Patent US3344893A successfully refreshed from Google Patents.
US3344893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car disc brake mechanism
Assignee: Buffalo Brake Beam Co
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Filing: 1965-09-10
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Granted: 1967-10-03
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 George A Pelikan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:03
CPC Classifications
B; B61; B61H; B61H5/00; F; F16; F16D; F16D65/00; F16D65/02; F16D2065/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A RAILWAY CAR TRUCK, THE COMBINATION COMPRISING A PAIR OF COAXIAL CAR WHEELS, AN AXLE RIGIDLY CONNECTING SAID WHEELS TOGETHER FOR ROTATION IN UNISON, A DOUBLE BRAKE DISC MEMBER ON SAID AXLE RIGID THEREWITH AND PRESENTING CONFRONTING BRAKE FACES FACING A PLANE THEREBETWEEN AT RIGHT ANGLES TO THE AXIS OF SAID AXLE, A BRAKE SHOE BETWEEN SAID FACES, MEANS SUPPORTING SAID BRAKE SHOE FOR MOVEMENTS SUBSTANTIALLY ALONG SAID PLANE TOWARDS SAID AXIS INTO BRAKING POSITION IN CONTACT WITH SAID FACES AND AWAY FROM SAID AXIS OUT OF BRAKING POSITION, AND COMPRISING A COUPLING MEMBER, MEANS PIVOTALLY SUPPORTING SAID COUPLING MEMBER FOR MOVEMENT ABOUT A FIRST PIVOT AXIS SUBSTANTIALLY PARALLEL TO SAID AXLE AXIS, AND MEANS PIVOTALLY CONNECTING SAID BRAKE SHOE TO SAID COUPLING MEMBER FOR MOVEMENT RELATIVE TO SAID COUPLING MEMBER ABOUT A SECOND PIVOT AXIS SUBSTANTIALLY AT RIGHT ANGLES TO SAID FIRST PIVOT AXIS, AND BRAKE APPLYING MEANS FOR APPLYING POWER TO SAID BRAKE SHOE FOR MOVEMENT INTO SAID BRAKING POSITION AND COMPRISING MEANS FOR APPLYING POWER TO SAID COUPLING MEMBER CAUSING SAID COUPLING MEMBER TO SWING ABOUT SAID FIRST PIVOT AXIS.
Claim 2
Dependent Claim
184 words
IN A RAILWAY CAR TRUCK, THE COMBINATION COMPRISING A PAIR OF COAXIAL CAR WHEELS, AN AXLE RIGIDLY CONNECTING SAID WHEELS TOGETHER FOR ROTATION IN UNISON, A DOUBLE BRAKE DISC MEMBER ON SAID AXLE RIGID THEREWITH AND PRESENTING CONFRONTING BRAKE FACES FACING A PLANE THEREBETWEEN AT RIGHT ANGLES TO THE AXIS OF SAID AXLE, A BRAKE SHOE BETWEEN SAID FACES, MEANS SUPPORTING SAID BRAKE SHOE FOR MOVEMENTS SUBSTANTIALLY ALONG SAID PLANE TOWARDS SAID AXIS INTO BRAKING POSITION IN CONTACT WITH SAID FACES AND AWAY FROM SAID AXIS OUT OF BRAKING POSITION, AND COMPRISING A COUPLING MEMBER, MEANS PIVOTALLY SUPPORTING SAID COUPLING MEMBER FOR MOVEMENT ABOUT A FIRST PIVOT AXIS SUBSTANTIALLY PARALLEL TO SAID AXLE AXIS, AND MEANS PIVOTALLY CONNECTING SAID BRAKE SHOE TO SAID COUPLING MEMBER FOR MOVEMENT RELATIVE TO SAID COUPLING MEMBER ABOUT A SECOND PIVOT AXIS SUBSTANTIALLY AT RIGHT ANGLES TO SAID FIRST PIVOT AXIS, AND BRAKE APPLYING MEANS FOR APPLYING POWER TO SAID BRAKE SHOE FOR MOVEMENT INTO SAID BRAKING POSITION AND COMPRISING MEANS FOR APPLYING POWER TO SAID COUPLING MEMBER CAUSING SAID COUPLING MEMBER TO SWING ABOUT SAID FIRST PIVOT AXIS.
References Cited (Backward Citations)
US2079554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |