Process and apparatus for sealing a plurality of filter elements

Details Process and apparatus for sealing a plurality of filter elements Process and apparatus for sealing a plurality of filter elements

1982-05-21

1983-11-08

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264258, 264262, 264267, B29C 604, B29C 500, B29D 3100

Patent

active

044141726

ABSTRACT:
The present invention relates to a process and apparatus for making sealed filter units which include a plurality of filter elements. The apparatus includes a lower mold half for supporting a filter element support and a retractable locater member. The retractable locater member includes a reduced cross-sectional notched portion which projects above the lower mold half. When retracted into the lower mold half, the notched portion in conjunction with the upper and lower mold halves forms a cavity along the outer and upper peripheral edges of the filter elements and support. A thermoplastic material is injected into this cavity to capture the filter elements to the filter element support.

REFERENCES:
patent: 3148223 (1964-09-01), Gits
patent: 3872576 (1975-03-01), Mott
patent: 3954625 (1976-05-01), Michalski
patent: 4113627 (1978-09-01), Leason
patent: 4159954 (1979-07-01), Gangemi

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