Patents by Inventor Thomas Ingve

Thomas Ingve 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).

  • Multi-line electronic media barrier
    Patent number: 4951873
    Abstract: A multi-line electronic media barrier or safety system for preventing liquid contamination of air lines, including a capacitance proximity sensor for detecting a foreign undesirable medium such as paint in an air line. When foreign media is detected, a main air valve is closed which in turn closes valves connected in the air lines, thereby blocking passage of air or liquid and protecting pneumatic control apparatus. The media barrier is especially designed for use with automated or robotic paint spray devices utilized in industry.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: August 28, 1990
    Assignee: Graco Robotics, Inc.
    Inventors: John Ashworth, Thomas Ingve