Solid element fluid filter for removing small particles from flu

Details Solid element fluid filter for removing small particles from flu Solid element fluid filter for removing small particles from flu

1987-03-09

1991-05-14

Therkorn, Ernest G.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210498, 55278, 156902, 156905, B01D 2944

Patent

active

050153811

ABSTRACT:
A fluid filter element, filter, and process for its fabrication, wherein the filter element includes a flat base and a thin layer deposited thereupon having a pattern of channels through which a fluid may flow. In operation, the element is pressed against a flat surface, preferably the back side of another element in a stack of filter elements, whereupon the channels become closed conduits. The channels have a minimum dimension of the thickness of the layer, so that larger particles may not pass therethrough. Fabrication of the thin layer with the channels therein is preferably accomplished by masking a pattern corresponding to the channels and then vapor depositing the remainder of the thin layer, as masking and deposition permits accurate control of the height of the deposited layer, and, then, the minimum dimension of the channels.

REFERENCES:
patent: 3111963 (1963-11-01), Brockwell
patent: 3700111 (1972-10-01), Bode
patent: 4267045 (1981-05-01), Hoof
patent: 4620898 (1986-11-01), Banks et al.
patent: 4634495 (1987-01-01), Gobrecht et al.
patent: 4664814 (1987-05-01), Bachman et al.
patent: 4681681 (1987-07-01), Drori

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