinding wheel, and moving the second dressing wheel away from the shoulder surface of the grinding wheel after the shoulder surface of the grinding wheel has been dressed.
Claim 3
Dependent Claim
41 words
A method as set forth in claim 1 further including the step of wiping the main surface of the grinding wheel by moving the first dressing wheel axially along a path extending parallel to the main surface of the grinding wheel.
Claim 4
Dependent Claim
83 words
A method as set forth in claim 1 wherein said step of moving the first dressing wheel into engagement with the main surface of the grinding wheel includes moving the first dressing wheel through a first distance along said first axis and said step of moving the second dressing wheel into engagement with the shoulder surface of the grinding wheel includes moving the first dressing wheel through a second distance along said first axis, said second distance being greater than said first distance.
Claim 5
Dependent Claim
68 words
A method as set forth in claim 1 wherein said step of moving the first dressing wheel into engagement with the main surface of the grinding wheel includes moving the first dressing wheel radially along the first path and said step of moving the second dressing wheel into engagement with the shoulder surface of the grinding wheel includes moving the second dressing wheel radially along the second path.
Claim 6
Dependent Claim
69 words
A method as set forth in claim 1 wherein said step of moving the first dressing wheel along the first path includes the step of moving the second dressing wheel along the first path with the first dressing wheel, said step of moving the second dressing wheel along the second path includes the step of moving the first dressing wheel along the second path with the second dressing wheel.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |