Patent US3129749A successfully refreshed from Google Patents.
Patent US3562959A successfully refreshed from Google Patents.
US3562959A
Expired / Lapsed
US
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Manual snagging grinders
Assignee: Unifrax I LLC
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Filing: 1968-11-20
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Granted: 1971-02-16
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Expires: 1988-11-20
Abstract
Abstract A MANUAL SNAGGING GRINDER SUSPENDED IN A POSITION TO LOCATE THE WHEEL OVER THE WORK, SUCH AS A BILLET, AND TO REMOVE SURFACE MATERIAL THEREFROM. THE GRINDING WHEEL IS SUPPORTED ON A FRAME FOR VERTICAL SWINGING MOTION AND FOR HORIZONTAL ROCKING MOTION, THE VERTICAL MOTION IS CONTROLLED BY POWER MEANS, SUCH AS A PNEUMATIC CYLINDER. THE ROCKING MOTION IS ON AN AXIS SUBSTANTIALLY THROUGH THE POINT OF CONTACT OF THE GRINDING WHEEL WITH WORK.
Inventors
- 👤 Peter C Dooley Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:48
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/07; B24B7/075; B24B27/00; B24B27/0015; B24B27/033; B24B27/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |