Scraper filter system

Details Scraper filter system Scraper filter system

1991-08-06

1993-02-16

Silverman, Stanley S.

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

210374, 210415, 2104971, 210238, 209389, 100117, B01D 2948, B01D 2964

Patent

active

051868342

ABSTRACT:
A scraper filter system, which comprises a screw-formed spiral impeller within a cylindrical filter element, and a scraper in the groove formed along the spiral end of the impeller for engagement with the internal surface of the filter element for scrapingly removing solid components deposited on the surface of the filter element.
The scraper is comprised of a plurality of separate arcuate segments each being urged radially in the external direction by a resilient member, and also includes a securing element for preventing movement of each segment in the groove with respect to the spiral edge of the spiral impeller.

REFERENCES:
patent: 854288 (1907-05-01), Goreau
patent: 2607679 (1952-08-01), Weiss
patent: 3216818 (1964-03-01), Koelsch
patent: 3695173 (1972-10-01), Cox
patent: 3721184 (1973-03-01), French
patent: 3938434 (1976-02-01), Cox
patent: 4041854 (1977-08-01), Cox
patent: 4217220 (1980-08-01), Egli
patent: 4347134 (1982-08-01), Svehaug
patent: 5061366 (1991-10-01), Arai
patent: 5087365 (1992-02-01), Davis

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