US3210132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo autodistributor for trailer vehicles equipped with pneumatic brake system
Assignee: Industrie Magneti Marelli SRL
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Filing: 1963-10-30
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Granted: 1965-10-05
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alfieri Giuseppe
- 👤 Moriondo Roberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:46
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/36; B60T15/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A SERVO AUTODISTRIBUTOR FOR TRAILER VEHICLES PROVIDED WITH PNEUMATIC ACTUATED BRAKES AND A PRESSURIZED FLUID RESERVOIR, SAID AUTODISTRIBUTOR COMPRISING A COLLECTING CHAMBER, MEANS INCLUDING A CHECK VALVE FOR CONNECTING THE COLLECTING CHAMBER TO A SOURCE OF PRESSURIZED FLUID, FIRST VALVE MEANS SELECTIVELY CONNECTING THE TRAILER BRAKE ACTUATING MEANS TO THE COLLECTING CHAMBER AND THE ATMOSPHERE, FIRST DIFFERNTIAL PRESSURE MEANS CONNECTED TO SAID VALVE MEANS FOR MOVING THE VALVE MEANS ACCORDING TO THE DIFFERENCE BETWEEN THE PRESSURE IN THE BRAKE ACTUATING MEANS AND A CONTROL PRESSURE, A THROTTLING CHAMBER CONNECTING SAID COLLECTING CHAMBER TO SAID PRESSURE FLUID RESERVOIR, THROTTLING MEANS FOR RESTRICTING SAID CONDUIT, AND SECOND DIFFERENTIAL PRESSURE MEANS RESPONSIVE TO THE PRESSURE DIFFERENCE ACROSS SAID CHECK VALVE FOR MOVING SAID THROTTLING MEANS TO RESTRICTING POSITION WHEN THE PRESSURE IN SAID COLLECTING CHAMBER EXCEEDS THE PRESSURE OF SAID SOURCE OF PRESSURIZED FLUID TO LIMIT THE RATE OF FLOW OF FLUID FROM THE RESERVIOR TO THE BRAKE ACTUATING MEANS.
Claim 2
Dependent Claim
157 words
A SERVO AUTODISTRIBUTOR FOR TRAILER VEHICLES PROVIDED WITH PNEUMATIC ACTUATED BRAKES AND A PRESSURIZED FLUID RESERVOIR, SAID AUTODISTRIBUTOR COMPRISING A COLLECTING CHAMBER, MEANS INCLUDING A CHECK VALVE FOR CONNECTING THE COLLECTING CHAMBER TO A SOURCE OF PRESSURIZED FLUID, FIRST VALVE MEANS SELECTIVELY CONNECTING THE TRAILER BRAKE ACTUATING MEANS TO THE COLLECTING CHAMBER AND THE ATMOSPHERE, FIRST DIFFERNTIAL PRESSURE MEANS CONNECTED TO SAID VALVE MEANS FOR MOVING THE VALVE MEANS ACCORDING TO THE DIFFERENCE BETWEEN THE PRESSURE IN THE BRAKE ACTUATING MEANS AND A CONTROL PRESSURE, A THROTTLING CHAMBER CONNECTING SAID COLLECTING CHAMBER TO SAID PRESSURE FLUID RESERVOIR, THROTTLING MEANS FOR RESTRICTING SAID CONDUIT, AND SECOND DIFFERENTIAL PRESSURE MEANS RESPONSIVE TO THE PRESSURE DIFFERENCE ACROSS SAID CHECK VALVE FOR MOVING SAID THROTTLING MEANS TO RESTRICTING POSITION WHEN THE PRESSURE IN SAID COLLECTING CHAMBER EXCEEDS THE PRESSURE OF SAID SOURCE OF PRESSURIZED FLUID TO LIMIT THE RATE OF FLOW OF FLUID FROM THE RESERVIOR TO THE BRAKE ACTUATING MEANS.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |