Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1985-04-25
1987-05-12
Spear, Frank
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
2104932, B01D 1300
Patent
active
046648011
ABSTRACT:
End capping a filter cartridge. The filter cartridge contains a hollow central core for passage of fluid, a membrane around the central core through which the fluid also passes, at least one support for the membrane in intimate contact with the membrane, a cage for holding the membrane and the support in contact with the central core, and an end cap for sealing the cartridge. This method comprises (a) allowing a first resin, such as polyurethane, to cure within the end cap until a viscosity of from about 200,000 to about 3,000,000 cps is achieved, (b) placing a second resin, which has a viscosity of from about 1,500 to about 20,000 cps, on top of the first resin such that an interface is formed between the resins, (c) placing the membrane, support, core, and cage to such a depth within said end cap that they penetrate within the second resin, (d) allowing the second resin to penetrate the capillaries of the membrane and support, (e) placing the membrane, support, core, and cage through the first resin prior to the gelation of the first resin, and (f) allowing the resins to completely cure and effectively seal the filter cartridge.
Brunswick Corporation
Greif Art
Heimovics John G.
Meiklejohn Paul T.
Spear Frank
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