US3564849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic booster assembly for brake system
Assignee: Aisin Corp
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Filing: 1968-05-29
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Granted: 1971-02-23
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Expires: 1988-05-29
Abstract
Abstract THE INVENTION PROVIDES A PNEUMATIC SERVO- OR BOOSTER ASSEMBLY ADAPTED FOR COOPERATION WITH A HYDRAULIC AUTOMOTIVE WHEEL BRAKE SYSTEM COMPRISING A FIRST HYDRAULIC PISTON AND A SECOND HYDRAULIC PISTON ARRANGED TO COOPERATE WITH A COMMON HYDRAULIC CYLINDER WHICH IS HYDRAULICALLY CONNECTED WITH WHEEL BRAKE CYLINDERS, WHEREIN LOCKING MEANS ARE PROVIDED WITHIN THE MASTER CYLINDER FOR THE PREVENTION OF LOST MOTION OF THE BRAKE PEDAL, SAID LOCK MEANS BEING EFFECTIVE ONLY WHEN THE FOOT EFFORT EXCEEDS A PREDETERMINED SERVO RANGE OF SAID ASSEMBLY.
Inventors
- 👤 Yooichi Huruta
- 👤 Yoshiharu Adachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:47
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/24; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |