Apparatus for maintaining uniform wall thickness in hollow molde

Details Apparatus for maintaining uniform wall thickness in hollow molde Apparatus for maintaining uniform wall thickness in hollow molde

1984-03-08

1985-06-04

Hoag, Willard E.

Static molds

Container-type molding device

Plural article forming mold, or molds with community feature

249135, 425542, 425577, B29C 100, B29F 1022

Patent

active

045209910

ABSTRACT:
Apparatus for maintaining a diametric uniformity of wall thickness in a hollow molded plastic article by maintaining axial mold alignment over the period of use thereof. Guide blocks are mounted in circumferentially spaced relationship on one of the telescopic mold elements and pockets are provided with wear plates in the opposite element to receive the guide blocks axially therein and to provide a centering maintenance function which overrides the alignment function of other portions of the mold; e.g., tapered telescopic striking surfaces which are internal of the guide and wear block arrangements.

REFERENCES:
patent: 3843088 (1974-10-01), McLoughlin et al.
patent: 4165959 (1979-08-01), Dechavanne
patent: 4467998 (1984-08-01), Sorensen

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