TITLE: CORE SPUN FILTRATION ROVING.
European Patent Application EP0016813 A4

ABSTRACT:
Abstract not available for EP0016813
Abstract of corresponding document: US4225442
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.

INVENTORS:
Tremblay, Maurice H.
Manning, Robert E.
Lanoue, Gerard
Gaiteri Jr., Frank

APPLICATION NUMBER: EP19790901065
PUBLICATION DATE: 12/16/1980
FILING DATE: 03/25/1980

ASSIGNEE: BRUNSWICK CORP (US)
INTERNATIONAL CLASSES: B01D29/11; B01D39/16; B01D39/20; D02G3/36; D02G3/44; (IPC1-7):
B01D27/00; B01D27/02; D02G3/02
EUROPEAN CLASSES: B01D29/11B+/21W; B01D39/16H; B01D39/20M; D02G3/36; D02G3/44G