US3076295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel and dresser
Assignee: Saco Lowell Shops
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Filing: 1962-02-23
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Granted: 1963-02-05
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Cranston W Folley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:31
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/081; B24B41/00; B24B41/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
APPARATUS FOR GENERATING A TOROIDAL GROOVE SURFACE OF PROLATE SEMICICULAR CROSS-SECTION ON A WORKPIECE, COMPRISING A ROTATABLE GENERATING ELEMENT HAVING A PROLATE ELLIPSOID GENERATING SURFACE PORTION IN THE PLANE OF THE GROOVE SURFACE CROSS-SECTION TO BE GENERATED, MEANS SUPPORTING SAID GENERATING ELEMENT AND THE WORKPIECE FOR RELATIVE OSCILLATION ONE WITH RESPECT TO THE OTHER IN A CIRCULAR PATH ABOUT AN AXIS IN THE PLANE OF THE CENTER OF THE TOROID GROOVE TO BE GENERATED, THE SUM OF THE RADIUS OF SAID CIRCULAR OSCILLATION PATH AND OF SAID PROLATE ELLIPSOID GENERATING SURFACE PORTION BEING SUBSTANTIALLY EQUAL TO THE SAID PROLATE SEMICIRCULAR GROOVE CROSS-SECTION TO BE GENERATED, MEANS SUPPORTING SAID GENERATING ELEMENT FOR ROTATION ABOUT AN AXIS AT AN ANGLE TO SAID AXIS OF OSCILLATION, AND MEANS FOR MOVING SAID WORKPIECE RELATIVELY TO SAID GENERATING ELEMENT ABOUT THE AXIS OF THE TOROID GROOVE TO BE GENERATED.
Claim 2
Dependent Claim
144 words
APPARATUS FOR GENERATING A TOROIDAL GROOVE SURFACE OF PROLATE SEMICICULAR CROSS-SECTION ON A WORKPIECE, COMPRISING A ROTATABLE GENERATING ELEMENT HAVING A PROLATE ELLIPSOID GENERATING SURFACE PORTION IN THE PLANE OF THE GROOVE SURFACE CROSS-SECTION TO BE GENERATED, MEANS SUPPORTING SAID GENERATING ELEMENT AND THE WORKPIECE FOR RELATIVE OSCILLATION ONE WITH RESPECT TO THE OTHER IN A CIRCULAR PATH ABOUT AN AXIS IN THE PLANE OF THE CENTER OF THE TOROID GROOVE TO BE GENERATED, THE SUM OF THE RADIUS OF SAID CIRCULAR OSCILLATION PATH AND OF SAID PROLATE ELLIPSOID GENERATING SURFACE PORTION BEING SUBSTANTIALLY EQUAL TO THE SAID PROLATE SEMICIRCULAR GROOVE CROSS-SECTION TO BE GENERATED, MEANS SUPPORTING SAID GENERATING ELEMENT FOR ROTATION ABOUT AN AXIS AT AN ANGLE TO SAID AXIS OF OSCILLATION, AND MEANS FOR MOVING SAID WORKPIECE RELATIVELY TO SAID GENERATING ELEMENT ABOUT THE AXIS OF THE TOROID GROOVE TO BE GENERATED.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |