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US3132452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary abrasive device
Assignee: Merit Products Inc
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Filing: 1962-02-23
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Granted: 1964-05-12
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Block Aleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:14
CPC Classifications
B; B24; B24D; B24D9/00; B24D9/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN AN ABRASIVE DEVICE COMPRISING A ROTARY HOUSING HAVING AN OPEN END, A CLOSED END AND A CYLINDRICAL WALL, SAID CYLINDRICAL WALL HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED LONGITUDINAL SLOTS, A CORRESPONDING PLURALITY OF BRUSHES EXTENDING RADIALLY FROM THE HOUSING AND ADJACENT SAID SLOTS RESPECTIVELY, A DISPOSABLE ABRASION ASSEMBLY COMPRISING A REEL SLEEVE HAVING EXTERNAL AND INTERNAL SURFACES AND A PLURALITY OF ABRASIVE RIBBONS WOUND TIGHTLY ON THE EXTERNAL SURFACE OF THE REEL SLEEVE AND ANCHORED AT THEIR INNER ENDS TO THE REEL SLEEVE, THE OUTER ENDS OF THE RIBBONS EXTENDING THROUGH SAID SLOTS RESPECTIVELY FOR REINFORCEMENT BY SAID RADIAL BRUSHES WHEN THE HOUSING ROTATES, AND A CONTROL CORE TELESCOPED INTO SAID REEL SLEEVE IN OPERATIVE ENGAGEMENT THEREWITH TO CONTROL THE ROTARY POSITION OF THE REEL SLEEVE, THE IMPROVEMENT COMPRISING:
Claim 2
Dependent Claim
130 words
IN AN ABRASIVE DEVICE COMPRISING A ROTARY HOUSING HAVING AN OPEN END, A CLOSED END AND A CYLINDRICAL WALL, SAID CYLINDRICAL WALL HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED LONGITUDINAL SLOTS, A CORRESPONDING PLURALITY OF BRUSHES EXTENDING RADIALLY FROM THE HOUSING AND ADJACENT SAID SLOTS RESPECTIVELY, A DISPOSABLE ABRASION ASSEMBLY COMPRISING A REEL SLEEVE HAVING EXTERNAL AND INTERNAL SURFACES AND A PLURALITY OF ABRASIVE RIBBONS WOUND TIGHTLY ON THE EXTERNAL SURFACE OF THE REEL SLEEVE AND ANCHORED AT THEIR INNER ENDS TO THE REEL SLEEVE, THE OUTER ENDS OF THE RIBBONS EXTENDING THROUGH SAID SLOTS RESPECTIVELY FOR REINFORCEMENT BY SAID RADIAL BRUSHES WHEN THE HOUSING ROTATES, AND A CONTROL CORE TELESCOPED INTO SAID REEL SLEEVE IN OPERATIVE ENGAGEMENT THEREWITH TO CONTROL THE ROTARY POSITION OF THE REEL SLEEVE, THE IMPROVEMENT COMPRISING:
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |