Fluid flow filter and method of making same

Details Fluid flow filter and method of making same Fluid flow filter and method of making same

1993-04-19

1994-02-08

Hart, Charles

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

55495, 55497, 55505, 55511, 55525, 210459, B01D 2708

Patent

active

052845869

ABSTRACT:
A wire mesh filter screen has a flat disc shape and is seated on a flat bottom counterbore in a threaded fitting. A circular knife edged punch pierces a ring of material from the counterbore wall surrounding the disc periphery. A second flat punch axially deforms the ring over the disc periphery to securely retain the screen in the fitting.

REFERENCES:
patent: 2800977 (1957-07-01), Stewart
patent: 3749250 (1973-07-01), Oldford
patent: 5100444 (1992-03-01), Meifitz et al.

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