Blow molding method and mold with means to position an insert

Details Blow molding method and mold with means to position an insert Blow molding method and mold with means to position an insert

1985-12-23

1988-03-29

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

249 97, 425113, 425116, 425121, 425522, 425532, B29C 4948, B29C 4904

Patent

active

047342447

ABSTRACT:
Mold and method for molding a plastic headrest core member which has an insert partially embedded therein. The mold comprises two halves one of which is integrally formed at its shaped inner surface with a projection which is constructed and arranged to contact an end of the insert to suppress undesirable inward movement of the same during cooling of the molded headrest core member in the closed mold.

REFERENCES:
patent: 2372917 (1945-04-01), Tuttle
patent: 3162707 (1964-12-01), Scott et al.
patent: 3275726 (1966-09-01), Rudolph
patent: 3328498 (1967-06-01), Cheney
patent: 3394209 (1968-07-01), Cheney
patent: 3438085 (1969-04-01), Larkin
patent: 3632263 (1972-01-01), Blanchard
patent: 4176153 (1979-11-01), Weiler et al.

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