Method of making a water filter
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United States of America Patent
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-
Aug 22, 1989
Issued Date -
N/A
app pub date -
Feb 1, 1988
filing date -
Apr 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A double shell filter including 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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