Patents by Inventor David A. Kodl

David A. Kodl 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).

  • Purge enclosure for electrical equipment in hazardous location
    Patent number: 4963693
    Abstract: A protective or purge enclosure provides a positive atmosphere around an operating device such as a hand-held computer or calculator contained therein. The protective enclosure has sufficient flexibility, even though providing a positive, sealed atmosphere, to enable the user to operate the functional features of the device sealed within the enclosure, and the material forming the device is sufficiently transparent to enable the user to view the functional features of the device for operation. A visible indicator provided on the enclosure enables the user to determine if the enclosure is maintaining the positive atmosphere sealed therein.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: October 16, 1990
    Assignee: Ampex Corporation
    Inventor: David A. Kodl