Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1978-08-22
1980-09-30
Petrakes, John
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
57210, 57224, 57235, 210457, B01D 2702, B01D 2908, D02G 336, D02G 338
Patent
active
042254426
ABSTRACT:
A low twist, high bulk filtration roving is prepared by wrapping a sliver comprised of individual fibers, around a core in the conventional manner. Exemplary of the bulk fibers which may be employed are naturally occurring fibers such as jute, cotton, animal hair; synthetic polymer fibers, such as acrylic, nylon, polyester, olefin, aramid, teflon; man-made organic fibers deriving from natural sources such as rayon or cellulose acetate; and inorganic fibers such as metal, glass, graphite; or a blend of two or more of these fibers. Examples of the core, which can be continuous filaments, monofilaments or spun yarn, are one or more strands of the same composition as the fibers, or a combination thereof, twisted paper which can be plain, impregnated or metallized, and metal wire. Where the material is capable of being cast in film form, slit film may be employed as the strand(s). The composite roving is wound upon a rigid perforated tubular center to form a filter cartridge.
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Gaiteri, Jr. Frank
Lanoue Gerard
Manning Robert E.
Tremblay Maurice H.
Brunswick Corporation
Heimovics John G.
Lawler William G.
Petrakes John
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