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Class Information
Number: 210/216
Name: Liquid purification or separation > With means to add treating material > Directly applied to separator > Moving filter medium
Description: Apparatus by which the additional material is applied to a moving filter medium.

Sub-classes under this class:

Class Number Class Name Patents
210/217 Drum 28

Patents under this class:

Patent Number Title Of Patent Date Issued
8087516 System and process for treatment of a contaminated fluid Jan. 3, 2012
7470365 Sludge concentration system which have functions for automatically charging a coagulant and for automatically controlling the concentration of a sludge Dec. 30, 2008
7074339 Apparatus for separating solids from a liquid Jul. 11, 2006
6350377 Device for thickening liquids or sludges Feb. 26, 2002
6143186 Device for continuous filtration of liquids Nov. 7, 2000
5895567 Biological waste fluid cleaner Apr. 20, 1999
5707512 Apparatus for the separation of solid-liquid mixtures Jan. 13, 1998
5366626 Filter apparatus Nov. 22, 1994
5308479 Sewage disposal apparatus employing circulating filter media May. 3, 1994
5204009 Slurry rising apparatus and method therefor Apr. 20, 1993
5116423 Apparatus for washing pulp May. 26, 1992
5021166 Method and an apparatus for extracting a liquid from a sludge Jun. 4, 1991
4961862 Amendment addition system and method for twin belt press filter Oct. 9, 1990
4919158 Method and apparatus for washing pulp Apr. 24, 1990
4861496 Electro-dewatering method and apparatus Aug. 29, 1989
4595499 Gravity belt thickener and belt press combination Jun. 17, 1986
4539827 Belt washing improvements Sep. 10, 1985
4395815 Method of making electric machines Aug. 2, 1983
4388186 Sludge treating apparatus Jun. 14, 1983
4341628 Belt pressure filter Jul. 27, 1982
4204959 Apparatus for the treatment and composting of biological waste May. 27, 1980
4186089 Method and apparatus for dewatering of sludgy substance Jan. 29, 1980
4123360 Method and apparatus for the liquid treatment of filter cakes Oct. 31, 1978
4105558 Apparatus for draining of muddy liquids Aug. 8, 1978
3966611 Filter Jun. 29, 1976
3966610 Filter Jun. 29, 1976

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