US3113405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintaining constant peripheral speed of a grinding wheel to compensatefor wheel wear
Assignee: Saint Gobain Abrasives Inc
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Filing: 1961-08-11
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Granted: 1963-12-10
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Robert V Schneider
- 👤 Lennart A Kasparson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:45
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/10; B24B47/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A GRINDING MACHINE, A GRINDING WHEEL, A MOTOR FOR DRIVING THE GRINDING WHEEL AND MEANS FOR MAINTAINING THE SURFACE SPEED OF THE WHEEL CONSTANT AS THE WHEEL WEARS, COMPRISING AN ELONGATED SENSING DEVICE FIXEDLY SECURED RADIALLY OF THE GRINDING WHEEL AND OPERABLE, IN RESPONSE TO A REDUCTION IN THE RADIUS OF THE WHEEL, TO PRODUCE A SIGNAL OF INCREASED MAGNITUDE, A COMPENSATOR RESPONSIVE TO AN INCREASE IN THE SIGNAL TO INCREASE THE SPEED OF THE MOTOR, AND A FEED-BACK OPERATED BY THE MOTOR IN RESPONSE TO AN INCREASE IN THE SPEED OF THE MOTOR SUFFICIENT TO MAINTAIN THE SURFACE SPEED OF THE WHEEL CONSTANT TO NULLIFY THE EFFECT OF THE INCREASE IN THE SIGNAL.
Claim 2
Dependent Claim
115 words
IN A GRINDING MACHINE, A GRINDING WHEEL, A MOTOR FOR DRIVING THE GRINDING WHEEL AND MEANS FOR MAINTAINING THE SURFACE SPEED OF THE WHEEL CONSTANT AS THE WHEEL WEARS, COMPRISING AN ELONGATED SENSING DEVICE FIXEDLY SECURED RADIALLY OF THE GRINDING WHEEL AND OPERABLE, IN RESPONSE TO A REDUCTION IN THE RADIUS OF THE WHEEL, TO PRODUCE A SIGNAL OF INCREASED MAGNITUDE, A COMPENSATOR RESPONSIVE TO AN INCREASE IN THE SIGNAL TO INCREASE THE SPEED OF THE MOTOR, AND A FEED-BACK OPERATED BY THE MOTOR IN RESPONSE TO AN INCREASE IN THE SPEED OF THE MOTOR SUFFICIENT TO MAINTAIN THE SURFACE SPEED OF THE WHEEL CONSTANT TO NULLIFY THE EFFECT OF THE INCREASE IN THE SIGNAL.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |