Liquid purification or separation – Casing divided by membrane into sections having inlet – Plural diverse structured membranes within a single casing
Patent
1996-02-14
1997-07-29
Nessler, Cynthia L.
Liquid purification or separation
Casing divided by membrane into sections having inlet
Plural diverse structured membranes within a single casing
21032175, 21032184, 156290, B01D 3916
Patent
active
056518889
ABSTRACT:
A pair of filtering membranes are solidly bonded to a membrane-supporting plate by fusibly bonding each of the filtering membranes to the resin membrane-supporting plate. A main fusible domain is formed along peripheral edges of each of the filtering membranes. In addition, a plurality of subordinate fusible domains are intermittently formed in plural locations on one side or on both sides of the main fusible domain. By virtue of the above structure, bonding strength is secured by the main fusible domain, and yet, bonding strength is reinforced by locally provided subordinate fusible domains. A channel is formed in the membrane-supporting plate so that permeated liquid can swiftly flow through the filtering system. In addition, a plurality of projections are formed on peripheral edges of a filtration membrane cartridge facing inner surface of each gutter formed inside of each slit plate by way of causing the respective projections to slidably come into contact with the inner surface of the gutter. This in turn effectively minimizes frictional force between the filtration membrane cartridge and the gutter to enable the operator to easily insert and remove the filtration membrane cartridge into and from the gutter of the slit plate.
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Ishida Hiroshi
Izumi Kiyoshi
Moro Masashi
Shimizu Kenji
Soeda Yuji
Kubota Corporation
Nessler Cynthia L.
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