US3290834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel
Assignee: Individual
•
Filing: 1964-07-15
•
Granted: 1966-12-13
•
Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Lindblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:58
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/02; B24D7/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A GRINDING WHEEL COMPRISING A BODY HAVING MEANS FOR MOUNTING THE SAME FOR ROTATION ABOUT THE LONGITUDINAL AXIS OF THE BODY, A SEAT SECURED TO THE BODY AND BEING CENTERED ON SAID AXIS, AND A GRINDING RING SECURED TO THE SEAT, SAID SEAT BEING OF A MATERIAL HAVING A HIGH THERMAL CONDUCTIVITY AS COMPARED TO THAT OF THE GRINDING RING AND THE PART OF THE BODY ADJACENT TO THE SEAT, SAID SEAT BETWEEN THE GRINDING RING AND BODY BEING RELATIVELY THICK AS COMPARED TO THE THICKNESS OF THE GRINDING RING TO PROVIDE SUFFICIENT SURFACE AREA PRESENTED TO THE ATMOSPHERE TO DISSIPATE A SUBSTANTIAL AMOUNT OF HEAT FROM THE GRINDING RING AND THEREBY PREVENT AN EXCESSIVE INCREASE IN TEMPERATURE OF THE GRINDING RING.
References Cited (Backward Citations)
US2137201A
Cited
US3161995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |