US3269064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Heald Machine Co
•
Filing: 1964-01-17
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Granted: 1966-08-30
•
Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 George H Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:21
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A GRINDING MACHINE FOR USE WITH A WORKPIECE HAVING OUTER AND INNER SURFACES OF REVOLUTION, COMPRISING (A) A WORK SUPPORT HAVING A BORE WHICH IS ONLY SLIGHTLY LARGER THAN THE OUTER SURFACE OF THE WORKPIECE AND IN WHICH THE WORKPIECE RESIDES, (B) MEANS RESTRICTING THE WORKPIECE TO THE BORE DURING GRINDING, AND (C) MEANS PROVIDING FLUID UNDER PRESSURE TO THE SPACE BETWEEN THE WORKPIECE AND THE BORE, THE BORE BEING LOCATED IN A PLATE MEMBER WHICH IS SUPPORTED BY TWO PLATES, ONE OF EACH SIDE, THE PLATES BEING PROVIDED WITH APERTURES WHICH ARE ADAPTED TO BE AXIALLY ALIGNED WITH THE BORE.
Claim 2
Dependent Claim
101 words
A GRINDING MACHINE FOR USE WITH A WORKPIECE HAVING OUTER AND INNER SURFACES OF REVOLUTION, COMPRISING (A) A WORK SUPPORT HAVING A BORE WHICH IS ONLY SLIGHTLY LARGER THAN THE OUTER SURFACE OF THE WORKPIECE AND IN WHICH THE WORKPIECE RESIDES, (B) MEANS RESTRICTING THE WORKPIECE TO THE BORE DURING GRINDING, AND (C) MEANS PROVIDING FLUID UNDER PRESSURE TO THE SPACE BETWEEN THE WORKPIECE AND THE BORE, THE BORE BEING LOCATED IN A PLATE MEMBER WHICH IS SUPPORTED BY TWO PLATES, ONE OF EACH SIDE, THE PLATES BEING PROVIDED WITH APERTURES WHICH ARE ADAPTED TO BE AXIALLY ALIGNED WITH THE BORE.
References Cited (Backward Citations)
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |