US3116056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction brake
Assignee: Individual
•
Filing: 1960-08-05
•
Granted: 1963-12-31
•
Expires: 1980-08-05
Abstract
No abstract record available.
Inventors
- 👤 Karl W Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:34
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/02; F16F3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A FRICTION BRAKE FOR ARRESTING THE TRAVEL OF A RECIPROCATING HOUSING IN EITHER DIRECTION COMPRISING A STATIONARY MEMBER HAVING FIXED STOPS AT OPPOSITE ENDS, AN ELONGATED SPRING RETAINER DISPOSED IN SAID HOUSING FOR LONGITUDINAL MOVEMENT BETWEEN SAID FIXED STOPS, AN INNER SPRING HAVING A PLURALITY OF HELICAL COILS SURROUNDING SAID RETAINER, AN OUTER SPRING HAVING A PLURALITY OF HELICAL COILS SURROUNDING SAID INNER SPRING COILS IN ALTERNATE NESTED ARRANGEMENT, AN ACTUATOR SPRING SURROUNDING SAID RETAINER IN ADJACENT LONGITUDINAL ALIGNMENT WITH SAID INNER SPRING, A SEPARATOR SURROUNDING SAID RETAINER BETWEEN SAID INNER AND SAID ACTUATOR SPRINGS, A FLANGE AT EACH END OF SAID RETAINER ENGAGEABLE WITH THE CORRESPONDING ENDS OF SAID INNER AND SAID ACTUATOR SPRINGS AND POSITIONED TO CONTINUALLY URGE SAID SEPARATOR TO COMPRESS SAID INNER SPRING AND EXPAND SAID OUTER SPRING INTO FRICTIONAL ENGAGEMENT WITH THE INTERIOR WALL SURFACE OF SAID HOUSING WHEREBY SAID RETAINER MOVES TOGETHER WITH SAID HOUSING UNTIL HALTED BY CONTACT WITH ONE OF SAID FIXED STOPS, SO THAT THE CONTINUED TRAVEL OF SAID HOUSING IS FINALLY ARRESTED BY SAID OUTER SPRING.
Claim 2
Dependent Claim
176 words
A FRICTION BRAKE FOR ARRESTING THE TRAVEL OF A RECIPROCATING HOUSING IN EITHER DIRECTION COMPRISING A STATIONARY MEMBER HAVING FIXED STOPS AT OPPOSITE ENDS, AN ELONGATED SPRING RETAINER DISPOSED IN SAID HOUSING FOR LONGITUDINAL MOVEMENT BETWEEN SAID FIXED STOPS, AN INNER SPRING HAVING A PLURALITY OF HELICAL COILS SURROUNDING SAID RETAINER, AN OUTER SPRING HAVING A PLURALITY OF HELICAL COILS SURROUNDING SAID INNER SPRING COILS IN ALTERNATE NESTED ARRANGEMENT, AN ACTUATOR SPRING SURROUNDING SAID RETAINER IN ADJACENT LONGITUDINAL ALIGNMENT WITH SAID INNER SPRING, A SEPARATOR SURROUNDING SAID RETAINER BETWEEN SAID INNER AND SAID ACTUATOR SPRINGS, A FLANGE AT EACH END OF SAID RETAINER ENGAGEABLE WITH THE CORRESPONDING ENDS OF SAID INNER AND SAID ACTUATOR SPRINGS AND POSITIONED TO CONTINUALLY URGE SAID SEPARATOR TO COMPRESS SAID INNER SPRING AND EXPAND SAID OUTER SPRING INTO FRICTIONAL ENGAGEMENT WITH THE INTERIOR WALL SURFACE OF SAID HOUSING WHEREBY SAID RETAINER MOVES TOGETHER WITH SAID HOUSING UNTIL HALTED BY CONTACT WITH ONE OF SAID FIXED STOPS, SO THAT THE CONTINUED TRAVEL OF SAID HOUSING IS FINALLY ARRESTED BY SAID OUTER SPRING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |