Title: Apparatus for metering semi-flowable material

Abstract: A multistage volumetric feeder has a storage hopper for storing a mass of semi-flowable material, such as strand fiberglass, asbestos, or titanium dioxide. The material is bottom unloaded and passed through several stages of pressure reduction, aeration, and conditioning to loosen the material and place it in a state of substantially constant density. The conditioned material is further prevented from bridging and compacting as it is volumetrically delivered to a metering stage through a segregation stage. Because the semi-flowable material is placed in an uncompacted state of substantially constant density, the feeder is capable of delivering a precise mass of material over a wide range of flow rates.

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Inventors: Fassauer, Arthur L. (Canyon, TX)

Application Number: 06/206645
Filing Date: 1980-11-13
Publication_date: 1983-07-12
Assignee: GEOSOURCE INC

Primary Class(es): 222/227 366/296, 222/241
Other Classes: B65D88/68; B65D88/00; B01F7/24
US Patent Ref:

2612298	September, 1952	Wearne	222/410	Discharge apparatus for coal hoppers
3085756	April, 1963	Danforth et al.	366/296	Apparatus and method for pulping
3448968	June, 1969	Young	366/338	SOLIDS FLOW COLLECTOR
3855368	December, 1974	Prochazka et al.	366/340	APPARATUS FOR BRINGING FLUID PHASES INTO MUTUAL CONTACT
3904335	September, 1975	Watkins	222/410	Apparatus for felting wafers in waferboard production
3981417	September, 1976	Fassauer	222/227	System for aerating and fluidizing particulate material
4174054	November, 1979	Hubbard	222/241	Volumetric feeder for metering particulate material

Other Refs: GB446990GB713181GB844788GB931117

May, 1936
August, 1954
August, 1960
July, 1963

Primary Examiner: Tollberg, Stanley H.
Assistant Examiner:
Attorney: Arnold, White & Durkee

Claims:

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