Filter element

Details Filter element Filter element

1996-06-27

1999-12-21

Walker, W. L.

Liquid purification or separation

Electrical insulating or electricity discharging

210504, 361212, 361215, 361220, B01D 3916

Patent

active

060044624

ABSTRACT:
Resin having a susceptibility to electrostatic charge which is opposite in polarity to the susceptibility to electrostatic charge of a filter sheet or member forming a filter element is impregnated into the filter member. For example, when the filter member is composed of polyester of 50-70 weight percentage and glass fiber of 5-25 weight percentage as well as pulp of 15-35 weight percentage, resin composed of phenol resin of 5-20 weight percentage and melamine resin of 80-95 weight percentage is impregnated into the filter member so that the susceptibility to electrostatic charge of the filter member can be neutralized. Thus, static electricity generated by friction between the filter element and fuel flowing therethrough can be controlled.

REFERENCES:
patent: 4196464 (1980-04-01), Russell
patent: 5085773 (1992-02-01), Danowski
patent: 5154829 (1992-10-01), Degen et al.
patent: 5164084 (1992-11-01), Danowski et al.
patent: 5380432 (1995-01-01), Brandt
patent: 5524673 (1996-06-01), Noone et al.

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