Liquid purification or separation – Sectional chamber press type – Plates or frames
Patent
1986-05-27
1988-11-01
Fisher, Richard V.
Liquid purification or separation
Sectional chamber press type
Plates or frames
100199, 100295, 210224, B01D 2512
Patent
active
047818298
ABSTRACT:
A membrane filter plate for a filter press with a one-piece, plastic carrier plate, at least one membrane arranged on one side of the carrier plate and provided with spacing bosses for the engagement of a filter cloth and a sealing rim surrounding the carrier plate and the membrane and connecting the same in substantially fluid-tight manner. The sealing surface of the sealing rim parallel to the carrier plate median plane being arranged on the side having the membrane or on either side of the carrier plate. At least one support boss is provided in the central region of the carrier plate. The end face of the support boss parallel to the carrier plate median plane being substantially aligned with the sealing surface of the sealing rim parallel to said median plane and provided laterally with a rotationally symmetrical transition surface facing the membrane which slopes in the direction of the carrier plate median plane. The support boss 16 is constructed in one piece with the carrier plate 18 at least in its area adjacent to the carrier plate median plane 22. The transition surface 30 of the support boss 16 runs from a connecting line 26 of membrane 28 to the support boss 16 for producing one desired bending line 32, 34 initially substantially parallel to the carrier plate median plane 22, then slopes towards the same under an angle of 3.degree. to 15.degree. and then again extends parallel to the carrier plate median plane 22.
REFERENCES:
patent: 3543938 (1970-12-01), Busse et al.
patent: 4052314 (1977-10-01), Busse et al.
patent: 4229304 (1980-10-01), Fismer
patent: 4379051 (1983-04-01), Hiesinger et al.
Fisher Richard V.
Jones W. Gary
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