US3081584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive wheel
Assignee: GEORGE H BULLARD CO Inc
•
Filing: 1962-06-12
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Granted: 1963-03-19
•
Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Robert A Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:25
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN ABRASIVE WHEEL FOR USE WITH A GRINDER, COMPRISING A DISK CONSISTING OF A PLURALITY OF LAYERS OF FIBERGLASS FABRIC IMPREGNATED WITH A MIXTURE OF AN ABRASIVE POWDER AND A BONDING AGENT, A METALLIC HUB FASTENED TO THE CENTER OF THE DISK AND EXTENDING FROM THE SIDE ONLY, A THREADED APERTURE IN THE HUB FOR FASTENING IT TO THE GRINDER, AN APERTURE THROUGH THE DISK, A TUBULAR PROJECTION ON THE HUB EXTENDING THROUGH THE APERTURE, THE APERTURE HAVING A COUNTERSUNK PORTION AT THE SIDE OPPOSITE THE SIDE FROM WHICH THE HUB PROJECTS, THE TUBLUAR PROJECTION HAVING A WALL THICKNESS CONSIDERABLY LESS THAN THAT OF THE HUB IN THE REGION OF THE THREADED APERTURE, THE TUBULAR PROJECTION BEING SWAGED INTO THE COUNTERSUNK PORTION SO AS TO BE ENTIRELY BELOW THE SURFACE OF THE WHEEL, THE HUB HAVING A BOARD INTEGRAL FLANGE EXTENDING LATERALLY OVER THE SAID ONE SIDE OF THE DISK, THE FLANGE BEING CEMENTED TO THE DISK.
Claim 2
Dependent Claim
157 words
AN ABRASIVE WHEEL FOR USE WITH A GRINDER, COMPRISING A DISK CONSISTING OF A PLURALITY OF LAYERS OF FIBERGLASS FABRIC IMPREGNATED WITH A MIXTURE OF AN ABRASIVE POWDER AND A BONDING AGENT, A METALLIC HUB FASTENED TO THE CENTER OF THE DISK AND EXTENDING FROM THE SIDE ONLY, A THREADED APERTURE IN THE HUB FOR FASTENING IT TO THE GRINDER, AN APERTURE THROUGH THE DISK, A TUBULAR PROJECTION ON THE HUB EXTENDING THROUGH THE APERTURE, THE APERTURE HAVING A COUNTERSUNK PORTION AT THE SIDE OPPOSITE THE SIDE FROM WHICH THE HUB PROJECTS, THE TUBLUAR PROJECTION HAVING A WALL THICKNESS CONSIDERABLY LESS THAN THAT OF THE HUB IN THE REGION OF THE THREADED APERTURE, THE TUBULAR PROJECTION BEING SWAGED INTO THE COUNTERSUNK PORTION SO AS TO BE ENTIRELY BELOW THE SURFACE OF THE WHEEL, THE HUB HAVING A BOARD INTEGRAL FLANGE EXTENDING LATERALLY OVER THE SAID ONE SIDE OF THE DISK, THE FLANGE BEING CEMENTED TO THE DISK.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |