Expressing filter plate for filter press of expression type

Details Expressing filter plate for filter press of expression type Expressing filter plate for filter press of expression type

1976-04-27

1976-10-26

Hart, Charles N.

Liquid purification or separation

Sectional chamber press type

Medium clamped in joint

B01D 2512

Patent

active

039882420

ABSTRACT:
An expressing filter plate comprising a base plate and a diaphragm sheet covering the base plate and having a filter surface, with a pressure fluid chamber formed between the base plate and the diaphragm sheet. The diaphragm sheet is formed, in its peripheral portion to be clamped between pressed filter plates, with a fluid passing opening in communication with a fluid passage in the base plate. A covering member having a tubular portion fitting in the opening is made of a material having higher hardness than the diaphragm sheet. The covering member has a flange portion formed with fluid grooves for maintaining the tubular portion in communication with filtrate grooves in the filter surface of the diaphragm sheet.

REFERENCES:
patent: 3017996 (1962-01-01), Riley
patent: 3289845 (1966-12-01), Weber
patent: 3347383 (1967-10-01), Augerot
patent: 3737041 (1973-06-01), Kitajima et al.
patent: 3836002 (1974-09-01), Radford
patent: 3926811 (1975-12-01), Ramsteck
patent: 3931014 (1976-01-01), Heimbach

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