Patents by Inventor Terry W. Jacobson

Terry W. Jacobson 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).

  • Patent number: 4800374
    Abstract: A personnel antistatic test device includes a conductive shoe plate adapted to be stood upon by the person to be checked, a jack for receiving the plug of a wrist strap worn by the person to be checked, and circuitry for measuring effectiveness of static discharge paths through the wrist strap and through the person's footwear. Electrical circuitry is provided for measuring resistance from a touch plate, through the person's body, through the wrist strap and its lead wire. In the footwear checking mode, resistance is measured from the touch pad through the person's body, through the stockings and shoes to the shoe plate. Appropriate resistance range values are provided for the wrist strap and shoe check mode, and indicator lights are activated showing a satisfactory static discharge path, a hazard condition due to low resistance, or an unacceptable static discharge path due to high resistance.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: January 24, 1989
    Assignee: Cray Research, Inc.
    Inventor: Terry W. Jacobson