Patent US3142941A successfully refreshed from Google Patents.
US3142941A
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Grinding machine
Assignee: Saint Gobain Abrasives Inc
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Filing: 1962-10-03
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Granted: 1964-08-04
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Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 Roger H Fournier
- 👤 Glover C Joyce
- 👤 Harold A Schmucki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:42
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
IN A CRANKPIN GRINDING MACHINE HAVING POWER DRIVEN ROTATABLE WORK PIECE SUPPORTING MEANS AND MEANS OPERABLE AUTOMATICALLY TO PERFORM A SERIES OF GRINDING OPERATIONS UPON THE RESPECTIVE CRANKPINS OF A CRANKSHAFT, AXIAL INDEXING MEANS AUTOMATICALLY OPERABLE IN THE INTERVALS BETWEEN SUCCESSIVE GRINDING OPERATIONS TO POSITION SUCCESSIVE CRANKPINS FOR THE NEXT GRINDING OPERATION, ANGULAR INDEXING MEANS AUTOMATICALLY OPERABLE IN THE SAME INTERVALS BETWEEN SUCCESSIVE GRINDING OPERATIONS BY ENGAGEMENT WITH A CRANKPIN OF A ROTATING CRANKSHAFT TO POSITION SUCCESSIVE CRANKPINS ANGULARLY FOR THE NEXT GRINDING OPERATION, AND BY-PASS MEANS ACTUATED DURING A GIVEN INTERVAL BY SAID AXIAL INDEXING MEANS OPERABLE TO INACTIVATE SAID ANGULAR INDEXING MEANS DURING THE NEXT SUCCEEDING INTERVAL WHEN THE CRANKPIN SUBJECT TO THE NEXT GRINDING OPERATION IS COAXIAL WITH THE CRANKPIN SUBJECT TO THE PREVIOUS GRINDING OPERATION.
References Cited (Backward Citations)
USRE24091E
Cited
US2014768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |