US3327432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Heald Machine Co
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Filing: 1964-06-11
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Granted: 1967-06-27
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 George H Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:31
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN INTERNAL GRINDING MACHINE, COMPRISING (A) A BASE ON WHICH ARE MOUNTED A WORKHEAD HAVING A WORKPIECE-HOLDING MEANS, A WHEELHEAD HAVING A ROTATABLE ABRASIVE WHEEL, AND A DRESSER, (B) MEANS BRINGING ABOUT RELATIVE MOVEMENT TRANSVERSELY OF THE WHEEL AXIS BETWEEN THE WHEELHEAD AND THE WORKHEAD TO PRODUCE GRINDING CYCLES ON SUCCESSIVE WORKPIECES, (C) MEANS BRINGING ABOUT A COMPENSATING TRANSVERSE MOVEMENT ON OCCASION, (D) MEANS MAKING A DETERMINATION OF THE TOTAL AMOUNT OF WHEEL WEAR WHICH HAS TAKEN PLACE SINCE THE LAST COMPENSATING MOVEMENT AT THE END OF EACH GRINDING CYCLE AND CAUSING A COMPENSATING TRANSVERSE MOVEMENT WHEN THE WHEEL WEAR EXCEEDS A PREDETERMINED AMOUNT, AND (E) MEANS BRINGING ABOUT A DRESSING OPERATION AFTER A PREDETERMINED NUMBER OF COMPENSATING MOVEMENTS HAVE TAKEN PLACE SINCE THE LAST DRESSING OPERATION.
Claim 2
Dependent Claim
127 words
AN INTERNAL GRINDING MACHINE, COMPRISING (A) A BASE ON WHICH ARE MOUNTED A WORKHEAD HAVING A WORKPIECE-HOLDING MEANS, A WHEELHEAD HAVING A ROTATABLE ABRASIVE WHEEL, AND A DRESSER, (B) MEANS BRINGING ABOUT RELATIVE MOVEMENT TRANSVERSELY OF THE WHEEL AXIS BETWEEN THE WHEELHEAD AND THE WORKHEAD TO PRODUCE GRINDING CYCLES ON SUCCESSIVE WORKPIECES, (C) MEANS BRINGING ABOUT A COMPENSATING TRANSVERSE MOVEMENT ON OCCASION, (D) MEANS MAKING A DETERMINATION OF THE TOTAL AMOUNT OF WHEEL WEAR WHICH HAS TAKEN PLACE SINCE THE LAST COMPENSATING MOVEMENT AT THE END OF EACH GRINDING CYCLE AND CAUSING A COMPENSATING TRANSVERSE MOVEMENT WHEN THE WHEEL WEAR EXCEEDS A PREDETERMINED AMOUNT, AND (E) MEANS BRINGING ABOUT A DRESSING OPERATION AFTER A PREDETERMINED NUMBER OF COMPENSATING MOVEMENTS HAVE TAKEN PLACE SINCE THE LAST DRESSING OPERATION.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |