Filter device

Details Filter device Filter device

1990-06-06

1991-10-01

Hruskoci, Peter

Liquid purification or separation

With repair or assembling means

210443, 210450, 210453, 210455, 2104931, 21049701, 210499, B01D 2900

Patent

active

050531298

ABSTRACT:
A filter device having a cleanable filter element for use in an oil burner system is provided. The filter device has a housing having a chamber with inlet and outlet passages and has a filter element made of stainless steel cleanable wire woven mesh. The filter element has nylon end caps and divides the chamber into an outer annular inlet space and an inner central outlet space. The filter element end cap configuration allows the filter to be used in many different housings since the end cap has a number of specific, calculated, mating surfaces to receive each housing contact surface. A helical compression spring disposed within the filter element applies radial outward forces on the sides of the mesh cylinder to prevent collapsing of the filter element due to differential pressure caused by dirt accumulation.

REFERENCES:
patent: 1095198 (1914-05-01), Finch
patent: 1741705 (1929-12-01), Liddell
patent: 2076935 (1937-04-01), Burckhalter
patent: 2183616 (1939-12-01), Korte
patent: 2253686 (1941-08-01), Burckhalter
patent: 3007579 (1961-11-01), Pall
patent: 3207311 (1965-09-01), Kasten
patent: 4817437 (1989-04-01), Dennis et al.

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