Composite insulator-producing compression mold device

Details Composite insulator-producing compression mold device Composite insulator-producing compression mold device

1996-03-08

1998-03-03

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

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

Opposed registering coacting female molds

425395, 425DIG47, B29C 4318, B29C 4338

Patent

active

057231559

ABSTRACT:
A composite insulator-producing compression mold device including a pair of molding units each having a recess for the formation of a housing of a composite insulator. At least one partition plate is fitted to a first one of the molding units near the composite insulator housing-forming recess and at a location radially outwardly from the recess. An urging mechanism is provided for urging the partition plate toward the second molding unit such that an outer end portion of the partition plate may project toward the second molding unit from a parting face of the first molding unit when the molding units are opened. When the molding units are closed, the partition plate is received within the first molding unit. Another mechanism is provided for preventing the partition plate from being detached from the first molding unit. As the molding units are to be closed, the outer end portion of the partition plate located outside the first molding unit is brought into contact with a mold-parting face of the second molding unit by the urging mechanism. Accordingly, an insulating macromolecular material fed into the recess for the formation of the housing is prevented from flowing radially outwardly between the parting faces.

REFERENCES:
patent: 4204822 (1980-05-01), Hewitt
patent: 4688752 (1987-08-01), Barteck et al.
patent: 4957676 (1990-09-01), Greenwood
patent: 5082615 (1992-01-01), Sakai
patent: 5118271 (1992-06-01), Baird et al.
patent: 5399082 (1995-03-01), Shimizu
patent: 5484564 (1996-01-01), Goto
patent: 5523038 (1996-06-01), Kunieda et al.

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