Patents by Inventor Morris F. Marx, III

Morris F. Marx, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods for controlling vinyl plastic extrudate
    Patent number: 4500481
    Abstract: In order to control the fusion of a polyvinyl chloride plastic material which is being moved along a screw of an extruder from a feed section (36) through a compression section (37) to a metering section (39) and crosshead (26), the melt pressure is measured in the compression section. The melt pressure, which is indicative of the fusion qualities of the plastic material, is used to control the temperature of the plastic material in the feed section to cause it to be substantially homogenous at the crosshead.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: February 19, 1985
    Assignee: AT&T Technologies, Inc.
    Inventor: Morris F. Marx, III