US3767034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-type conveyors
Assignee: Individual
•
Filing: 1971-10-01
•
Granted: 1973-10-23
•
Expires: 1991-10-01
Abstract
Abstract A conveyor chain capable of use on a conveyor/elevator for agricultural produce is assembled from a plurality of identical transversely extending link members each of which is bent at its ends, first in a horizontal plane to form sockets for the transverse portion of the next link member, and then in a vertical plane to retain the next link member in the sockets and form upstanding side members which combine with the side members on the other links to provide shallow walls which prevent produce carried by the conveyor chain from rubbing against stationary parts of the conveyor and open out on passing around the chain sprockets to create a self-cleaning effect.
Inventors
- 👤 W Teagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:14
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/08; B65G17/083; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
217 words
A chain conveyor comprising a horizontal input section and a discharge section which is angularly adjustable about a horizontal axis relative to said input section, chain sprockets rotatably mounted at the inner end of said input section and the outer end of said discharge section, driving means operatively connected to one of said chain sprockets, an endless conveyor chain passing around said sprockets and made up of a plurality of interconnected bars each having a straight horizontal central portion and ends bent out of alignment with said central portion to form upwardly open sockets which pivotally receive the central portion of the next bar and to form outer wall portions of the conveyor, said ends each consisting of an inner portion bent through an obtuse angle relative to and in the same horizontal plane as the central portion and an outer portion bent upwardly and outwardly from said inner portion at acute angles to both the horizontal and vertical planes of said central portion, first rollers rotatably mounted at the junction of said input and discharge sections in engagement with the upper surfaces of the operative and return runs respectively of the conveyor chain and second rollers rotatably mounted on said discharge section in engagement with the lower surface of the return run of the conveyor chain.
Claim 2
Dependent Claim
217 words
A chain conveyor comprising a horizontal input section and a discharge section which is angularly adjustable about a horizontal axis relative to said input section, chain sprockets rotatably mounted at the inner end of said input section and the outer end of said discharge section, driving means operatively connected to one of said chain sprockets, an endless conveyor chain passing around said sprockets and made up of a plurality of interconnected bars each having a straight horizontal central portion and ends bent out of alignment with said central portion to form upwardly open sockets which pivotally receive the central portion of the next bar and to form outer wall portions of the conveyor, said ends each consisting of an inner portion bent through an obtuse angle relative to and in the same horizontal plane as the central portion and an outer portion bent upwardly and outwardly from said inner portion at acute angles to both the horizontal and vertical planes of said central portion, first rollers rotatably mounted at the junction of said input and discharge sections in engagement with the upper surfaces of the operative and return runs respectively of the conveyor chain and second rollers rotatably mounted on said discharge section in engagement with the lower surface of the return run of the conveyor chain.
Claim 3
Dependent Claim
29 words
A conveyor chain according to claim 1, wherein said upwardly bent portions lie in common planes on each side of the conveyor chain and form shallow upstanding side walls.
Claim 4
Dependent Claim
21 words
A conveyor chain according to claim 1, wherein the transverse portion of each link carries an upstanding plate of resilient material.
Claim 5
Dependent Claim
85 words
A conveyor chain comprising a series of interconnected links, each of which comprises a transversely extending horizontal portion and two end portions bent to form upwardly open sockets which pivotally receive the transverse portion of the next link, the sockets at the ends of each link comprising in succession a first portion bent in a horizontal plane through an obtuse angle and a terminal portion bent upwardly and outwardly from the end of said first portion at acute angles to both the horizontal and vertical.
Claim 6
Dependent Claim
85 words
A conveyor chain comprising a series of interconnected links, each of which comprises a transversely extending horizontal portion and two end portions bent to form upwardly open sockets which pivotally receive the transverse portion of the next link, the sockets at the ends of each link comprising in succession a first portion bent in a horizontal plane through an obtuse angle and a terminal portion bent upwardly and outwardly from the end of said first portion at acute angles to both the horizontal and vertical.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |