Patent US3383091A successfully refreshed from Google Patents.
Patent US3265167A successfully refreshed from Google Patents.
US3265167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral molded piston and lining for brakes and method for forming thereof
Assignee: Goodyear Tire and Rubber Co
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Filing: 1964-07-10
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Granted: 1966-08-09
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold N Yazell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:59
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D55/00; F16D55/24; F16D55/26; F16D55/28; F16D55/32; F16D65/00; F16D65/02; F16D65/04; F16D65/092; F16D2055/0004; F16D2055/0062; F16D2125/00; F16D2125/02; F16D2125/06; F16D2125/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN AN INTEGRALLY MOLDED PISTON AND LINING FOR BRAKES THE COMBINATION OF A CYLINDRICALLY SHAPED PISTON MADE FROM A HEAT CURED THERMOSETTING EPOXY RESIN BONDING AGENT MIXED WITH ASBESTOS POWDER, SAID PISTON HAVING A REDUCED DIAMETER PORTION AT ONE END THEREOF TO PROVIDE A SEALING SURFACE AND A RECESSED PORTION INSIDE THE REDUCED DIAMETER PORTION TO ELIMINATE WEIGHT, AND TO PROVIDE SUBSTANTIALLY UNIFORM CROSS SECTIONAL AREAS IN THE PISTON, AND A FRICTION DISC MADE FROM A HEAT CURED THERMOSETTING EPOXY RESIN BONDING AGENT MIXED WITH ASBESTOS POWDER AND INCLUDING IRON POWDER, BRASS CHIPS AND GRAPHITE TO PROVIDE A FRICTION SURFACE, SAID FRICTION DISC BEING FUSED BY HEAT AND PRESSURE TO THE OTHER END OF SAID PISTON BY THE COMMON EPOXY RESIN BONDING AGENT IN THE PISTON AND THE FRICTION DISC.
Claim 2
Dependent Claim
130 words
IN AN INTEGRALLY MOLDED PISTON AND LINING FOR BRAKES THE COMBINATION OF A CYLINDRICALLY SHAPED PISTON MADE FROM A HEAT CURED THERMOSETTING EPOXY RESIN BONDING AGENT MIXED WITH ASBESTOS POWDER, SAID PISTON HAVING A REDUCED DIAMETER PORTION AT ONE END THEREOF TO PROVIDE A SEALING SURFACE AND A RECESSED PORTION INSIDE THE REDUCED DIAMETER PORTION TO ELIMINATE WEIGHT, AND TO PROVIDE SUBSTANTIALLY UNIFORM CROSS SECTIONAL AREAS IN THE PISTON, AND A FRICTION DISC MADE FROM A HEAT CURED THERMOSETTING EPOXY RESIN BONDING AGENT MIXED WITH ASBESTOS POWDER AND INCLUDING IRON POWDER, BRASS CHIPS AND GRAPHITE TO PROVIDE A FRICTION SURFACE, SAID FRICTION DISC BEING FUSED BY HEAT AND PRESSURE TO THE OTHER END OF SAID PISTON BY THE COMMON EPOXY RESIN BONDING AGENT IN THE PISTON AND THE FRICTION DISC.
References Cited (Backward Citations)
CA614633A
Cited
US2191703A
Cited
US2406653A
Cited
US2901852A
Cited
US2801714A
Cited
US3052326A
Cited
US3090468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |