Link chain for chain conveyors and chain wheel thereof

Details Link chain for chain conveyors and chain wheel thereof Link chain for chain conveyors and chain wheel thereof

2011-08-16

2011-08-16

Bidwell, James R (Department: 3651)

Conveyors: power-driven

Conveyor section

Pusher conveyor and separate load support surface

C198S730000

Reexamination Certificate

active

07997402

ABSTRACT:
The invention relates to a link chain for scraper chain conveyors with vertical chain links which are interlinked in an articulated manner and horizontal chain links, wherein vertical chain links have around the full circumference a constant cross-sectional profile provided on the outside with a flat section and on the inside with a circular arc and horizontal chain links have front sections which have a straight front zone, wherein longitudinal limbs, which connect front sections, of horizontal chain links are provided on their outer faces with a recess. In order to improve the running characteristics of link chain in the event of low surface pressures between chain wheel and horizontal chain links, horizontal chain links have, on both sides in recesses, entrainment means for positive-locking entrainment of scrapers which can be connected to horizontal chain links and/or cross-sectional profile of the vertical chain links is in each case provided with a bevel at the transition of the flat section into the circular arc. The invention also relates to a chain wheel which is suitable for this chain.

REFERENCES:
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patent: 5931283 (1999-08-01), Meya
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patent: 7159707 (2007-01-01), Malitzki et al.
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patent: 1525047 (1970-04-01), None
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patent: 19724586 (1998-11-01), None
patent: WO8803906 (1988-06-01), None
International Search Report PCT/EP2006/002734; Filed Mar. 24, 2006.

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