Method of making a water filter

Details Method of making a water filter Method of making a water filter

1989-02-17

1991-05-21

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264122, 264DIG48, B32B 110

Patent

active

050173189

ABSTRACT:
The specification discloses a double shell filter comprising an inner shell of bounded 80 to 400 U.S. mesh screen carbon particles and an outer shell of bonded 20 to 80 mesh screen carbon particles wherein the inner and outer particles are bonded internally to each other and the two shells are bonded together preferably by an ultra high molecular weight polymer binder having a melt index of less than about 1 gram per ten minutes as determined by ASTM D1238 at 190 degrees C. and 15 kilograms load.

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patent: 4062807 (1977-12-01), Shaler et al.
patent: 4608213 (1986-08-01), Korumizawa et al.
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"Designing with the Toughest of All Plastics", reprinted from Plastic Design Forum, May/Jun. 1978 by Edgar O. Prout.

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