US3148921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track chain and link
Assignee: Rockwell-Standard Corp
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Filing: 1962-06-11
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Granted: 1964-09-15
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Eugene H Batur
- 👤 Mitchell J Shepard
- 👤 Hubert C Musil
- 👤 August T Gonia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:21
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/20; B62D55/205; B62D55/096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN AN ENDLESS TRACK ASSEMBLY OF THE TYPE CHARACTERIZED BY AN ENDLESS CHAIN PASSING OVER DRIVE WHEEL ASSEMBLIES WITH SAID CHAIN HAVING SUBSTANTIALLY STRAIGHT SECTIONS BETWEEN THE WHEEL ASSEMBLIES AND FLEXING AROUND THE WHEEL ASSEMBLIES, AT LEAST ONE OF SAID WHEEL ASSEMBLIES COMPRISING A TOOTHED SPROCKET AND HAVING SIMILAR OPPOSITELY AXIALLY EXTENDING CHAIN GUIDE SUPPORTS DISPOSED RADIALLY INWARD OF THE SPROCKET TEETH, AND SAID CHAIN COMPRISING A SERIES OF SIMILAR SHOES STRADDLING SAID SPROCKET WITH INWARDLY EXTENDING LEGS FOR SLIDABLY ENGAGING SAID SUPPORTS, PIVOT MEANS INTERCONNECTING ADJACENT SHOES, ROLLERS ON SAID PIVOT MEANS OPERATIVELY ENGAGED WITH THE SPROCKET TEETH, AND RIGID LOCKING LINKS INTERMEDIATELY ROCKABLY MOUNTED ON SAID PIVOT MEANS HAVING OPPOSITELY EXTENDING ARMS EXTENDING INTO ENGAGEMENT WITH THE ADJACENT SHOES.
Claim 2
Dependent Claim
121 words
IN AN ENDLESS TRACK ASSEMBLY OF THE TYPE CHARACTERIZED BY AN ENDLESS CHAIN PASSING OVER DRIVE WHEEL ASSEMBLIES WITH SAID CHAIN HAVING SUBSTANTIALLY STRAIGHT SECTIONS BETWEEN THE WHEEL ASSEMBLIES AND FLEXING AROUND THE WHEEL ASSEMBLIES, AT LEAST ONE OF SAID WHEEL ASSEMBLIES COMPRISING A TOOTHED SPROCKET AND HAVING SIMILAR OPPOSITELY AXIALLY EXTENDING CHAIN GUIDE SUPPORTS DISPOSED RADIALLY INWARD OF THE SPROCKET TEETH, AND SAID CHAIN COMPRISING A SERIES OF SIMILAR SHOES STRADDLING SAID SPROCKET WITH INWARDLY EXTENDING LEGS FOR SLIDABLY ENGAGING SAID SUPPORTS, PIVOT MEANS INTERCONNECTING ADJACENT SHOES, ROLLERS ON SAID PIVOT MEANS OPERATIVELY ENGAGED WITH THE SPROCKET TEETH, AND RIGID LOCKING LINKS INTERMEDIATELY ROCKABLY MOUNTED ON SAID PIVOT MEANS HAVING OPPOSITELY EXTENDING ARMS EXTENDING INTO ENGAGEMENT WITH THE ADJACENT SHOES.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |