Filter elements for gas or liquid and methods of making such ele

Details Filter elements for gas or liquid and methods of making such ele Filter elements for gas or liquid and methods of making such ele

1977-03-18

1978-09-05

Cuchlinski, Jr., William A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

55524, 55DIG25, 210508, 210509, B01D 3916, B01D 3920

Patent

active

041118154

ABSTRACT:
A filter element for gas or liquid comprises a layer of glass, ceramic, metal, mineral wool or organic fibers containing, wholly within the layer, an apertured sheet, for example of steel or aluminum, the fibers being bound to one another throughout the layer and through the apertures, as well as to the sheet itself, by a synthetic resin such as silicone resin or polyurethane. The filter element is formed by mounting the apertured sheet a selected distance above a filter surface on which the fibers build up while a slurry containing the fibers is drained through the filter surface. When the fibers have built up to a predetermined distance above the sheet, the fibers containing the sheet are removed and the assembly impregnated with a synthetic resin and cured. Two or more grades of slurry mixture may be used in succession to produce a density grading through the thickness of the fibrous layer. In the case of cylindrical elements, end caps are fitted and made fluid tight by a synthetic resin, a taper fit or a gasket.

REFERENCES:
patent: 2746607 (1956-05-01), Hess
patent: 2768754 (1956-10-01), Briggs
patent: 3093583 (1963-06-01), Stoll
patent: 3347391 (1967-10-01), Steensen
patent: 3399516 (1968-09-01), Hough, Jr. et al.
patent: 3417013 (1968-12-01), Roberts
patent: 3763633 (1973-10-01), Soltis
patent: 3834547 (1974-09-01), Renjilian

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