Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se
Patent
1993-12-27
1996-01-16
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
264254, 264255, 264275, 264294, 264308, B29C 4536, B29C 4510, B29C 3312
Patent
active
054845645
ABSTRACT:
A method for manufacturing a long size non-ceramic insulator is provided. The method includes the first step, in which a rubber housing having a plurality of trunks and skirts is formed around a long size core while molds are tightly assembled, and a second step, in which the long size core is moved a length corresponding to the rubber housing while the molds are separated. Further according to a third step, the long size core is set in a position in the molds as the distal portion of the formed rubber housing is clamped by positioning jigs disposed in the molds while the molds are tightly assembled. While the rubber housing is clamped, the next continuous rubber housing is formed around the long size core, which will be connected to the last formed rubber housing.
REFERENCES:
patent: 4372907 (1983-02-01), Herold
patent: 4373113 (1983-02-01), Winkler
patent: 4466692 (1984-08-01), Sonoda
patent: 4476081 (1984-10-01), Kaczerginski
patent: 4620959 (1986-11-01), Goto et al.
patent: 5223190 (1993-06-01), Vallauri
Kubovcik Ronald J.
NGK Insulators Ltd.
Ortiz Angela
Silbaugh Jan H.
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