US3118317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller chain with reserve plates
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
•
Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:45
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A ROLLER CHAIN COMPRISING BUSHING LINKS AND PIN LINKS, EACH BUSHING LINK INCLUDING A PAIR OF BUSHINGS AND TWO PAIRS OF BUSHING PLATES HAVING SPACED HOLES AND ASSEMBLED OVER CORRESPONDING ENDS OF THE BUSHINGS TO JOIN THE SAME, EACH PIN LINK INCLUDING A PAIR OF PINS AND TWO PAIRS OF PIN PLATES HAVING SPACED HOLES AND ASSEMBLED OVER CORRESPONDING ENDS OF THE PINS TO JOIN THE SAME, EACH OF SAID PAIRS OF PLATES INCLUDING A WORKING PLATE AND A RESERVE PLATE, THE WORKING PLATES BEING FITTED TIGHTLY ON THE RESPECTIVE BUSHINGS AND PINS AND THE RESERVE PLATES BEING JUST SUFFICIENTLY LOOSE ON THE RESPECTIVE BUSHINGS AND PINS SO THAT THE WORKING PLATES NORMALLY CARRY ALL THE LOAD APPLIED TO THE CHAIN AND EACH RESERVE PLATE IS DISPOSED TO CARRY THE LOAD UPON FAILURE OF THE WORKING PLATE WITH WHICH IT IS PAIRED BEFORE PARTS OF THE FAILED WORKING PLATE INTERFERE WITH THE OPERATION OF THE CHAIN.
Claim 2
Dependent Claim
156 words
A ROLLER CHAIN COMPRISING BUSHING LINKS AND PIN LINKS, EACH BUSHING LINK INCLUDING A PAIR OF BUSHINGS AND TWO PAIRS OF BUSHING PLATES HAVING SPACED HOLES AND ASSEMBLED OVER CORRESPONDING ENDS OF THE BUSHINGS TO JOIN THE SAME, EACH PIN LINK INCLUDING A PAIR OF PINS AND TWO PAIRS OF PIN PLATES HAVING SPACED HOLES AND ASSEMBLED OVER CORRESPONDING ENDS OF THE PINS TO JOIN THE SAME, EACH OF SAID PAIRS OF PLATES INCLUDING A WORKING PLATE AND A RESERVE PLATE, THE WORKING PLATES BEING FITTED TIGHTLY ON THE RESPECTIVE BUSHINGS AND PINS AND THE RESERVE PLATES BEING JUST SUFFICIENTLY LOOSE ON THE RESPECTIVE BUSHINGS AND PINS SO THAT THE WORKING PLATES NORMALLY CARRY ALL THE LOAD APPLIED TO THE CHAIN AND EACH RESERVE PLATE IS DISPOSED TO CARRY THE LOAD UPON FAILURE OF THE WORKING PLATE WITH WHICH IT IS PAIRED BEFORE PARTS OF THE FAILED WORKING PLATE INTERFERE WITH THE OPERATION OF THE CHAIN.
References Cited (Backward Citations)
US1877339A
Cited
US2628107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |