US3200543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive wheel and method of making the same
Assignee: Unifrax I LLC
•
Filing: 1962-04-18
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Granted: 1965-08-17
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph R O'neil
- 👤 Alphonse J Kirsch
- 👤 Halsey W Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:46
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A REPLACEABLE ABRASIVE WHEEL UNIT COMPRISING AN ANNULUS OF ABRASIVE COATED LEAVES, SAID LEAVES BEING BONDED SOLELY AT THEIR INNER EDGES BY A UNITARY CYLINDRICAL COLLAR OF SUBSTANTIAL THICKNESS HAVING ITS ENDS NORMAL TO THE AXIS THEREOF, SAID COLLAR BEING FORMED OF HARDENED ADHESIVE RESIN POURED IN PLACE AND CONFORMING AT ITS INNER PERIPHERY TO A SLEEVE OF A HUB SECTION ON WHICH THE WHEEL UNIT IS ADAPTED TO BE MOUNTED, AND A CIRCULAR GROOVE FORMED IN EACH LATERAL FACE OF SAID ANNULUS CONCENTRIC WITH THE LONGITUDINAL AXIS OF THE WHEEL UNIT AND ADAPTED TO RECEIVE A CIRCULAR RIB FORMED ON A RADIALLY EXTENDING FLANGE OF A HUB SECTION.
Claim 2
Dependent Claim
109 words
A REPLACEABLE ABRASIVE WHEEL UNIT COMPRISING AN ANNULUS OF ABRASIVE COATED LEAVES, SAID LEAVES BEING BONDED SOLELY AT THEIR INNER EDGES BY A UNITARY CYLINDRICAL COLLAR OF SUBSTANTIAL THICKNESS HAVING ITS ENDS NORMAL TO THE AXIS THEREOF, SAID COLLAR BEING FORMED OF HARDENED ADHESIVE RESIN POURED IN PLACE AND CONFORMING AT ITS INNER PERIPHERY TO A SLEEVE OF A HUB SECTION ON WHICH THE WHEEL UNIT IS ADAPTED TO BE MOUNTED, AND A CIRCULAR GROOVE FORMED IN EACH LATERAL FACE OF SAID ANNULUS CONCENTRIC WITH THE LONGITUDINAL AXIS OF THE WHEEL UNIT AND ADAPTED TO RECEIVE A CIRCULAR RIB FORMED ON A RADIALLY EXTENDING FLANGE OF A HUB SECTION.
References Cited (Backward Citations)
US2948090A
Cited
US2698783A
Cited
US2936553A
Cited
US2843469A
Cited
US2882139A
Cited
US2886924A
Cited
US3028709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |