Patents by Inventor Paul R. Kaufman

Paul R. Kaufman 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).

  • Patent number: 5353954
    Abstract: A plastic container is configured for high pressure containment of fluid. The plastic container includes a tubular body portion generally symmetric about a vertical axis, and a base portion unitary with the body portion and having a plurality of feet for supporting the container upright on a horizontal surface. In cross-section, the base of the container is defined by a first line comprising a series of curves of serially diminishing radius from the body portion through the axis to each of the feet. The series of curves having centers of curvature alternating between positions inside the container and positions outside the container.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: October 11, 1994
    Assignee: Constar Plastics, Inc.
    Inventors: Sterling L. Steward, Paul R. Kaufman, David A. Brunson
  • Patent number: 4358344
    Abstract: A method of pyrolyzing and desulfurizing coal in a transport reactor to recover volatile fuel values and hydrogen by heating particulate coal entrained in a carrier gas substantially free of oxygen to a pyrolysis temperature in a zone within three seconds.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: November 9, 1982
    Assignee: Occidental Petroleum Corporation
    Inventors: Allan Sass, Harry E. McCarthy, Paul R. Kaufman, Clement S. Finney