High density pleat spacing and scoring tool and filter made therewith
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United States of America Patent
Stats
-
Oct 7, 1986
Grant Date -
N/A
app pub date -
Aug 30, 1984
filing date -
Aug 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spacing and scoring tool for creating high density pleated filter media, and the media therefor is disclosed herein. A blade (14) having curvilinear portions (22, 22a) and linear portions (21, 21a) create an island pattern when scored into flat or corrugated media (16). The island are preferably located centrally upon the corrugation peaks (18) either at every peak or periodically. The resulting pattern when foled produces filter media with automatic pleat spacing and this structure can be used at very high pleat spacings beyond 10 pleats per inch. The blade (14) is solid on its contact face at the curvilinear portions for preventing island collapse when the media is folded.
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