Plastic article or earthenware shaping or treating: apparatus – With upstream screen or perforated plate for straining,...
Patent
1995-11-20
1998-04-21
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With upstream screen or perforated plate for straining,...
219421, 219438, 264 78, 264211, 4253782, 432209, B29C 4778
Patent
active
057415323
ABSTRACT:
An apparatus for melting particulate polymeric material includes a melting grid and a molten polymer reservoir beneath the grid. The apparatus has a lateral cross-sectional contour defined by walls. Further included is a distribution device having upper and lower surfaces and adapted to the contour of the molten polymer reservoir, which device is disposed in the molten polymer reservoir in proximity to the grid. The device has an internal reservoir formed between the upper and lower surfaces; a perimetrical surface joining the upper and lower surfaces and providing the device with height; at least two fluid distribution pores, each having one end in communication with the internal reservoir and another end disposed in the circumferential surface; and an injection tube providing fluid flow communication between the internal reservoir and an external supply of fluid.
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Conard Wayne L.
Lilly Robert L.
Parks Steve C.
Rogers Charles H.
Shoaf Zachary G.
BASF Corporation
Leyson Joseph
Woo Jay H.
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