US3167154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface engaging braking system
Assignee: Individual
•
Filing: 1962-02-02
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Granted: 1965-01-26
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Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Salvetti Adriano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:41
CPC Classifications
B; B60; B60T; B60T1/00; B60T1/12; B60T1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A VACUUM BRAKING SYSTEM FOR A VEHICLE WHICH COMPRISES A SUCTION PRODUCING APPARATUS MOUNTED ON THE VEHICLE, A PLURALITY OF HOLLOW FLEXIBLE WALL MEMBERS SECURED TO THE UNDERSIDE OF THE VEHICLE FOR SELECTIVE PIVOTAL MOVEMENT INTO AND OUT OF CHAMBER FORMING COMMUNICATION WITH THE SURFACE BENEATH THE VEHICLE, A LEAF SPRING CONTAINED WITHIN EACH OF SAID HOLLOW WALL MEMBERS AND EXTENDING GENERALLY PARALLEL TO THE SURFACE-ENGAGING EDGE THEREOF, DUCTING MEANS CONNECTING SAID SUCTION PRODUCING APPARATUS IN COMMUNICATION WITH THE CHAMBER WHEN FORMED BY SAID WALL MEMBERS WHEREBY A VACUUM IS CREATED IN THE CHAMBER UPON THE ACTUATION OF SAID SUCTION PRODUCING APPARATUS, AND MEANS CONNECTED TO SAID SUCTION PRODUCING APPARATUS AND SAID FLEXIBLE WALL MEMBERS TO EFFECT THE PIVOTING OF SAID WALL MEMBERS INTO CHAMBER FORMING COMMUNICATION WITH THE SURFACE BENEATH THE VEHICLE AND THE SIMULTANEOUS ACTUATION OF SAID SUCTION PRODUCING APPARATUS.
Claim 2
Dependent Claim
142 words
A VACUUM BRAKING SYSTEM FOR A VEHICLE WHICH COMPRISES A SUCTION PRODUCING APPARATUS MOUNTED ON THE VEHICLE, A PLURALITY OF HOLLOW FLEXIBLE WALL MEMBERS SECURED TO THE UNDERSIDE OF THE VEHICLE FOR SELECTIVE PIVOTAL MOVEMENT INTO AND OUT OF CHAMBER FORMING COMMUNICATION WITH THE SURFACE BENEATH THE VEHICLE, A LEAF SPRING CONTAINED WITHIN EACH OF SAID HOLLOW WALL MEMBERS AND EXTENDING GENERALLY PARALLEL TO THE SURFACE-ENGAGING EDGE THEREOF, DUCTING MEANS CONNECTING SAID SUCTION PRODUCING APPARATUS IN COMMUNICATION WITH THE CHAMBER WHEN FORMED BY SAID WALL MEMBERS WHEREBY A VACUUM IS CREATED IN THE CHAMBER UPON THE ACTUATION OF SAID SUCTION PRODUCING APPARATUS, AND MEANS CONNECTED TO SAID SUCTION PRODUCING APPARATUS AND SAID FLEXIBLE WALL MEMBERS TO EFFECT THE PIVOTING OF SAID WALL MEMBERS INTO CHAMBER FORMING COMMUNICATION WITH THE SURFACE BENEATH THE VEHICLE AND THE SIMULTANEOUS ACTUATION OF SAID SUCTION PRODUCING APPARATUS.
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |