Patent US3386778A successfully refreshed from Google Patents.
US3386778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walking beam suspension
Assignee: Robin Nodwell Manufacturing Ltd
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Filing: 1965-07-01
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Granted: 1968-06-04
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 John E Rymes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:55
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A SUSPENSION FOR A TRACKED VEHICLE HAVING A CHASSIS WITH A TRACK MOUNTED THEREBENEATH, WHICH SYSTEM INCLUDES A PLURALITY OF TRANSVERSELY EXTENDING ROD MEANS RIGIDLY CONNECTED TO SAID CHASSIS AND SPACED LONGITUDINALLY THEREOF; A SET OF WHEELS MOUNTED ON EACH ROD MEANS, EACH SET COMPRISING A PLURALITY OF SLEEVES COAXIALLY AND ROTATABLY MOUNTED SIDE BY SIDE ON SAID ROD MEANS; A CRANK ARM MOUNTED ON EACH SLEEVE EXTENDING DOWNWARDLY AND OUTWARDLY THEREFROM; A LOAD CARRYING WHEEL MOUNTED ON THE FREE END OF EACH CRANK ARM; AN INDIVIDUAL COIL SPRING FOR EACH WHEEL SURROUNDING THE WHEEL CARRYING SLEEVE WITH ONE SPRING END BEING ANCHORED TO THE ROD MEANS WHICH CARRIES THAT SLEEVE AND THE OTHER SPRING END BIASING ITS WHEEL DOWNWARDLY INTO CONTACT WITH THE INSIDE SURFACE OF THE LOWER RUN OF THE TRACK, THE WHEELS OF EACH SET EXTENDING ALTERNATELY FORE AND AFT FROM ADJACENT SLEEVES.
Claim 2
Dependent Claim
146 words
A SUSPENSION FOR A TRACKED VEHICLE HAVING A CHASSIS WITH A TRACK MOUNTED THEREBENEATH, WHICH SYSTEM INCLUDES A PLURALITY OF TRANSVERSELY EXTENDING ROD MEANS RIGIDLY CONNECTED TO SAID CHASSIS AND SPACED LONGITUDINALLY THEREOF; A SET OF WHEELS MOUNTED ON EACH ROD MEANS, EACH SET COMPRISING A PLURALITY OF SLEEVES COAXIALLY AND ROTATABLY MOUNTED SIDE BY SIDE ON SAID ROD MEANS; A CRANK ARM MOUNTED ON EACH SLEEVE EXTENDING DOWNWARDLY AND OUTWARDLY THEREFROM; A LOAD CARRYING WHEEL MOUNTED ON THE FREE END OF EACH CRANK ARM; AN INDIVIDUAL COIL SPRING FOR EACH WHEEL SURROUNDING THE WHEEL CARRYING SLEEVE WITH ONE SPRING END BEING ANCHORED TO THE ROD MEANS WHICH CARRIES THAT SLEEVE AND THE OTHER SPRING END BIASING ITS WHEEL DOWNWARDLY INTO CONTACT WITH THE INSIDE SURFACE OF THE LOWER RUN OF THE TRACK, THE WHEELS OF EACH SET EXTENDING ALTERNATELY FORE AND AFT FROM ADJACENT SLEEVES.
References Cited (Backward Citations)
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Cited
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US2609212A
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US3309150A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |