US3135358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-trailer braking systems and operating mechanism
Assignee: Individual
•
Filing: 1963-01-17
•
Granted: 1964-06-02
•
Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Greentree Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:22
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/2022; Y10T74/20528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CONTROL SYSTEM FOR TRAILER WHEEL BRAKES OF A TRACTOR-TRAILER ASSEMBLY WHEREIN THE TRACTOR AND TRAILER HAVE INDEPENDENT BRAKING SYSTEMS COMPRISING A BRAKE PEDAL AND A FIRST SOURCE OF BRAKE POWER ON SAID TRACTOR FOR APPLYING SAID TRACTOR BRAKES. A SECOND SOURCE OF BRAKE POWER INDEPENDENT FROM SAID FIRST SOURCE OF BRAKE POWER FOR APPLYING SAID TRAILER BRAKES, CONTROLLER MEANS INTERMEDIATELY CONNECTED BETWEEN THE SECOND SOURCE OF BRAKE POWER AND THE TRAILER BRAKES FOR PRE-ACTUATING SAID TRAILER BRAKES AND NORMALLY REGULATING THE POWER APPLIED TO THE TRAILER BRAKES TO ASSURE PREDETERMINED CONTROLLED ACTUATION OF SAID TRAILER AND TRACTOR BRAKES, MEANS RESPONSIVE TO FOOT PRESSURE APPLIED TO ACTUATE THE BRAKE PEDAL FOR ACTUATING SAID CONTROLLER COMPRISING YIELDABLE MEANS MOUNTED ON SAID BRAKE PEDAL FOR MOTION RELATIVE THERETO, AND
Claim 2
Dependent Claim
127 words
A CONTROL SYSTEM FOR TRAILER WHEEL BRAKES OF A TRACTOR-TRAILER ASSEMBLY WHEREIN THE TRACTOR AND TRAILER HAVE INDEPENDENT BRAKING SYSTEMS COMPRISING A BRAKE PEDAL AND A FIRST SOURCE OF BRAKE POWER ON SAID TRACTOR FOR APPLYING SAID TRACTOR BRAKES. A SECOND SOURCE OF BRAKE POWER INDEPENDENT FROM SAID FIRST SOURCE OF BRAKE POWER FOR APPLYING SAID TRAILER BRAKES, CONTROLLER MEANS INTERMEDIATELY CONNECTED BETWEEN THE SECOND SOURCE OF BRAKE POWER AND THE TRAILER BRAKES FOR PRE-ACTUATING SAID TRAILER BRAKES AND NORMALLY REGULATING THE POWER APPLIED TO THE TRAILER BRAKES TO ASSURE PREDETERMINED CONTROLLED ACTUATION OF SAID TRAILER AND TRACTOR BRAKES, MEANS RESPONSIVE TO FOOT PRESSURE APPLIED TO ACTUATE THE BRAKE PEDAL FOR ACTUATING SAID CONTROLLER COMPRISING YIELDABLE MEANS MOUNTED ON SAID BRAKE PEDAL FOR MOTION RELATIVE THERETO, AND
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |