Title: Apparatus for measuring out pulverulent materials

Abstract: In apparatus for measuring out pulverulent materials, including a screw rotatably mounted in a barrel having an outlet at one end, the ability of the apparatus to impart a uniform flow rate to materials having poor flow properties is improved by interrupting the thread of the screw between any two circumferentially spaced generatrices of the cylindrical surface thereof and by disposing scraping elements to cooperate with the screw thread.

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Inventors: Durieux, Teddy (Jemeppe-sur-Sambre, BE)

Application Number: 454799
Filing Date: 1974-03-26
Publication_date: 1976-02-17
Assignee: Solvay & Cie (Brussels, BE)
Primary Class(es): 222/404 417/900, 425/208
Other Classes:
US Patent Ref:

383556	May, 1888	Brainard	198/213.
3023455	Mar, 1962	Geier et al.	259/2.

Other Refs: 258,283

Dec, 1967	SU

Primary Examiner: Tollberg, Stanley H.
Assistant Examiner: Lane, Hadd
Attorney: Spencer & Kaye