Patents by Inventor Steve A. Richards

Steve A. Richards 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: 7249465
    Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein temperature trending of at least one cryocooler component or the refrigeration load is monitored and used to calculate a service time.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: July 31, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: Bayram Arman, James J. Volk, Steve A. Richards, Mushtaq M. Ahmed, Arun Acharya
  • Patent number: 7024867
    Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: April 11, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Bayram Arman, James J. Volk, Steve A. Richards, M. Mushtaq Ahmed, Arun Acharya