Patents by Inventor Christopher N. Rijken

Christopher N. Rijken 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).

  • Insulating aperture in printed circuit boards
    Patent number: 8335077
    Abstract: A system contains a temperature sensitive device and a printed circuit board. The temperature sensitive device is coupled to the printed circuit board. An aperture is cut out of the printed circuit board between the temperature sensitive device and a heat generating device to act as an insulator for the temperature sensitive device.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: December 18, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher N. Rijken, Mark D. Tupa, Michael R. Durham
  • Insulating Aperture In Printed Circuit Boards
    Publication number: 20100290183
    Abstract: A system contains a temperature sensitive device and a printed circuit board. The temperature sensitive device is coupled to the printed circuit board. An aperture is cut out of the printed circuit board between the temperature sensitive device and a heat generating device to act as an insulator for the temperature sensitive device.
    Type: Application
    Filed: January 31, 2008
    Publication date: November 18, 2010
    Inventors: Christopher N. Rijken, Mark D. Tupa, Michael R. Durham
  • Apparatus for autonomous activation of system/chassis cooling fan
    Patent number: 6856139
    Abstract: An electronic system has at least two fans such as a first fan and a second fan. The first fan is controlled (e.g., on/off, speed) in response a system parameter (e.g., temperature, system operational state). Preferably, the second fan is controlled dependent on the operation of the first fan. The electronic system may be a computer system. In this case, the first fan preferably is a CPU fan and the second fan is a chassis fan.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: February 15, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher N. Rijken, Mark D. Tupa
  • Apparatus for autonomous activation of system/chassis cooling fan
    Publication number: 20030218465
    Abstract: An electronic system has at least two fans such as a first fan and a second fan. The first fan is controlled (e.g., on/off, speed) in response a system parameter (e.g., temperature, system operational state). Preferably, the second fan is controlled dependent on the operation of the first fan. The electronic system may be a computer system. In this case, the first fan preferably is a CPU fan and the second fan is a chassis fan.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Applicant: Compaq Information Technologies Group, L.P.
    Inventors: Christopher N. Rijken, Mark D. Tupa