Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or...
Patent
1985-06-28
1987-03-03
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
425556, 425565, 425437, B29C 3348, B29C 4576, B29C 4358
Patent
active
046472746
ABSTRACT:
An in-mold coating apparatus which comprises movable and fixed molds which when mated together defines a molding cavity, and an injector assembly for injecting a plasticized coating material into the molding cavity to form a coated layer on a primary molded product within the molding cavity. The movable mold has an opened position at which the complete molded product with the coated layer thereon can be removed out of the molding cavity, a first closed position at which the primary molded product can be formed and a second closed position at which a space is formed between the movable mold and the primary molded product for the formation of the coated layer. The injector assembly has a tubular rod having one end adapted to selectively close and open an injection opening, and also having an air passage defined therein for the application of a blast of compressed air into the space to urge the primary molded product against the fixed mold.
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patent: 4153231 (1979-05-01), Hayakawa et al.
patent: 4247515 (1981-01-01), Olabisi
Hoag Willard E.
Mazda Motor Corporation
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