Dual flow divider with diverter valve

Details Dual flow divider with diverter valve Dual flow divider with diverter valve

1995-04-10

1997-04-01

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

264 407, 26417316, 26421123, 4251311, 425145, 4253824, 425463, B29C 4710, B29C 4726

Patent

active

056163509

ABSTRACT:
The present invention provides a dual flow divider for use on an extruder. The flow divider is configured to separate the melt stream received from the extruder at a central entry into two flow channels, the respective channels being formed as nearly to identical (mirror image) as is practically possible. The relative flow in the respective channels can be varied by rotating a diverter valve that extends to a position adjacent the central entry of the flow divider, i.e., where the flow begins to divide. The flow channels and control end of the diverter valve are specially configured to avoid any shape or surface conditions that would impose heat-generating restrictions to material flow, and/or allow areas of stagnation in the flow stream. More specifically, the flow channels are machined to provide smooth, streamlined transitions at all points along the flow path. The surfaces of the flow channels which intersect with the diverter valve do so at a sharp edge; this geometry blends the surfaces of the channels and valve while also serving as a "wiper" when the valve is rotated.

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patent: 5507631 (1996-04-01), Hodan

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