US3199631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake alarm
Assignee: Individual
•
Filing: 1963-06-21
•
Granted: 1965-08-10
•
Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 William J Blankemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:49
CPC Classifications
F; F16; F16D; F16D66/00; F16D66/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A BRAKE ASSEMBLY, AN ANNULAR BRAKE DRUM HAVING A BRAKING SURFACE, ANNULARLY ARRANGE SERRATIONS ADJACENT SAID BRAKING SURFACE, A BRAKE SHOE OPERATIVELY MOUNTED TO ENGAGE SAID BRAKING SURFACE AND HAVING A BRAKE LINING, AND A FLEXIBLE LEAF SPRING MOUNTED ON SAID SHOE AND EXTENDING LATERALLY THEREFROM IN A POSITION TO CAUSE THE EDGE THEREOF TO ENGAGE SAID SERRATIONS WHEN THE BRAKE LINING IS WORN DOWN A PREDETERMINED AMOUNT, WHEREBY TO PROVIDE AN AUDIBLE WARNING SIGNAL.
Claim 2
Dependent Claim
76 words
IN A BRAKE ASSEMBLY, AN ANNULAR BRAKE DRUM HAVING A BRAKING SURFACE, ANNULARLY ARRANGE SERRATIONS ADJACENT SAID BRAKING SURFACE, A BRAKE SHOE OPERATIVELY MOUNTED TO ENGAGE SAID BRAKING SURFACE AND HAVING A BRAKE LINING, AND A FLEXIBLE LEAF SPRING MOUNTED ON SAID SHOE AND EXTENDING LATERALLY THEREFROM IN A POSITION TO CAUSE THE EDGE THEREOF TO ENGAGE SAID SERRATIONS WHEN THE BRAKE LINING IS WORN DOWN A PREDETERMINED AMOUNT, WHEREBY TO PROVIDE AN AUDIBLE WARNING SIGNAL.
References Cited (Backward Citations)
US2087386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |