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Patent Searching and Data


Title:
FLEXIBLE TUBULAR FILTER MEDIUM
Document Type and Number:
WIPO Patent Application WO/1990/010487
Kind Code:
A1
Abstract:
A filter medium having a tubular, round braided texture obtained by intertwining a plurality of yarns helically in both leftward and rightward directions, or a filter medium produced by providing a fiber assembly layer on the circumferential surface of the above-mentioned filter medium. Particularly, a flexible tubular filter medium free from flex blocking caused by bending deformation, undergoing little textural change at the inner and outer circumferential portions of a bent part thereof, and having a high particle removing rate and a long lifetime, and a flexible filter element consisting of this filter medium held in a flexible casing. This invention is usefully applied to a liquid filter, especially, a fuel filter for automobiles.

Inventors:
TANI YATSUHIRO (JP)
HAYASHI TOSHIAKI (JP)
Application Number:
PCT/JP1990/000328
Publication Date:
September 20, 1990
Filing Date:
March 13, 1990
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
B01D29/11; B01D39/08; D04C1/06; F02M37/22; F02M37/34; (IPC1-7): B01D29/13; B01D39/08
Foreign References:
JPS437988Y1
JPS63294911A1988-12-01
JPS57143295U1982-09-08
JPS52118332U1977-09-08
Other References:
See also references of EP 0489157A4
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