Membrane tube filter device and disc supports and tension member

Details Membrane tube filter device and disc supports and tension member Membrane tube filter device and disc supports and tension member

1988-02-26

1989-07-11

Fisher, Richard V.

Liquid purification or separation

Plural distinct separators

Filters

210489, 210336, B01D 2914, B01D 2934

Patent

active

048469734

ABSTRACT:
A liquid flow device includes filter tubes which act as reverse osmosis tubes, ultrafiltration tubes or microfiltration tubes. The device also includes a stack of discs having apertures defining a plurality of elongated passages; an end disc provided at each end of the stack of discs; and a membrane tube provided in each elongated passage and projecting at opposite open ends through and beyond the end discs. A liquid inlet feeds liquid into the interior of at least one membrane tube; and a liquid outlet withdraws liquid from inside the membrane tubes. Tubular interconnector members are provided at both open ends of at least two of the membrane tubes for interconnecting the open ends of the various membrane tubes at both ends. At least one elongated tension member extends parallel to the elongated passages defined by the stack of discs; and means is provided for attaching each tension member to the discs, said attaching means cooperating with each elongated tension member for acting onto the end discs for forcing all discs between the end discs tightly together without the provision of an outer housing.

REFERENCES:
patent: 3701431 (1972-10-01), Brown et al.
patent: 3707234 (1972-12-01), Salemi
patent: 4605500 (1986-08-01), Takemura et al.
patent: 4636307 (1987-01-01), Inoue et al.
patent: 4668401 (1987-05-01), Okumura et al.
patent: 4707261 (1987-11-01), Ikeyama et al.

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