Segment with heating and cooling device and mold using the segme

Details Segment with heating and cooling device and mold using the segme Segment with heating and cooling device and mold using the segme

1995-06-06

1997-03-04

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

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

Female mold type means

249 81, 4251291, 425552, 425573, 4254519, B29C 4573

Patent

active

056077025

ABSTRACT:
A segment used for producing a composite insulator having a core member and a housing member arranged around the core member and constructed by a trunk portion and a shed portion is disclosed. The segment has a pair of segment molds detachably connected at a partition plane and a heating and cooling passage arranged in the segment molds respectively. The segment molds have a through-hole through which the core member is arranged, an upper plane forming portion arranged at its one end surface for defining an upper plane of the shed portion, and a lower plane forming portion arranged at its other end surface for defining a lower plane of the shed portion. A heating or cooling medium is passed through the heating and cooling passage. Moreover, a mold is constructed by integrating a plurality of segments with the heating and cooling passage mentioned above.

REFERENCES:
patent: 399139 (1889-03-01), Fenner et al.
patent: 2991506 (1961-07-01), Crandall
patent: 4703912 (1987-11-01), Aoki
patent: 4884961 (1989-12-01), Iizuka et al.
patent: 5484564 (1996-01-01), Goto
patent: 5498387 (1996-03-01), Carter et al.

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