Patent US3288271A successfully refreshed from Google Patents.
US3288271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer
Assignee: BURFORD CO
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Filing: 1964-10-08
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Granted: 1966-11-29
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Expires: 1984-10-08
Abstract
No abstract record available.
Inventors
- 👤 Charles E Burford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/32; B65G17/326; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A CONVEYOR COMPRISING OPPOSITE END SPROCKETS, A PAIR OF ENDLESS CHAINS ENGAGED ABOUT SAID SPROCKETS IN SIDE-BY-SIDE RELATIONSHIP TO BE DRIVEN BY SAID SPROCKETS, AT LEAST ONE RECEPTACLE ASSEMBLY INCLUDING A PAIR OF RECEPTACLE MEMBERS EXTENDING TRANSVERSELY WITH RESPECT TO SAID ENDLESS CHAINS, SAID RECEPTACLE MEMBERS INCLUDING BASE PORTIONS AND OPPOSITELY POSITIONED SIDE PORTIONS EXTENDING UPWARDLY FROM THE SIDES OF THE BASE PORTIONS, AND MEANS SECURING THE OPPOSITE END PORTIONS OF SAID RECEPTACLE MEMBERS TO SAID CHAIN MEMBERS SAID MEANS INCLUDING AND ELONGATED SLOT IN THE OPPOSITE ENDS OF EACH RECEPTACLE MEMBER AND EXTENDING IN THE GENERAL LONGITUDINAL DIRECTION OF SAID CHAINS, BRACKETS FIXED WITH RESPECT TO THE ENDLESS CHAINS AT THE OPPOSITE ENDS OF SAID RECEPTACLE MEMBERS AND HAVING INWARDLY EXTENDING PORTIONS SITUATED ADJACENT SAID SLOTS, SAID INWARDLY EXTENDING BRACKET PORTIONS HAVING APERTURES, AND SECURING MEANS RECEIVED THROUGH SAID APERTURES AND SAID SLOTS AT THE OPPOSITE ENDS OF SAID RECEPTACLE MEMBERS TO ADJUSTABLY SECURE SAID RECEPTACLE MEMBERS WITH RESPECT TO SAID ENDLESS CHAINS.
Claim 2
Dependent Claim
164 words
A CONVEYOR COMPRISING OPPOSITE END SPROCKETS, A PAIR OF ENDLESS CHAINS ENGAGED ABOUT SAID SPROCKETS IN SIDE-BY-SIDE RELATIONSHIP TO BE DRIVEN BY SAID SPROCKETS, AT LEAST ONE RECEPTACLE ASSEMBLY INCLUDING A PAIR OF RECEPTACLE MEMBERS EXTENDING TRANSVERSELY WITH RESPECT TO SAID ENDLESS CHAINS, SAID RECEPTACLE MEMBERS INCLUDING BASE PORTIONS AND OPPOSITELY POSITIONED SIDE PORTIONS EXTENDING UPWARDLY FROM THE SIDES OF THE BASE PORTIONS, AND MEANS SECURING THE OPPOSITE END PORTIONS OF SAID RECEPTACLE MEMBERS TO SAID CHAIN MEMBERS SAID MEANS INCLUDING AND ELONGATED SLOT IN THE OPPOSITE ENDS OF EACH RECEPTACLE MEMBER AND EXTENDING IN THE GENERAL LONGITUDINAL DIRECTION OF SAID CHAINS, BRACKETS FIXED WITH RESPECT TO THE ENDLESS CHAINS AT THE OPPOSITE ENDS OF SAID RECEPTACLE MEMBERS AND HAVING INWARDLY EXTENDING PORTIONS SITUATED ADJACENT SAID SLOTS, SAID INWARDLY EXTENDING BRACKET PORTIONS HAVING APERTURES, AND SECURING MEANS RECEIVED THROUGH SAID APERTURES AND SAID SLOTS AT THE OPPOSITE ENDS OF SAID RECEPTACLE MEMBERS TO ADJUSTABLY SECURE SAID RECEPTACLE MEMBERS WITH RESPECT TO SAID ENDLESS CHAINS.
References Cited (Backward Citations)
US331703A
Cited
US421186A
Cited
US2021748A
Cited
US2086070A
Cited
US2358292A
Cited
US2705585A
Cited
US3160262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |