Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Patent
1988-11-16
1990-03-20
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
523099, 52589, 425 4R, 425150, 425434, 425435, 425817R, 428 33, 428 53, 4283188, 4283193, B29C 3340, B32B 520
Patent
active
049097180
ABSTRACT:
An insulated molded plastic structural unit includes spaced face portions, an intermediate portion and interlocking portions. The face portions each include an integrally formed stressed hard outer skin section and the intermediate portion includes an insulating core section. The interlocking portions include mateable sections along at least two edges of each unit, each mateable section including at least five alternating raised and recessed areas forming an asymmetrical pattern along the length thereof. The pattern is the same or a reverse thereof along each mateable section of the same unit and of adjacent units to which it will be joined. Particular mateable sections either extend beyond the face portions or are recessed below the face portions a substantially equal distance. Continuous molding apparatus includes a raw material supplying portion, a mixing portion, a molding portion and a control portion. The molding portion includes at least one rotatable mold assembly with at least two separable mold sections. At least one mold section includes a plurality of rotatable mold surface elements with each having a plurality of different mold surface segments.
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Chiesa Richard L.
Urban Arthur L.
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