US3261645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the automatic modulated emergency braking of towed vehicles provided with pneumatic braking system
Assignee: Industrie Magneti Marelli SRL
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Filing: 1964-02-17
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Granted: 1966-07-19
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Alfieri Giuseppe
- 👤 Moriondo Roberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/268; B60T13/58; B60T13/62; B60T15/00; B60T15/02; B60T15/18; B60T15/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A DEVICE FOR TRACTOR-TRAILER BRAKING SYSTEMS HAVING A TRAILER PNEUMATIC BRAKING SYSTEM INCLUDING AN AUTOMATIC BRAKING LINE, AND SERVICE BRAKING LINES FOR SAID TRACTOR AND TRAILER RESPECTIVELY, SAID DEVICE COMPRISING FIRST MEANS AND SECOND MEANS RESPONSIVE TO THE PRESSURE IN SAID TRACTOR AND TRAILER SERVICE BRAKING LINES RESPECTIVELY, MEANS FOR RENDERING SAID FIRST AND SECOND PRESSURE RESPONSIVE MEANS COOPERATIVW WITH EACH OTHERE IN ORDER THAT THE ACTIONS OF THE RESPECTIVE PRESSURES MAY BE MUTUALLY OPPOSITE, AND VALVE MEANS NORMALLY CONNECTING SAID AUTOMATIC BRAKING LINE TO A SOURCE OF AIR PRESSURE AND BEING ACTUATED BY A LOSS OF PRESSURE ON SAID SECOND PRESSURE RESPONSIVE MEANS TO VENT SAID AUTOMATIC BRAKING LINE.
Claim 2
Independent Claim
110 words
A DEVICE FOR TRACTOR-TRAILER BRAKING SYSTEMS HAVING A TRAILER PNEUMATIC BRAKING SYSTEM INCLUDING AN AUTOMATIC BRAKING LINE, AND SERVICE BRAKING LINES FOR SAID TRACTOR AND TRAILER RESPECTIVELY, SAID DEVICE COMPRISING FIRST MEANS AND SECOND MEANS RESPONSIVE TO THE PRESSURE IN SAID TRACTOR AND TRAILER SERVICE BRAKING LINES RESPECTIVELY, MEANS FOR RENDERING SAID FIRST AND SECOND PRESSURE RESPONSIVE MEANS COOPERATIVW WITH EACH OTHERE IN ORDER THAT THE ACTIONS OF THE RESPECTIVE PRESSURES MAY BE MUTUALLY OPPOSITE, AND VALVE MEANS NORMALLY CONNECTING SAID AUTOMATIC BRAKING LINE TO A SOURCE OF AIR PRESSURE AND BEING ACTUATED BY A LOSS OF PRESSURE ON SAID SECOND PRESSURE RESPONSIVE MEANS TO VENT SAID AUTOMATIC BRAKING LINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |