Zero back-pressure conveyor system

Details Zero back-pressure conveyor system Zero back-pressure conveyor system

1997-10-13

2000-05-16

Bidwell, James R.

Conveyors: power-driven

Conveyor section

Endless conveyor

B65G 1500

Patent

active

060623764

ABSTRACT:
An endless conveyor system includes movable lift rails for supporting the conveyed articles on either side of an endless conveying member. The lift rails are defined by end-to-end sections with adjacent ends of adjacent sections simultaneously movable between a lowered position wherein the articles may be engaged by the conveying member and a raised position wherein the articles are lifted above and out of engagement with the conveying members for interrupting the advancement of the articles with zero back-pressure. In another embodiment, a single lift rail formed of linked sections is disposed between parallel conveyor chains moving in concert. The link between adjacent lift rail sections utilizes a "free floating" hinge.

REFERENCES:
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patent: 3545596 (1970-12-01), Turnbough
patent: 3934707 (1976-01-01), Bowman
patent: 3951254 (1976-04-01), Juhrend
patent: 4511030 (1985-04-01), Lem
patent: 5085311 (1992-02-01), Garro
patent: 5125407 (1992-06-01), Sundermann
patent: 5542809 (1996-08-01), Kita et al.
patent: 5685414 (1997-11-01), Nerenhausen, Sr.
patent: 5810158 (1998-09-01), Schiesser et al.

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