Patent US3129541A successfully refreshed from Google Patents.
US3129541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive tools
Assignee: Individual
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Filing: 1962-10-29
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Granted: 1964-04-21
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Field Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:34
CPC Classifications
B; B24; B24D; B24D9/00; B24D7/00; B24D7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
IN COMBINATION, A CONICALLY SHAPED SUPPORT MEMBER OF MOLDABLE MATERIAL, A THREADED OPENING THEREIN, A ROD THREADED INTO SAID OPENING, A COVERING OF ABRASIVE SHEET MATERIAL OVER THE SUPPORT MEMBER AND HAVING EXTENSIONS OF LIMITED WIDTH WHICH EXTEND AWAY FROM THE COVERING, SAID EXTENSIONS BEING FOLDED OVER THE BASE OF SAID MEMBER AND IN CONTACT THEREWITH, A FLANGE ON SAID ROD ENTERING INTO A RECESS IN THE SUPORT MEMBER WHEN THE ROD IS SCREWED THEREIN, SAID ROD HAVING A THREADED PORTION AT THE END REMOTE FROM THE BASE OF SAID SUPPORT MEMBER, A NUT RECEIVED BY THE THREADED PORTION OF THE ROD, A DISK LOOSELY MOUNTED ON SAID NUT AT THE END THEREOF NEARER THE SUPPORT MEMBER WHEREBY AS THE NUT IS TIGHTENED PRESSURE IS APPLIED AGAINST THE DISK, WHICH IN TURN SERVES TO CLAMP THE EXTENSIONS OF THE COVERING DIRECTLY AGAINST THE BASE OF THE SUPPORT MEMBER, AND WHEN THE NUT IS LOOSENED THE DISK IS MOVED AWAY FROM SAID BASE IN ORDER THAT THE COVERING CAN BE REMOVED FROM THE SUPPORT MEMBER AND A NEW COVERING APPLIED, AND A MANDREL ATTACHED TO AND FORMING PART OF SAID ROD IN ORDER TO ROTATE THE SUPPORT MEMBER AND ITS COVERING OF ABRASIVE SHEET MATERIAL AFTER THE NUT HAS BEEN TIGHTENED AND THE DISK IS PRESSED AGAINST THE SAID EXTENSIONS OF THE COVERING.
Claim 2
Dependent Claim
222 words
IN COMBINATION, A CONICALLY SHAPED SUPPORT MEMBER OF MOLDABLE MATERIAL, A THREADED OPENING THEREIN, A ROD THREADED INTO SAID OPENING, A COVERING OF ABRASIVE SHEET MATERIAL OVER THE SUPPORT MEMBER AND HAVING EXTENSIONS OF LIMITED WIDTH WHICH EXTEND AWAY FROM THE COVERING, SAID EXTENSIONS BEING FOLDED OVER THE BASE OF SAID MEMBER AND IN CONTACT THEREWITH, A FLANGE ON SAID ROD ENTERING INTO A RECESS IN THE SUPORT MEMBER WHEN THE ROD IS SCREWED THEREIN, SAID ROD HAVING A THREADED PORTION AT THE END REMOTE FROM THE BASE OF SAID SUPPORT MEMBER, A NUT RECEIVED BY THE THREADED PORTION OF THE ROD, A DISK LOOSELY MOUNTED ON SAID NUT AT THE END THEREOF NEARER THE SUPPORT MEMBER WHEREBY AS THE NUT IS TIGHTENED PRESSURE IS APPLIED AGAINST THE DISK, WHICH IN TURN SERVES TO CLAMP THE EXTENSIONS OF THE COVERING DIRECTLY AGAINST THE BASE OF THE SUPPORT MEMBER, AND WHEN THE NUT IS LOOSENED THE DISK IS MOVED AWAY FROM SAID BASE IN ORDER THAT THE COVERING CAN BE REMOVED FROM THE SUPPORT MEMBER AND A NEW COVERING APPLIED, AND A MANDREL ATTACHED TO AND FORMING PART OF SAID ROD IN ORDER TO ROTATE THE SUPPORT MEMBER AND ITS COVERING OF ABRASIVE SHEET MATERIAL AFTER THE NUT HAS BEEN TIGHTENED AND THE DISK IS PRESSED AGAINST THE SAID EXTENSIONS OF THE COVERING.
References Cited (Backward Citations)
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Cited
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Cited
US2797536A
Cited
US2826014A
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |