Filter assembly having a filter element and a sealing device
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United States of America Patent
Stats
-
Mar 28, 1995
Grant Date -
N/A
app pub date -
Dec 11, 1992
filing date -
Dec 11, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
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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