Patents by Inventor Andrew J. Phelan

Andrew J. Phelan 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).

  • System and method for cooling using counter-rotating fans
    Patent number: 8179071
    Abstract: A system includes two counter-rotating electric fans. A cooling controller is configured to run the fans at first and second operating points responsive to a measured value of a parameter. The first and second operating points correspond to first and second different required volumes per unit time of air flow. Rotational speeds of the fans at the first and second operating points define first and second different rotational speed offsets.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: May 15, 2012
    Assignee: Hewlett Packard Development Company, L.P.
    Inventors: Andrew J. Phelan, Erik R. Nielsen
  • System and Method for Cooling Using Counter-Rotating Fans
    Publication number: 20110095715
    Abstract: A system includes two counter-rotating electric fans. A cooling controller is configured to run the fans at first and second operating points responsive to a measured value of a parameter. The first and second operating points correspond to first and second different required volumes per unit time of air flow. Rotational speeds of the fans at the first and second operating points define first and second different rotational speed offsets.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 28, 2011
    Inventors: Andrew J. Phelan, Erik R. Nielsen