US3358449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position control power brake
Assignee: Midland Ross Corp
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Filing: 1966-11-18
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Granted: 1967-12-19
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Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Curtis L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:31
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/573
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A POWER BRAKE MECHANISM COMPRISING A HOUSING AND A PRESSURE RESPONSIVE WALL FORMING THEREWITH CHAMBERS OF OPPOSITE SIDES OF SAID WALL, VALVE MEANS HAVING A NORMAL POSITION BALANCING PRESSURES IN SAID CHAMBERS AND HAVING A CONNECTION WITH A SOURCE OF PRESSURE TO VARY THE PRESSURE IN ONE OF SAID CHAMBERS TO MOVE SAID WALL IN A PREDETERMINED RANGE UPON MOVEMENT OF SAID VALVE MEANS FROM SAID NORMAL POSITION, ACTUATING MEANS FOR MOVING SAID VALVE MEANS FOR SAID NORMAL POSITION IN RESPONSE TO MANUAL EFFORT AND BEING MOVABLE IN A PREDETERMINED RANGE DURING MOVEMENT OF SAID WALL IN ITS PREDETERMINED RANGE INDEPENDENTLY OF REACTION FORCES RESULTING FROM MOVEMENT OF SAID WALL, AND REACTION MEANS OPERATIVELY DISPOSED BETWEEN SAID ACTUATING MEANS AND SAID HOUSING AND ACTING INDEPENDENTLY OF SAID WALL TO RESILIENTLY RESIST MOVEMENT OF SAID ACTUATING MEANS IN ONE DIRECTION IN A SUBSTANTIALLY DIRECT RATIO TO THE FORCE DEVELOPED BY SAID WALL.
Claim 2
Dependent Claim
151 words
A POWER BRAKE MECHANISM COMPRISING A HOUSING AND A PRESSURE RESPONSIVE WALL FORMING THEREWITH CHAMBERS OF OPPOSITE SIDES OF SAID WALL, VALVE MEANS HAVING A NORMAL POSITION BALANCING PRESSURES IN SAID CHAMBERS AND HAVING A CONNECTION WITH A SOURCE OF PRESSURE TO VARY THE PRESSURE IN ONE OF SAID CHAMBERS TO MOVE SAID WALL IN A PREDETERMINED RANGE UPON MOVEMENT OF SAID VALVE MEANS FROM SAID NORMAL POSITION, ACTUATING MEANS FOR MOVING SAID VALVE MEANS FOR SAID NORMAL POSITION IN RESPONSE TO MANUAL EFFORT AND BEING MOVABLE IN A PREDETERMINED RANGE DURING MOVEMENT OF SAID WALL IN ITS PREDETERMINED RANGE INDEPENDENTLY OF REACTION FORCES RESULTING FROM MOVEMENT OF SAID WALL, AND REACTION MEANS OPERATIVELY DISPOSED BETWEEN SAID ACTUATING MEANS AND SAID HOUSING AND ACTING INDEPENDENTLY OF SAID WALL TO RESILIENTLY RESIST MOVEMENT OF SAID ACTUATING MEANS IN ONE DIRECTION IN A SUBSTANTIALLY DIRECT RATIO TO THE FORCE DEVELOPED BY SAID WALL.
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |