Title: Flock fiber feeding apparatus having a plurality of impellers and a venturi flow tube

Abstract: Apparatus for feeding flock fibers comprising an upwardly open flock-receiving hopper. The hopper has a bottom discharge passage under which is mounted metering apparatus providing a plurality of discharge openings of controllably variable size. An upper impeller having a plurality of downwardly angled blades is rotatably driven within the hopper passage to urge the flock fibers to fall downwardly through the discharge openings into a cylindrical pump chamber. A lower impeller is rotatably driven within the pump chamber to sweep falling flock fibers into a pump throat in communication with a venturi flow tube through which a supply of air is passed. The air flowing through the venturi flow tube creates suction to draw the fibers within the throat into the venturi flow tube for entrainment with the air stream.

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Inventors: McHugh, John P. (Lexington, KY, US)

Application Number: 783801
Filing Date: 1977-04-01
Publication_date: 1979-12-11
Assignee: Solar Suede Corporation (Lexington, KY)
Primary Class(es): 222/636 222/227, 222/240
Other Classes:
US Patent Ref:

1674391	Jun, 1928	Dunnagan	222/193.
1750147	Mar, 1930	Wright	222/193.
1752956	Apr, 1930	Lex	222/193.
2740230	Apr, 1956	Clapper	222/193.
2770912	Nov, 1956	Deem	222/193.
2795079	Jun, 1957	Santarelli	222/193.
3201001	Aug, 1965	Roberts et al.	222/194.
3251512	May, 1966	Irving	222/227.
3347469	Oct, 1967	Ross et al.	239/302.
3528588	Sep, 1970	Moore	222/193.

Other Refs:
Primary Examiner: Spar, Robert J.
Assistant Examiner: Silverberg, Fred A.
Attorney: Jenkins, Coffey, Hyland, Badger & Conard