Conveying device for exact metering, wherein at least one projec

Details Conveying device for exact metering, wherein at least one projec Conveying device for exact metering, wherein at least one projec

1993-12-20

1995-06-06

Merritt, Karen B.

Fluid sprinkling, spraying, and diffusing

Processes

239689, 222414, 198724, B65G 3312, B65G 6546

Patent

active

054215137

ABSTRACT:
A conveying device for metering of bulk material includes a sleeve having an interior region having an inner threaded groove. The threaded groove is disrupted by a plurality of cross-wise extending compensating grooves. The conveying device further includes a rotatable part, at least a portion of the rotatable part being disposed inside of the interior region of the sleeve. The rotatable part has one or more flexible first bodies, an outermost point of the first bodies extending to an inner wall of the sleeve. The device conveys bulk material as the rotatable part rotates such that the first bodies move along the threaded groove from one compensating groove to a next compensating groove.

REFERENCES:
patent: 425338 (1890-04-01), Muller
patent: 2934201 (1960-04-01), O'Brien
patent: 3071240 (1963-01-01), Graham et al.
patent: 4029028 (1977-06-01), Griffiths
patent: 4986475 (1991-01-01), Spadafora et al.
Japanese Patent Abstract, "Feeding Device for Solid Tablet", vol. 11, Abstract No. 296, Japanese Patent Application No. 60-229385, published Apr. 23, 1987.

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