Filter apparatus

Details Filter apparatus Filter apparatus

1975-06-25

1977-09-27

Lutter, Frank W.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

210136, 210420, B01D 2710

Patent

active

040510310

ABSTRACT:
A filter apparatus having a main valve provided with a first portion, a second portion, and an auxiliary valve situated within the valve body adapted to open before an opening of the main valve. Another filter apparatus comprises a main valve and a by-pass valve overflowing the fluid when the fluid pressure in a filter chamber is high. Using the filter apparatus provided with check-valves incorporated in the filter apparatus, a fluid such as oil flowing through a piping system is automatically stopped and the filter element is purified or changed in a short time.

REFERENCES:
patent: 998585 (1911-07-01), Milner
patent: 1874847 (1932-08-01), Arnold
patent: 3080972 (1963-03-01), Smith
patent: 3186549 (1965-06-01), Botstiber
patent: 3229816 (1966-01-01), Rosaen
patent: 3628662 (1971-12-01), Kudlaty

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