US3167158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic brake system
Assignee: Rockwell-Standard Corp
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Filing: 1961-08-23
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Granted: 1965-01-26
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Expires: 1981-08-23
Abstract
No abstract record available.
Inventors
- 👤 Nelson R Brownyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T11/00; B60T11/10; B60T11/16; F; F16; F16D; F16D49/00; F16D49/16; F16D65/00; F16D65/02; F16D2065/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A BRAKING SYSTEM FOR A VEHICLE HAVING A DRIVE LINE MOUNTED BRAKE ASSEMBLY AND A SET OF HYDRAULIC WHEEL BRAKES, AN OPERATOR CONTROLLED MASTER CYLINDER CONNECTED TO ACTUATE SAID WHEEL BRAKES AND SAID DRIVE LINE MOUNTED BRAKE ASSEMBLY, SAID DRIVE LINE MOUNTED BRAKE ASSEMBLY COMPRISING A MEMBER MOUNTED FOR LIMITED ROTATION, A BRAKE SHOE MOVABLY MOUNTED ON SAID MEMBER AND ADAPTED FOR ENGAGEMENT WITH A BRAKE DRUM ON SAID DRIVE LINE, SAID MASTER CYLINDER WHEN OPERATED ADVANCING SAID SHOE INTO FRICTIONAL CONTACT WITH THE DRUM, SAID MEMBER BEING ROTATED BY THE TORQUE REACTION FORCE DEVELOPED WHEN SAID SHOE ENGAGES THE DRUM, A HYDAULIC CYLINDER CONTAINING A PISTON, MEANS CONNECTING SAID HYDRAULIC CYLINDER TO ACTUATE SAID WHEEL BRAKES INDEPENDENTLY OF SAID MASTER CYLINDER, AND A MOTION TRANSMITTING CONNECTION BETWEEN SAID ROTATING MEMBER AND SAID PISTON FOR DISPLACING SAID PISTON IN A CONSTANT DIRECTION REGARDLESS OF THE DIRECTION OF ROTATION OF SAID MEMBER.
Claim 2
Dependent Claim
152 words
IN A BRAKING SYSTEM FOR A VEHICLE HAVING A DRIVE LINE MOUNTED BRAKE ASSEMBLY AND A SET OF HYDRAULIC WHEEL BRAKES, AN OPERATOR CONTROLLED MASTER CYLINDER CONNECTED TO ACTUATE SAID WHEEL BRAKES AND SAID DRIVE LINE MOUNTED BRAKE ASSEMBLY, SAID DRIVE LINE MOUNTED BRAKE ASSEMBLY COMPRISING A MEMBER MOUNTED FOR LIMITED ROTATION, A BRAKE SHOE MOVABLY MOUNTED ON SAID MEMBER AND ADAPTED FOR ENGAGEMENT WITH A BRAKE DRUM ON SAID DRIVE LINE, SAID MASTER CYLINDER WHEN OPERATED ADVANCING SAID SHOE INTO FRICTIONAL CONTACT WITH THE DRUM, SAID MEMBER BEING ROTATED BY THE TORQUE REACTION FORCE DEVELOPED WHEN SAID SHOE ENGAGES THE DRUM, A HYDAULIC CYLINDER CONTAINING A PISTON, MEANS CONNECTING SAID HYDRAULIC CYLINDER TO ACTUATE SAID WHEEL BRAKES INDEPENDENTLY OF SAID MASTER CYLINDER, AND A MOTION TRANSMITTING CONNECTION BETWEEN SAID ROTATING MEMBER AND SAID PISTON FOR DISPLACING SAID PISTON IN A CONSTANT DIRECTION REGARDLESS OF THE DIRECTION OF ROTATION OF SAID MEMBER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |