Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Removable cartridge or hand-manipulated container
Patent
1987-10-23
1989-11-21
Fisher, Richard V.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Removable cartridge or hand-manipulated container
210314, 210451, 210488, 210489, 21049701, B01D 2302, B01D 2314
Patent
active
048820520
ABSTRACT:
A filter structure including inlet and outlet members between which is sandwiched a suitable filtration media, such as activated carbon and mechanical filters, either being taken alone or in combination with one another. The upper inlet member is provided with substantially circular arrays of openings being arranged at spaced intervals about imaginary circles of different diameters and having a common center. The openings further removed from the common center of the imaginary circles are of greater diameter. The surface in which the openings are provided tapers downwardly and outwardly from the aforementioned common center causing liquid deposited thereon to seek passage through the openings furthest removed from the aforesaid common center. The second, lower member is provided with three (3) sets of arrays similar to that provided in the upper inlet member. By indexing the two members relative to one another after preferably equal usage intervals have elapsed more efficient use of all of the filter material or more uniform use of all the filter material is assured. Indexing of the two members is facilitated by a cooperating projection and detents to simplify appropriate alignment.
REFERENCES:
patent: 4059528 (1977-11-01), Grosshandler
patent: 4283283 (1981-08-01), Zimmerman
patent: 4352735 (1982-10-01), Turetsky
patent: 4364756 (1982-12-01), Clarke et al.
patent: 4448695 (1984-05-01), Gordan, Jr. et al.
patent: 4711718 (1987-12-01), Nelson, Jr.
Fisher Richard V.
Millard Wanda L.
Purewater Sciences International, Inc.
Weinstein Louis
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