Filter system with environmentally friendly filter cartridge
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United States of America Patent
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-
Dec 30, 1997
Grant Date -
N/A
app pub date -
Dec 20, 1995
filing date -
Dec 20, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter system using a filter cartridge adapted for disposal in an environmentally acceptable manner. The filter cartridge has no metal parts, and thus avoids the use of a metal center tube, or a center tube of any configuration. The housing itself carries a permanent center tube. A sealing arrangement formed between the filter cartridge and the housing provides a radial seal isolating the outer periphery of the filter cartridge from the remainder thereof. Filter and caps are in the lower pressure downstream zone, and thus any axial forces imposed on the filter place the filter media in tension to avoid the imposition of crushing loads on the unsupported filter.
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