Filter apparatus with a spring loaded safety valve plate

Details Filter apparatus with a spring loaded safety valve plate Filter apparatus with a spring loaded safety valve plate

1989-04-19

1991-05-28

Dawson, Robert A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

210136, 210446, B01D 2710

Patent

active

050192515

ABSTRACT:
The invention relates to a filter apparatus for filtering oil in particular. The object is to provide a filter apparatus reliable in operation and simple in construction. A spring-loaded (22) valve plate (18) is provided at one end (5) of a casing surrounding a tubular filter cartridge (2). The valve plate comprises, at a distance from its outer edge, an annular cutting edge (19) sealing against the end (5) of the casing. Oil flows radially inwards through the filter cartridge (2). When the filter (2) is gradually blocked by impurities, the pressure of the oil rises outside the filter cartridge. This pressure acts on an annular surface (31) between the outer edge and the sealing cutting edge (19) of the valve plate. When the pressure rises sufficiently, the valve plate is displaced away from the end (5) of the casing, whereby oil may flow through the connection so obtained past the filter (2) directly into its central cavity (11).

REFERENCES:
patent: 3557957 (1971-01-01), Baldwin
patent: 3853763 (1974-12-01), Hall
patent: 3912630 (1975-10-01), Reighard et al.
patent: 4207187 (1980-06-01), Booth
patent: 4212739 (1980-07-01), Hilton et al.
patent: 4575422 (1986-03-01), Zimmer
patent: 4629558 (1986-12-01), Garritty
patent: 4705626 (1987-11-01), Morelli

Affiliated with

Also associated with

Rating

Filter apparatus with a spring loaded safety valve plate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter apparatus with a spring loaded safety valve plate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter apparatus with a spring loaded safety valve plate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-34263