Patent US3227494A successfully refreshed from Google Patents.
US3227494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air distributors with one or more sections
Assignee: Industrie Magneti Marelli SRL
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Filing: 1961-06-12
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Granted: 1966-01-04
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Alfieri Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:01
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/04; B60T15/043; B60T15/045; B60T11/00; B60T11/10; B60T11/24; B60T13/00; B60T13/10; B60T13/58; B60T13/581
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A VEHICLE BRAKING SYSTEM HAVING A PLURALITY OF BRAKING SECTIONS, THE COMBINATION COMPRISING COMPRESSED AIR DISTRIBUTOR MEANS HAVING A PLURALITY OF SECTIONS CORRESPONDING TO A SIMILAR PLURALITY OF BRAKING SECTIONS, DISTRIBUTOR OPERATING MEMBERS FOR SAID PLURALITY OF SECTIONS INCLUDING A ROCKING LEVER, A MOVABLE PISTON AND CYLINDER UNIT CONNECTED TO SAID ROCKING LEVER FOR OPERATING SAID DISTRIBUTOR OPERATING MEMBERS, SPRING MEANS BIASING SAID PISTON AND CYLINDER UNIT FOR FORCING SAID ROCKING LEVER IN ONE DIRECTION, PRESSURE CHAMBER MEANS OPERATIVELY ASSOCIATED WITH SAID PISTON AND CYLINDER UNIT, MEANS COMMUNICATING WITH SAID CHAMBER MEANS TO ESTABLISH AN OPERATING PRESSURE THEREIN WHEREBY SAID PISTON AND CYLINDER UNIT FORCES SAID ROCKING LEVER TO BE MOVED IN ANOTHER DIRECTION AGAINST THE BIASING OF SAID SPRING MEANS, SAID CHAMBER MEANS BEING DEFINED BY A FIXED SLEEVE, AND SAID PISTON AND CYLINDER UNIT COMPRISING A PISTON SLIDABLY DISPOSED INSIDE SAID SLEEVE AND A CYLINDER FIXED TO SAID PISTON AND BEING SLIDABLY DISPOSED OUTSIDE SAID SLEEVE.
Claim 2
Dependent Claim
159 words
IN A VEHICLE BRAKING SYSTEM HAVING A PLURALITY OF BRAKING SECTIONS, THE COMBINATION COMPRISING COMPRESSED AIR DISTRIBUTOR MEANS HAVING A PLURALITY OF SECTIONS CORRESPONDING TO A SIMILAR PLURALITY OF BRAKING SECTIONS, DISTRIBUTOR OPERATING MEMBERS FOR SAID PLURALITY OF SECTIONS INCLUDING A ROCKING LEVER, A MOVABLE PISTON AND CYLINDER UNIT CONNECTED TO SAID ROCKING LEVER FOR OPERATING SAID DISTRIBUTOR OPERATING MEMBERS, SPRING MEANS BIASING SAID PISTON AND CYLINDER UNIT FOR FORCING SAID ROCKING LEVER IN ONE DIRECTION, PRESSURE CHAMBER MEANS OPERATIVELY ASSOCIATED WITH SAID PISTON AND CYLINDER UNIT, MEANS COMMUNICATING WITH SAID CHAMBER MEANS TO ESTABLISH AN OPERATING PRESSURE THEREIN WHEREBY SAID PISTON AND CYLINDER UNIT FORCES SAID ROCKING LEVER TO BE MOVED IN ANOTHER DIRECTION AGAINST THE BIASING OF SAID SPRING MEANS, SAID CHAMBER MEANS BEING DEFINED BY A FIXED SLEEVE, AND SAID PISTON AND CYLINDER UNIT COMPRISING A PISTON SLIDABLY DISPOSED INSIDE SAID SLEEVE AND A CYLINDER FIXED TO SAID PISTON AND BEING SLIDABLY DISPOSED OUTSIDE SAID SLEEVE.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |