Extrusion head with high volume reservoir

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United States of America Patent

PATENT NO 8936460
SERIAL NO

12887084

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Abstract

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An extrusion head for an extrusion apparatus can include a spider for supporting a central mandrel. A high volume reservoir can be mounted to the spider on a downstream side of the spider. The central mandrel can extend longitudinally into the high volume reservoir. The high volume reservoir can have an axially straight annular conduit with a length L and an outer diameter OD. The annular conduit can have an L to OD ratio of about 1:1. A set of dies can be mounted downstream of the high volume reservoir, whereby the high volume reservoir reduces pressure and promotes homogenization of molten polymer flowing therethrough, before reaching the set of dies.

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Patent Owner(s)

Patent OwnerAddress
AMERICAN MAPLAN CORPORATIONP O BOX 832 823 S BYPASS MCPHERSON KS 67460

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eisenbarth, Bradley M McPherson, US 2 2
Nixon, James W McPherson, US 6 33
Wallen, John Michael Lindsborg, US 4 7

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