Plastic article or earthenware shaping or treating: apparatus – Air felting type shaping means
Patent
1975-10-20
1977-09-13
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Air felting type shaping means
425308, 425315, 425338, 425371, B29J 504
Patent
active
040478653
ABSTRACT:
In manufacturing pressed boards, a flowable mixture of thermosetting resinous material and filler is blown through one or more nozzles into a converging throat formed by a pair of relatively inclined perforated conveyor bands in which the mixture is compacted into a continuous, coherent and self-supporting web by the application of heat to preset the resinous material thereof. The web is transversely cut into individually manipulable sections which are fed by a stack conveyor to a platen press, operating in step with the feeding and cutting mechanisms, for final setting of the resin.
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patent: 2975470 (1961-03-01), Snelson et al.
patent: 2997096 (1961-08-01), Morrison et al.
patent: 3144376 (1964-08-01), Plumberg et al.
patent: 3611482 (1971-10-01), Hutz
patent: 3758249 (1973-09-01), Newby
Axer Heinrich
Roth Gerd
G. Siempelkamp & Co.
Ross Karl F.
Spicer, Jr. Robert L.
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