US3188922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction device operating mechanism
Assignee: Echlin Inc
•
Filing: 1962-10-12
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Granted: 1965-06-15
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Oliver B Cruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:02
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; B; B60; B60T; B60T17/00; B60T17/08; B60T17/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A FRICTION DEVICE OPERATING MECHANISM COMPRISING AN EXPANSIBLE CHAMBER, RESILIENTLY URGED MEANS OPPOSING EXPANSION OF SAID CHAMBER, ANOTHER EXPANSIBLE CHAMBER IN SAID RESILIENTLY URGED MEANS, ACTUATOR MEANS OPPOSING EXPANSION OF SAID OTHER CHAMBER AND HAVING A WORKING END THEREOF, MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID OTHER CHAMBER, SAID ACTUATOR MEANS BEING MOVABLE IN A WORKING DIRECTION IN RESPONSE TO FLUID PRESSURE IN SAID OTHER CHAMBER TO ENERGIZE THE WORKING END THEREOF, AND OTHER MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID FIRST NAMED CHAMBER, SAID RESILIENTLY URGED MEANS URGING SAID ACTUATOR MEANS IN A WORKING DIRECTION TO ENERGIZE THE WORKING END THEREOF WHEN THE FLUID PRESSURE IN SAID FIRST NAMED CHAMBER IS LESS THAN A PREDETERMINED AMOUNT.
Claim 2
Dependent Claim
117 words
A FRICTION DEVICE OPERATING MECHANISM COMPRISING AN EXPANSIBLE CHAMBER, RESILIENTLY URGED MEANS OPPOSING EXPANSION OF SAID CHAMBER, ANOTHER EXPANSIBLE CHAMBER IN SAID RESILIENTLY URGED MEANS, ACTUATOR MEANS OPPOSING EXPANSION OF SAID OTHER CHAMBER AND HAVING A WORKING END THEREOF, MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID OTHER CHAMBER, SAID ACTUATOR MEANS BEING MOVABLE IN A WORKING DIRECTION IN RESPONSE TO FLUID PRESSURE IN SAID OTHER CHAMBER TO ENERGIZE THE WORKING END THEREOF, AND OTHER MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID FIRST NAMED CHAMBER, SAID RESILIENTLY URGED MEANS URGING SAID ACTUATOR MEANS IN A WORKING DIRECTION TO ENERGIZE THE WORKING END THEREOF WHEN THE FLUID PRESSURE IN SAID FIRST NAMED CHAMBER IS LESS THAN A PREDETERMINED AMOUNT.
References Cited (Backward Citations)
US2754805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |