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Title:
FILTER BODY FOR GAS
Document Type and Number:
Japanese Patent JPS5738917
Kind Code:
A
Abstract:

PURPOSE: To improve a collecting efficiency and a durability of a filter body together, by using a filter medium consisting of laminated plural layers of filtrating materials made of nonwoven clothes etc. having different densities of fiber aggregations.

CONSTITUTION: A filter body F is formed with a filtrating material A having a density of coarsely aggregated fibers, a material B having a density of densely one and a material C having an intermediate density, all of which are arranged as A, B, C in sequence from the outside to the center of the body. Air to be filtrated enters from the outside of the body F i.e. from the outer surface of the filtrating material A having a coarse density, and is sucked from a hole D1 of the most inside material C having a dense density, to be discharged.


Inventors:
UMETSU NORIO
DOI YASUFUMI
KADOWAKI MASAHIRO
YOKOTA TADASHI
Application Number:
JP11474080A
Publication Date:
March 03, 1982
Filing Date:
August 22, 1980
Export Citation:
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Assignee:
DYNIC CORP
International Classes:
B01D39/16; B01D46/00; B01D46/12; (IPC1-7): B01D39/16; B01D46/12
Domestic Patent References:
JPS5316980U1978-02-13
JPS52139679A1977-11-21
JPS54128871A1979-10-05
JPS4618535Y11971-06-28