Method of extending contour gaskets

Details Method of extending contour gaskets Method of extending contour gaskets

1992-03-04

1992-08-11

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264304, 264310, 264313, 264DIG60, B28B 102, B29C 4118

Patent

active

051376792

ABSTRACT:
A method of molding utilizes an apparatus (10) for molding a thin-wall plastic shell which includes a powder box (12) and a mold box (14). The powder box (12) is positioned to an operative position wherein an opening (18) in the powder box (12) is brought in proximity to the mold surface (20) of the mold. A bellows member (34) having a gasket (42) about the end thereof is extended from the opening (18) to perfect a sealed passageway between the opening (18) and the periphery (22) of the mold surface (20).

REFERENCES:
patent: 4683098 (1987-07-01), Belleville et al.
patent: 4716003 (1987-12-01), Gaudreau
patent: 4790510 (1988-12-01), Takamatsu et al.
patent: 4938906 (1990-07-01), Brault
patent: 4946638 (1990-08-01), Takamatsu et al.
patent: 5093066 (1992-03-01), Batchelder et al.
patent: 5104596 (1992-04-01), Kargarzadeh et al.

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