Patents by Inventor Keith D. Grzelak

Keith D. Grzelak 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).

  • Active cooling system for cradle of portable electronic devices
    Patent number: 5704212
    Abstract: An improved cradle assembly has a base with a mounting surface configured to removably receive a portable electronic device. The cradle assembly also has a cooler supported by the base to facilitate use of the portable electronic device in warm, or harsh, thermal environments. The cooler is positioned in thermally conductive relation with a portable electronic device that is received on the mounting surface. The cooler is operable to dissipate heat from the portable electronic device. In an alternative construction, a heat generator is substituted for the cooler to provide thermal heating of the portable electronic device in order to facilitate use of the device in cold, or harsh, thermal environments.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: January 6, 1998
    Assignee: Itronix Corporation
    Inventors: William F. Erler, Timothy P. O'Hagan, Keith D. Grzelak