Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-07-22
1977-02-08
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210504, 210505, 210509, B01D 1300
Patent
active
040071146
ABSTRACT:
Improved filter media comprised of negatively charged high surface area fibrous filter material the surface of which is modified by treatment with a melamine-formaldehyde cationic colloid, processes for the production thereof, and use in liquid filtration to remove submicron contaminants including negatively charged particles. Glass microfiber treated with Parez 607 colloid is preferred.
REFERENCES:
patent: 3158532 (1964-11-01), Pall et al.
patent: 3238056 (1966-03-01), Pall et al.
AMF Incorporated
Price George W.
Spear, Jr. Frank A.
Worth Charles J.
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