Process for sealing end caps to filter cartridges

Details Process for sealing end caps to filter cartridges Process for sealing end caps to filter cartridges

1977-09-30

1978-10-17

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156357, 156578, 427284, 118238, 118241, B29C 2700, B65C 1104

Patent

active

041207114

ABSTRACT:
A process for sealing molded end caps to filter tubes comprises providing a holder for an end cap and a means for automatically dispensing a predetermined quantity of a hot, molten adhesive into the end cap. After the adhesive is added to the end cap, a filter cartridge is inserted into the end cap under slight pressure to embed the ends of the filter in the adhesive. Subsequent cooling of the adhesive results in an effective seal.

REFERENCES:
patent: 2976200 (1961-03-01), Stover
patent: 3164506 (1965-01-01), Lake
patent: 3170826 (1965-02-01), Norton et al.
patent: 3354012 (1967-11-01), Forman et al.

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