Patents by Inventor Richard S. Chu

Richard S. Chu 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).

  • Method for preparing thermosetting resins
    Patent number: 4389357
    Abstract: Method and apparatus for preparing a thermosetting resin for further processing. The resin is poured from a batch reactor onto a continuously moving conveyor belt to form a layer of about 2 to 4 inches thick. After the batch is received on the conveyor, the conveyor is stopped for several hours to permit the batch to cool and solidify. Thereafter, the conveyor is restarted and a chopper at the downstream end of the conveyor chops the solidified batch into small chunks and flakes. The conveyor has a rigid trough support under the upstream end of the conveyor's upper run and roller assemblies holding the conveyor in a trough configuration at its downstream end.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: June 21, 1983
    Assignee: Ashland Oil, Inc.
    Inventors: Richard S. Chu, Maher L. Mansour