Patents by Inventor Clifford E. Lucas

Clifford E. Lucas 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: 7069733
    Abstract: Gas compression system comprising a driver; a refrigerant compressor driven by the driver and having an inlet and an outlet; a relief pressure safety valve having an inlet in flow communication with the outlet of the compressor, an outlet, and a set point; and a recycle pressure safety valve having an inlet in flow communication with the outlet of the compressor, an outlet in flow communication with the inlet of the compressor, and a set point that is lower than the set point of the relief pressure safety valve.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: July 4, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Clifford E. Lucas, Philip A. Brochu, William Carl Rooney