Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – And means to apply stress to preform and uniting in stressed...
Patent
1989-10-24
1990-11-20
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
And means to apply stress to preform and uniting in stressed...
249 93, 249 95, 264 468, 425117, 425125, 425388, 425DIG48, B29C 5110, B29C 6720
Patent
active
049715410
ABSTRACT:
The present invention relates to an apparatus for the production of back-foamed products. The apparatus broadly consists of two mold halves, a stretching frame attached to one of the mold halves, and a pulsator device for applying pulsations to the edge region of the mold cavity.
REFERENCES:
patent: 2666951 (1954-01-01), Grove et al.
patent: 3943215 (1976-03-01), Grune et al.
patent: 4137030 (1979-01-01), Sanson
patent: 4239472 (1980-12-01), Atkinson et al.
patent: 4552522 (1985-11-01), Van Melle
Mollmann Gunter
Onnenberg Volker
Bayer Aktiengesellschaft
Fritsche-Mollmann GmbH
Gil Joseph C.
Nguyen Khanh P.
Woo Jay H.
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