US3272566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined service and emergency brake system apparatus
Assignee: Individual
•
Filing: 1963-12-30
•
Granted: 1966-09-13
•
Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 James H Clack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:06
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/22; B60T13/24; B60T13/26; B60T13/261; B60T17/00; B60T17/08; B60T17/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A BRAKE SYSTEM ADAPTED TO BE CARRIED BY A MOTOR VEHICLE COMPRISING A CAM SHAFT EFFECTIVE TO ACTUATE A BRAKE SHOE IN A FIRST DIRECTION OF ANGULAR SHAFT ROTATION AND TO RELEASE A BRAKE SHOE IN A SECOND DIRECTION OF ANGULAR SHAFT ROTATION, BIASING MEANS CONNECTED TO SAID CAM SHAFT FOR RESILIENTLY URGING SAID CAM SHAFT IN SAID FIRST DIRECTION, FLUID PRESSURE MEANS CONNECTED TO SAID CAM SHAFT FOR OVERCOMING SAID BIASING MEANS WHEREBY SAID CAM SHAFT IS ROTATED IN SAID SECOND DIRECTION, PRESSURE SOURCE MEANS FOR SUPPLYING FLUID UNDER PRESSURE TO SAID FLUID PRESSURE MEANS, MEANS FORMING A FLUID SUPPLY LINE PATH CONNECTING THE SOURCE MEANS AND SAID FLUID PRESSURE MEANS, AND VALVE MEANS CONTROLLED BY THE OPERATOR OF THE MOTOR VEHICLE FOR BOTH SERVICE AND EMERGENCY OPERATION, SAID VALVE MEANS BEING CAPABLE OF SELECTIVELY SUPPLYING FLUID UNDER PRESSURE FROM SAID FLUID SUPPLY SOURCE MEANS TO SAID FLUID PRESSURE MEANS AND SUBSEQUENTLY SELECTIVELY REMOVING FLUID FROM SAID FLUID PRESSURE MEANS, SAID VALVE MEANS BEING NORMALLY
Claim 2
Dependent Claim
166 words
A BRAKE SYSTEM ADAPTED TO BE CARRIED BY A MOTOR VEHICLE COMPRISING A CAM SHAFT EFFECTIVE TO ACTUATE A BRAKE SHOE IN A FIRST DIRECTION OF ANGULAR SHAFT ROTATION AND TO RELEASE A BRAKE SHOE IN A SECOND DIRECTION OF ANGULAR SHAFT ROTATION, BIASING MEANS CONNECTED TO SAID CAM SHAFT FOR RESILIENTLY URGING SAID CAM SHAFT IN SAID FIRST DIRECTION, FLUID PRESSURE MEANS CONNECTED TO SAID CAM SHAFT FOR OVERCOMING SAID BIASING MEANS WHEREBY SAID CAM SHAFT IS ROTATED IN SAID SECOND DIRECTION, PRESSURE SOURCE MEANS FOR SUPPLYING FLUID UNDER PRESSURE TO SAID FLUID PRESSURE MEANS, MEANS FORMING A FLUID SUPPLY LINE PATH CONNECTING THE SOURCE MEANS AND SAID FLUID PRESSURE MEANS, AND VALVE MEANS CONTROLLED BY THE OPERATOR OF THE MOTOR VEHICLE FOR BOTH SERVICE AND EMERGENCY OPERATION, SAID VALVE MEANS BEING CAPABLE OF SELECTIVELY SUPPLYING FLUID UNDER PRESSURE FROM SAID FLUID SUPPLY SOURCE MEANS TO SAID FLUID PRESSURE MEANS AND SUBSEQUENTLY SELECTIVELY REMOVING FLUID FROM SAID FLUID PRESSURE MEANS, SAID VALVE MEANS BEING NORMALLY
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |