HELICAL STRAPPING METHOD FOR HIGH TEMP PLEATED FILTERS
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United States of America Patent
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Issued Date -
Oct 20, 2011
app pub date -
Apr 20, 2010
filing date -
Apr 20, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filter cartridge that includes a filter media. The media is pleated and the pleats are arranged into a tube about an axis with a first pleat proximate a last pleat. The filter cartridge includes a strap that has first and second end portions and that extends at least one revolution around the pleated media tube in a helix such that the first and second end portions of the strap are axially displaced from each other. The first and last pleats of the media are attached to each other and the first and second end portions of the strap are attached to the media. The filter cartridge may be made by an associated method. In one specific example, a stitching attaches the strap to the media.
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