Apparatus for simultaneously molding portions of separable artic

Details Apparatus for simultaneously molding portions of separable artic Apparatus for simultaneously molding portions of separable artic

1993-06-02

1994-04-19

Bushey, Charles S.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

By fluid pressure actuated flexible diaphragm

156245, 156382, 264314, 4254051, 4254519, B29C 3300

Patent

active

053040570

ABSTRACT:
An apparatus for simultaneously molding separate portions of an article which may be subsequently assembled to form the complete separable article. The apparatus includes separate mold portions which, when assembled, define a molding cavity in which each of the mold portions has an outwardly extending flange. The mold portions are fastened together such that the flanges are spaced apart a distance at least twice as great as the thickness of the article to be molded. The mold portions extend along a longitudinal axis and each defines a molding surface which extends around the axis less than 360.degree.. When the mold portions are assembled, the molding surfaces extend completely around the longitudinal axis. The mold also includes silicone bead elements extending along the longitudinal axis in the space between the spaced apart flanges. The bead elements also define molding surfaces which bear against a portion of the molding material and urge it into contact with the surfaces of the flanges to form flanges on the molded portions of the article.

REFERENCES:
patent: 1616958 (1927-02-01), Huetter
patent: 2722962 (1955-11-01), Hampshire et al.
patent: 3431331 (1969-03-01), Pincus et al.
patent: 3814653 (1974-06-01), Heier
patent: 4310372 (1982-01-01), Janssen et al.
patent: 4483670 (1984-11-01), Yamamoto et al.
patent: 4681651 (1987-07-01), Brozovic et al.
patent: 4693678 (1987-09-01), Von Volkli
patent: 5015168 (1991-05-01), Boime et al.
patent: 5256366 (1993-10-01), Wejrock et al.

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