US3277974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for increasing the wheel traction and braking effort
Assignee: Westinghouse Air Brake Co
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Filing: 1965-10-18
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Granted: 1966-10-11
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Edward F Brill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:24
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/02; B62D53/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
MEANS FOR INCREASING THE BRAKING EFFORT OF A TRANSVERSELY PIVOTALLY INTERCONNECTED MULTI-SECTION VEHICLE, SAID MEANS INCLUDING TORSION SPRING MEANS ASSOCIATED WITH A PAIR OF ADJACENT, INTERCONNECTED VEHICLE SECTIONS, FIRST MEANS OPERABLY CONNECTING ONE END PORTION OF SAID TORSION SPRING MEANS TO ONE OF SAID PAIR OF VEHICLE SECTIONS, SECOND MEANS OPERABLE CONNECTING THE OTHER END PORTION OF SAID TORSION SPRING MEANS TO THE OTHER OF SAID VECHICLE SECTIONS, BRAKING WHEEL MEANS ASSOCIATED WITH THE INTERCONNECTED VEHICLE SECTIONS AT THEIR REGION OF INTERCONNECTION, AND MEANS INCLUDED IN ONE OF THE AFOREMENTIONED FIRST AND SECOND CONNECTING MEANS TO LOAD SAID TORSION SPRING MEANS TO THEREBY IMPART A GENERALLY DOWNWARDLY DIRECTED FORCE ON THE BRAKING WHEEL MEANS.
Claim 2
Dependent Claim
114 words
MEANS FOR INCREASING THE BRAKING EFFORT OF A TRANSVERSELY PIVOTALLY INTERCONNECTED MULTI-SECTION VEHICLE, SAID MEANS INCLUDING TORSION SPRING MEANS ASSOCIATED WITH A PAIR OF ADJACENT, INTERCONNECTED VEHICLE SECTIONS, FIRST MEANS OPERABLY CONNECTING ONE END PORTION OF SAID TORSION SPRING MEANS TO ONE OF SAID PAIR OF VEHICLE SECTIONS, SECOND MEANS OPERABLE CONNECTING THE OTHER END PORTION OF SAID TORSION SPRING MEANS TO THE OTHER OF SAID VECHICLE SECTIONS, BRAKING WHEEL MEANS ASSOCIATED WITH THE INTERCONNECTED VEHICLE SECTIONS AT THEIR REGION OF INTERCONNECTION, AND MEANS INCLUDED IN ONE OF THE AFOREMENTIONED FIRST AND SECOND CONNECTING MEANS TO LOAD SAID TORSION SPRING MEANS TO THEREBY IMPART A GENERALLY DOWNWARDLY DIRECTED FORCE ON THE BRAKING WHEEL 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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |