Filter device

Details Filter device Filter device

1976-04-05

1977-07-05

Lutter, Frank W.

Liquid purification or separation

Filter

With flow controller for material being treated

13762521, 210444, 251311, B01D 2942

Patent

active

040338800

ABSTRACT:
A filter device, particularly a dry filter device for refrigerant in cooling systems, comprises an inlet- and outlet-equipped housing having a chamber containing the filter, which chamber has a sealable aperture for allowing replacement of the filter in the chamber, and a valve having a valve body which in an operating position establishes communication between the inlet and the outlet via the chamber containing the filter and which in a service position establishes communication between the inlet and the outlet around the chamber containing the filter to allow replacement of the filter. The valve body has an evacuation position in addition to the two said positions, in which evacuation position said valve body seals the inlet and establishes communication between the chamber containing the filter and the outlet.

REFERENCES:
patent: 953637 (1910-03-01), McCollom

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