US3136227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake operating mechanism
Assignee: Rockwell-Standard Corp
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Filing: 1960-08-29
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Granted: 1964-06-09
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 William J Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/085; B60T17/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A BRAKE ACTUATOR, A CASING ASSEMBLY DEFINING A SERVICE CHAMBER AND AN EMERGENCY CHAMBER HAVING A WALL BETWEEN THEM, A FIRST FLUID PRESSURE RESPONSIVE MEMBER IN SAID SERVICE CHAMBER ENCLOSING AN INNER FLUID PRESSURE CONTROL SPACE ADJACENT SAID WALL AND HAVING AN OUTER CONNECTION FOR BRAKE MECHANISM, A SECOND FLUID PRESSURE RESPONSIVE MEMBER IN SAID EMERGENCY CHAMBER ENCLOSING A FLUID PRESSURE CONTROL SPACE ADJACENT SAID WALL AND HAVING A PORTION EXTENSIBLE THROUGH SAID WALL FOR OPERATIVE ABUTMENT WITH SAID FIRST MEMBER, SPRING
Claim 2
Dependent Claim
83 words
IN A BRAKE ACTUATOR, A CASING ASSEMBLY DEFINING A SERVICE CHAMBER AND AN EMERGENCY CHAMBER HAVING A WALL BETWEEN THEM, A FIRST FLUID PRESSURE RESPONSIVE MEMBER IN SAID SERVICE CHAMBER ENCLOSING AN INNER FLUID PRESSURE CONTROL SPACE ADJACENT SAID WALL AND HAVING AN OUTER CONNECTION FOR BRAKE MECHANISM, A SECOND FLUID PRESSURE RESPONSIVE MEMBER IN SAID EMERGENCY CHAMBER ENCLOSING A FLUID PRESSURE CONTROL SPACE ADJACENT SAID WALL AND HAVING A PORTION EXTENSIBLE THROUGH SAID WALL FOR OPERATIVE ABUTMENT WITH SAID FIRST MEMBER, 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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |