US3354587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine control system
Assignee: Pettibone Traverse Lift LLC
•
Filing: 1964-06-02
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Granted: 1967-11-28
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Expires: 1984-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Vincent Janis
- 👤 Gul P Bhatia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:30
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/07; B24B7/075; B24B49/00; B24B49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A SYSTEM FOR CONTROLLING A GRINDING MACHINE OF THE TYPE HAVING A MOVABLE CARRIAGE ADAPTED TO BE TRANVERSED ACROSS A BILLET WHOSE SURFACE IS ADAPTED TO BE GROUND BY A GRINDING WHEEL PIVOTALLY SUSPENDED ABOVE SAID BILLET BY SAID CARRIAGE AND WHEREIN FLUID RESPONSIVE MEANS ARE PROVIDED FOR EITHER LOWERING SAID WHEEL INTO ENGAGEMENT SAID BILLET OR RAISING SAID WHEEL FROM SAID BILLET WITH SAID WHEEL ADAPTED TO BE ROTATABLY DRIVEN FOR GRINDING SAID BILLET SURFACE, THE IMPROVEMENT COMPRISING OPTIONALLY OPERABLE MEANS FOR AUTOMATICALLY CONTROLLING SAID FLUID RESPONSIVE MEANS FOR LOWERING SAID WHEEL INTO ENGAGEMENT WITH SAID BILLET UNDER A PREDETERMINED PRESSURE, MEANS
Claim 2
Independent Claim
103 words
A SYSTEM FOR CONTROLLING A GRINDING MACHINE OF THE TYPE HAVING A MOVABLE CARRIAGE ADAPTED TO BE TRANVERSED ACROSS A BILLET WHOSE SURFACE IS ADAPTED TO BE GROUND BY A GRINDING WHEEL PIVOTALLY SUSPENDED ABOVE SAID BILLET BY SAID CARRIAGE AND WHEREIN FLUID RESPONSIVE MEANS ARE PROVIDED FOR EITHER LOWERING SAID WHEEL INTO ENGAGEMENT SAID BILLET OR RAISING SAID WHEEL FROM SAID BILLET WITH SAID WHEEL ADAPTED TO BE ROTATABLY DRIVEN FOR GRINDING SAID BILLET SURFACE, THE IMPROVEMENT COMPRISING OPTIONALLY OPERABLE MEANS FOR AUTOMATICALLY CONTROLLING SAID FLUID RESPONSIVE MEANS FOR LOWERING SAID WHEEL INTO ENGAGEMENT WITH SAID BILLET UNDER A PREDETERMINED PRESSURE, MEANS
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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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |