Filter assembly having a filter element and a sealing device

Details Filter assembly having a filter element and a sealing device Filter assembly having a filter element and a sealing device

1992-12-11

1995-03-28

Nessler, Cynthia L.

Liquid purification or separation

Plural distinct separators

Filters

210450, 210451, 2105101, 55523, 277 26, B01D 3920, C04B 4150

Patent

active

054014069

ABSTRACT:
The present invention provides a filter sealing device for a filter element. The filter element includes an end portion defining an opening. The sealing device includes a body having a first section attached to a second section. The first section is positionable within the opening in the filter element with the second section facing an open end portion of the filter element. The first section has a larger coefficient of thermal expansion than the end portion of the filter element so that an increase in temperature results in the first section of the body expanding at a greater rate than the end portion of the filter element. These differing rates of expansion cause a compressive force to be exerted between the first section of the body and the end portion of the filter element.

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