Patent US3340745A successfully refreshed from Google Patents.
US3340745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrationless timing chain
Assignee: Acme Chain Corp
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Filing: 1965-11-15
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Granted: 1967-09-12
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Expires: 1985-11-15
Abstract
No abstract record available.
Inventors
- 👤 John F Mccann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:55
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A SILENT CHAIN, THE COMBINATION INCLUDING A PLURALITY OF OVERLAPPING SETS OF SYMMETRICAL INSIDE LINKS SHAPED TO ENGAGE SPROCKET TEETH WITH EACH LINK HAVING A PAIR OF TRANSVERSE APERTURES SUBSTANTIALLY CIRCULAR IN FORM, ARTICULATING PINTLES DISPOSED IN THE ALIGNED APERTURES OF THE OVERLAPPING SETS OF INSIDE LINKS, EACH PINTLE BEING SUBSTANTIALLY CIRCUIT IN FORM EXCEPT FOR FLAT PORTIONS AT ITS OPPOSITE ENDS, AND GUIDE LINKS EACH HAVING A PAIR OF TRANSVERSE APERTURE SUBSTANTIALLY CIRCULAR IN FORM EXCEPT FOR FLATTENED WALLS FACING OPPOSITE ENDS OF THE GUIDE LINK, THE FLAT PORTIONS OF THE PINTLES BEING DISPOSED IN THE APERTURES IN THE GUIDE LINKS WITH A SLIGHT CLEARANCE BETWEEN THE FLAT PORTIONS OF THE PINTLE AND THE FLATTENED WALLS OF THE APERTURES IN THE GUIDE LINKS PERMITTING LIMITED MOVEMENT OF THE GUIDE LINKS UPON THE PINTLES.
Claim 2
Dependent Claim
135 words
IN A SILENT CHAIN, THE COMBINATION INCLUDING A PLURALITY OF OVERLAPPING SETS OF SYMMETRICAL INSIDE LINKS SHAPED TO ENGAGE SPROCKET TEETH WITH EACH LINK HAVING A PAIR OF TRANSVERSE APERTURES SUBSTANTIALLY CIRCULAR IN FORM, ARTICULATING PINTLES DISPOSED IN THE ALIGNED APERTURES OF THE OVERLAPPING SETS OF INSIDE LINKS, EACH PINTLE BEING SUBSTANTIALLY CIRCUIT IN FORM EXCEPT FOR FLAT PORTIONS AT ITS OPPOSITE ENDS, AND GUIDE LINKS EACH HAVING A PAIR OF TRANSVERSE APERTURE SUBSTANTIALLY CIRCULAR IN FORM EXCEPT FOR FLATTENED WALLS FACING OPPOSITE ENDS OF THE GUIDE LINK, THE FLAT PORTIONS OF THE PINTLES BEING DISPOSED IN THE APERTURES IN THE GUIDE LINKS WITH A SLIGHT CLEARANCE BETWEEN THE FLAT PORTIONS OF THE PINTLE AND THE FLATTENED WALLS OF THE APERTURES IN THE GUIDE LINKS PERMITTING LIMITED MOVEMENT OF THE GUIDE LINKS UPON THE PINTLES.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |