Pour head seal assembly for a mold for forming composite article

Details Pour head seal assembly for a mold for forming composite article Pour head seal assembly for a mold for forming composite article

1991-02-25

1992-02-04

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

249 91, 249 96, 264 464, 4251291, 425571, 425DIG47, B29C 3910, B29C 3924

Patent

active

050855689

ABSTRACT:
A pour head seal assembly for a mold including a mold cavity part and a lid, with a film layer against the inner surface of the lid and a preformed shell against the inner surface of the mold cavity part. The pour head seal assembly may be operatively mounted on either the lid or the mold cavity part, including a nozzle mounted through an opening formed in the selected element, with either the film layer or the preformed shell having an opening formed therein for mounting around the nozzle. A clamp plate collar is mounted on the inner end of the nozzle, adapted to clamp either the film layer or the preformed shell against an O-ring seal mounted on the adjacent inner lid or mold cavity surface to eliminate foam leakage around the nozzle.

REFERENCES:
patent: 3083408 (1963-04-01), Bichl
patent: 4030267 (1977-06-01), Arnaud
patent: 4033710 (1977-07-01), Hanning
patent: 4743188 (1988-05-01), Gray et al.
patent: 4781554 (1988-11-01), Hendry
patent: 4873032 (1989-10-01), Kohlhase

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