Patent US3299210A successfully refreshed from Google Patents.
US3178239A
Expired / Lapsed
US
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Assignee: Zeller Corp
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Filing: 1963-09-16
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Granted: 1965-04-13
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Robert C Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:09
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/088; B62D55/0887; B62D55/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A CHAIN FOR THE TREAD OF A CRAWLER TRACTOR OR THE LIKE WHICH IS SUBJECTED TO SUDDEN LOADS AND TO LATERAL LOADS, SAID CHAIN INCLUDING A PLURALITY OF LINK PINS, A BUSHING AROUND EACH OF SAID PINS, SAID BUSHINGS BEING SHORTER THAN SAID PINS WITH THE PINS EXTENDING BEYOND THE ENDS OF THE BUSHINGS, A PLURALITY OF PAIRS OF LINKS, CORRESPONDING ENDS OF EACH PAIR OF BEING ATTACHED TO SPACED PORTIONS OF ONE OF SAID BUSHINGS AND FUNCTIONALLY INTEGRAL THEREWITH, THE OPPOSITE ENDS OF EACH PAIR OF SAID LINKS BEING ATTACHED TO SPACED PORTIONS OF ONE OF SAID PINS BEYOND ITS ASSOCIATED BUSHING AND BEING FUNCTIONALLY INTEGRAL WITH SAID ONE PIN, SEALS BETWEEN THE ENDS OF EACH OF SAID BUSHINGS AND THE LATTER ENDS OF EACH PAIR OF SAID LINKS TO PREVENT ABRASIVE MATERIAL FROM ENTERING BETWEEN THE PINS AND THE BUSHINGS, AND A SLEEVE MEMBER BETWEEN EACH OF SAID PINS AND THE ASSOCIATED BUSHING AND ROTATABLE WITH RESPECT TO EACH, SAID SLEEVE MEMBER EXTENDING SUBSTANTIALLY THE LENGTH OF THE BUSHING.
Claim 2
Dependent Claim
171 words
A CHAIN FOR THE TREAD OF A CRAWLER TRACTOR OR THE LIKE WHICH IS SUBJECTED TO SUDDEN LOADS AND TO LATERAL LOADS, SAID CHAIN INCLUDING A PLURALITY OF LINK PINS, A BUSHING AROUND EACH OF SAID PINS, SAID BUSHINGS BEING SHORTER THAN SAID PINS WITH THE PINS EXTENDING BEYOND THE ENDS OF THE BUSHINGS, A PLURALITY OF PAIRS OF LINKS, CORRESPONDING ENDS OF EACH PAIR OF BEING ATTACHED TO SPACED PORTIONS OF ONE OF SAID BUSHINGS AND FUNCTIONALLY INTEGRAL THEREWITH, THE OPPOSITE ENDS OF EACH PAIR OF SAID LINKS BEING ATTACHED TO SPACED PORTIONS OF ONE OF SAID PINS BEYOND ITS ASSOCIATED BUSHING AND BEING FUNCTIONALLY INTEGRAL WITH SAID ONE PIN, SEALS BETWEEN THE ENDS OF EACH OF SAID BUSHINGS AND THE LATTER ENDS OF EACH PAIR OF SAID LINKS TO PREVENT ABRASIVE MATERIAL FROM ENTERING BETWEEN THE PINS AND THE BUSHINGS, AND A SLEEVE MEMBER BETWEEN EACH OF SAID PINS AND THE ASSOCIATED BUSHING AND ROTATABLE WITH RESPECT TO EACH, SAID SLEEVE MEMBER EXTENDING SUBSTANTIALLY THE LENGTH OF THE BUSHING.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |