US3112014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensating brake structure
Assignee: Individual
•
Filing: 1961-01-30
•
Granted: 1963-11-26
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Dan W Jeffries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:29
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/228; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A BRAKE STRUCTURE: A SUPPORT HAVING MEANS FORMING A CYLINDER; A BRAKE OPERATING PISTON MOVABLE IN THE CYLINDER; A SEALING RING BETWEEN THE BRAKE OPERATING PISTON AND THE CYLINDER AND CAPABLE OF MOVEMENT ALONG THE CYLINDER AND ALONG THE PISTON; A FRICTION RING SECURED TO THE PISTON FOR MOVEMENT THEREWITH AND CAPABLE OF MOVEMENT ALONG THE BRAKE OPERATING PISTON ONLY UPON APPLICATION OF ADEQUATE FORCE THEREBETWEEN; SAID SEALING RING UPON APPLICATION OF PRESSURE IN SAID CYLINDER, ACTING UPON SAID FRICTION RING AND MOVING THEREWITH; MEANS CARRIED BY THE SUPPORT FOR LIMITING MOVEMENT OF THE FRICTION RING AS THE SEALING RING ADVANCES; AND SPRING MEANS FOR RETRACTING THE FRICTION RING UPON RELEASE OF FLUID PRESSURE.
Claim 2
Dependent Claim
115 words
IN A BRAKE STRUCTURE: A SUPPORT HAVING MEANS FORMING A CYLINDER; A BRAKE OPERATING PISTON MOVABLE IN THE CYLINDER; A SEALING RING BETWEEN THE BRAKE OPERATING PISTON AND THE CYLINDER AND CAPABLE OF MOVEMENT ALONG THE CYLINDER AND ALONG THE PISTON; A FRICTION RING SECURED TO THE PISTON FOR MOVEMENT THEREWITH AND CAPABLE OF MOVEMENT ALONG THE BRAKE OPERATING PISTON ONLY UPON APPLICATION OF ADEQUATE FORCE THEREBETWEEN; SAID SEALING RING UPON APPLICATION OF PRESSURE IN SAID CYLINDER, ACTING UPON SAID FRICTION RING AND MOVING THEREWITH; MEANS CARRIED BY THE SUPPORT FOR LIMITING MOVEMENT OF THE FRICTION RING AS THE SEALING RING ADVANCES; AND SPRING MEANS FOR RETRACTING THE FRICTION RING UPON RELEASE OF FLUID PRESSURE.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |