US3241309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Columbus McKinnon Corp
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Filing: 1963-12-04
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Granted: 1966-03-22
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Hadley C Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:45
CPC Classifications
F; F16; F16G; F16G15/00; F16G15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A JOINER LINK ASSEMBLY COMPRISING A PAIR OF INDENTICAL, SUBSTANTIALLY U-SHAPED, HALF COUPLING LINKS EACH HAVING ONE LEG TERMINATING IN AN EYE PORTION HAVING FLAT OPPOSITE SIDES AND THE OTHER LEG TERMINATING IN AN END PORTION NOTCHED INWARDLY THEREOF TO DEFINE A CLEVIS DEVICE, THE EYE AND CLEVIS PORTIONS OF SAID HALF LINKS BEING INTERDIGITATED AND PROVIDED WITH AXIALLY ALIGNED BORES, A HINGE PIN PASSING THROUGH ALL OF SAID BORES TO PIVOTALLY JOIN SAID HALF LINKS, SAID PIN HAVING OPPOSITE END PORTIONS OF SUBSTANTIALLY EQUAL AND UNIFORM DIAMETER PASSING THROUGH THE INTERDIGITATED ENDS OF THE HALF LINKS AND HAVING A PORTION OF ENLARGED DIAMETER DISPOSED BETWEEN SAID COUPLING LINKS LEG PORTIONS, A PAIR OF COILED SPRING MEMBERS, EACH ELASTICALLY CONSTRICTED UPON SAID PIN AND BEARING LATERALLY AGAINST OPPOSITE SIDES OF SAID ENLARGED DIAMETER PORTION OF SAID PIN, THEREBY DETACHABLY LOCKING SAID PIN AND HALF COUPLING LINKS IN ASSEMBLED RELATION, AND SHIELD MEANS CARRIED BY SAID PIN BETWEEN SAID LINK PORTIONS AND EXTENDING RADIALLY ADJACENT TO AND BEYOND THE DIAMETRICAL EXTENT OF SAID SPRING MEMBERS AND THEREBY PROTRUDING THEREBEYOND TO SHIELD SAID SPRING MEMBERS FROM CONTACTS WITH FOREIGN OBJECTS.
Claim 2
Dependent Claim
188 words
A JOINER LINK ASSEMBLY COMPRISING A PAIR OF INDENTICAL, SUBSTANTIALLY U-SHAPED, HALF COUPLING LINKS EACH HAVING ONE LEG TERMINATING IN AN EYE PORTION HAVING FLAT OPPOSITE SIDES AND THE OTHER LEG TERMINATING IN AN END PORTION NOTCHED INWARDLY THEREOF TO DEFINE A CLEVIS DEVICE, THE EYE AND CLEVIS PORTIONS OF SAID HALF LINKS BEING INTERDIGITATED AND PROVIDED WITH AXIALLY ALIGNED BORES, A HINGE PIN PASSING THROUGH ALL OF SAID BORES TO PIVOTALLY JOIN SAID HALF LINKS, SAID PIN HAVING OPPOSITE END PORTIONS OF SUBSTANTIALLY EQUAL AND UNIFORM DIAMETER PASSING THROUGH THE INTERDIGITATED ENDS OF THE HALF LINKS AND HAVING A PORTION OF ENLARGED DIAMETER DISPOSED BETWEEN SAID COUPLING LINKS LEG PORTIONS, A PAIR OF COILED SPRING MEMBERS, EACH ELASTICALLY CONSTRICTED UPON SAID PIN AND BEARING LATERALLY AGAINST OPPOSITE SIDES OF SAID ENLARGED DIAMETER PORTION OF SAID PIN, THEREBY DETACHABLY LOCKING SAID PIN AND HALF COUPLING LINKS IN ASSEMBLED RELATION, AND SHIELD MEANS CARRIED BY SAID PIN BETWEEN SAID LINK PORTIONS AND EXTENDING RADIALLY ADJACENT TO AND BEYOND THE DIAMETRICAL EXTENT OF SAID SPRING MEMBERS AND THEREBY PROTRUDING THEREBEYOND TO SHIELD SAID SPRING MEMBERS FROM CONTACTS WITH FOREIGN OBJECTS.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |