Apparatus for fixing cap on end of filter element

Details Apparatus for fixing cap on end of filter element Apparatus for fixing cap on end of filter element

1987-02-04

1989-01-03

Fisher, Richard V.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work cooling means

156499, B32B 3104

Patent

active

047955244

ABSTRACT:
An apparatus for fixing a cap (8) coated with a hot-melt adhesive on an end surface of a filter element (6), comprising a pair of vertical heating units (18, 19) installed in position (A) and an adjacent pair of vertical cooling units (20, 21) installed in position (B). The heating units (18, 19) comprises a pair of heaters (25, 29), each displaceable close to and away from the other so as to nip and release a pot assembly (9) accommodating the filter element (6) to be treated therebetween. The cooling units (20, 21) comprises a pair of coolers (30, 31) subjected to a similar movement. First, the pot assembly (9) occupies position (A) and is subjected to a heat treatment by the nip of the heaters (25, 29), causing melting of the hot-melt adhesive of the cap (8), and then transported to position (B) and subjected to a cooling treatment by the nip of the coolers (30, 31), causing solidification of the molten adhesive.

REFERENCES:
patent: 3367261 (1968-02-01), Kashiwagi
patent: 3449183 (1969-06-01), Zelnick
patent: 3880695 (1975-04-01), Standley et al.
patent: 3938931 (1976-02-01), Emmel
patent: 3964958 (1976-06-01), Johnston
patent: 4380484 (1983-04-01), Repik et al.
patent: 4443288 (1984-04-01), Sawada et al.
patent: 4502906 (1985-03-01), Young et al.
patent: 4556445 (1985-12-01), McCormick

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