Method of producing a filter insert
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United States of America Patent
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-
Apr 22, 1997
Grant Date -
N/A
app pub date -
Aug 29, 1994
filing date -
Aug 27, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter insert and a method for producing the same in which the filter insert has an accordion-folded filter medium. In a first operating step, folded edges are impressed on the filter medium. Subsequently, by glue application devices which are provided with glue application nozzles, at least two glue beads are applied to the surface of the filter medium and the folding is carried out subsequently. At least one of the glue application devices is movable transversely to the transport direction of the filter medium.
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