US3205785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety brake actuating device
Assignee: Individual
•
Filing: 1963-01-24
•
Granted: 1965-09-14
•
Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Arnold H Hoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:34
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/083; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN AUXILIARY AIR BRAKE SYSTEM ADAPTED TO BE CONNECTED TO THE BRAKES OF AN AIR BRAKE SYSTEM OF A VEHICLE HAVING AIR BRAKE ACTUATING MEANS COMPRISING A MAIN AIR RESERVOIR, A CHAMBER SENSITIVE TO AIR PRESSURE IN SAID MAIN AIR RESERVOIR, A SAFETY CHAMBER, CONNECTING MEANS CONNECTING AIR FROM SAID MAIN AIR RESEVIOR TO SAID SAFETY CHAMBER, MECHANICAL CONNECTING MEANS CONNECTED TO SAID ACTUATING MEANS AND TO SAID SAFETY CHAMBER AND RESPONSIVE TO AIR PRESSURE IN SAID SAFETY CHAMBER AND TO AIR PRESSURE IN SAID MAIN RESERVOIR TO ACTUATE SAID AIR BRAKES WHEN SAID AIR PRESSURE IN SAID MAIN RESEVOIR FALLS BELOW A PREDETERMINED VALUE, SAID CONNECTING MEANS COMPRISING A SPRING LOAED CHECK VALVE, A PRESSURE REGULATING VALVE, AND SAID SAFETY CHAMBER, SAID SAFETY CHAMBER BEING ADAPTED TO BE CHARGED TO A PREDETERMINED VALUE BY AIR FROM SAID MAIN RESERVOIR FEEDING IT THROUGH SAID SPRING LOADED CHECK VALVE, AND A PRESSURE REGULATING FEED VALVE,
Claim 2
Dependent Claim
154 words
AN AUXILIARY AIR BRAKE SYSTEM ADAPTED TO BE CONNECTED TO THE BRAKES OF AN AIR BRAKE SYSTEM OF A VEHICLE HAVING AIR BRAKE ACTUATING MEANS COMPRISING A MAIN AIR RESERVOIR, A CHAMBER SENSITIVE TO AIR PRESSURE IN SAID MAIN AIR RESERVOIR, A SAFETY CHAMBER, CONNECTING MEANS CONNECTING AIR FROM SAID MAIN AIR RESEVIOR TO SAID SAFETY CHAMBER, MECHANICAL CONNECTING MEANS CONNECTED TO SAID ACTUATING MEANS AND TO SAID SAFETY CHAMBER AND RESPONSIVE TO AIR PRESSURE IN SAID SAFETY CHAMBER AND TO AIR PRESSURE IN SAID MAIN RESERVOIR TO ACTUATE SAID AIR BRAKES WHEN SAID AIR PRESSURE IN SAID MAIN RESEVOIR FALLS BELOW A PREDETERMINED VALUE, SAID CONNECTING MEANS COMPRISING A SPRING LOAED CHECK VALVE, A PRESSURE REGULATING VALVE, AND SAID SAFETY CHAMBER, SAID SAFETY CHAMBER BEING ADAPTED TO BE CHARGED TO A PREDETERMINED VALUE BY AIR FROM SAID MAIN RESERVOIR FEEDING IT THROUGH SAID SPRING LOADED CHECK VALVE, AND A PRESSURE REGULATING FEED VALVE,
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |