Method of producing a filter insert

Details Method of producing a filter insert Method of producing a filter insert

1994-08-29

1997-04-22

Yoder, Michele K.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156227, 156270, 156271, 156474, 156524, 156526, 156578, 118315, B32B 3104, B32B 3118

Patent

active

056225830

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.

REFERENCES:
patent: 2653888 (1953-09-01), Hyman
patent: 3532582 (1970-10-01), Franke
patent: 3535190 (1970-10-01), Loomer et al.
patent: 4288278 (1981-09-01), Akao
patent: 4419241 (1983-12-01), Hoffman
patent: 4764234 (1988-08-01), Smits et al.
patent: 4940500 (1990-07-01), Tadokoro et al.

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