Patents by Inventor Jason D. Tunnell

Jason D. Tunnell 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 reducing inrush current in a blade server
    Patent number: 7093048
    Abstract: A system and method for reducing inrush current in an information handling system includes charging a pre-charge circuit with an elongated pin. The information handling system includes a midplane with at least one power source connector and multiple blade connectors able to connect to blade servers. Each blade connector has an elongated pin for supplying power to a blade server. Each blade server has a power connector for receiving the elongated pin and an integrated pre-charge circuit including a resistor and capacitor.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: August 15, 2006
    Assignee: Dell Products L.P.
    Inventors: Jil M. Bobbitt, Zhan Mei, Dung T. Nguyen, Jason D. Tunnell
  • System and method for reducing inrush current in a blade server
    Publication number: 20040201368
    Abstract: A system and method for reducing inrush current in an information handling system includes charging a pre-charge circuit with an elongated pin. The information handling system includes a midplane with at least one power source connector and multiple blade connectors able to connect to blade servers. Each blade connector has an elongated pin for supplying power to a blade server. Each blade server has a power connector for receiving the elongated pin and an integrated pre-charge circuit including a resistor and capacitor.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Applicant: Dell Products L.P.
    Inventors: Jil M. Bobbitt, Zhan Mei, Dung T. Nguyen, Jason D. Tunnell
  • Series fan speed control system
    Patent number: 6396688
    Abstract: A redundant fan system includes an in-series configuration of adjustable speed fans. A speed controller coupled to the fan system includes a first fan operated at a constant operating speed and a second fan operated at an adjusted operating speed to maintain a speed differential between the first and second fan speeds. A sensing device is connected to the first and second fans and to the speed controller for maintaining the speed differential constant.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: May 28, 2002
    Assignee: Dell Products L.P.
    Inventors: Stephen J. Davies, Jil M. Bobbitt, Jason D. Tunnell