US3616581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing and grinding rotary finishing tool
Assignee: General Electric Co
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Filing: 1969-10-08
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Granted: 1971-11-02
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Expires: 1989-10-08
Abstract
Abstract A NON LOADING, SELF-CLEANING ROTARY SURFACE FINISHING ASSEMBLY FOR BOTH GRINDING AND POLISHING OPERATIONS USING THE SAME ABRASIVE GIRT. THE ASSEMBLY INCLUDES A RIGID BACKUP PAD AND A COMPOSITE FRONT PLATE HAVING INTEGRAL FLEXIBLE FINGERS EXTENDING RADIALLY BEYOND AND BACKUP PAD. A PLURALITY OF RADIALLY ARRAYED, OVERLAPING, GENERALLY TAPERED FLAPS, EXTENDING OUT FROM THE FINGERS, ARE CLAMPED IN PLACE BETWEEN THE BACKUP PLATE AND A RIGID CENTRAL PORTION ON THE FRONT PLATE. THE OUTER PERIPHERY AND TRAILING EDGE OF EACH FLAP IS ARCUATE, AND THE TRAILING EDGE PREF- ERABLY HAS A NOTCH NEAR ITS INNERMOST END FOR IMPROVED WEAR LIFE.
Inventors
- 👤 Roger W Johnson
- 👤 Steve M Senko
- 👤 Frank J Sienkiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:36
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/14; B24D13/16; A; A24; A24D; A24D3/00; A24D3/02; B24D9/00
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |