Patents by Inventor Thomas Kallay

Thomas Kallay 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).

  • Limit switch replacement system and universal bracket
    Patent number: 5027853
    Abstract: Apparatus which monitors the extent to which a mechanical valve (2) is opened which employs a rotary position transducer (5). The rotary position transducer (4) provides a signal representative of valve (2) position to a signal processor (10, 140 for analysis. The signal processor (10, 14), in turn, activates various announciator lights (122, 124) which provide a visual indication of valve (2) position and sends signals to other apparatus (21) associated with the valve (2). Also provided is a mounting (30, 32, 44, 102, 104) for apparatus which monitors the extent to which a mechanical valve (2) is opened.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: July 2, 1991
    Assignee: Electronic Technology Systems, Inc.
    Inventors: Ronald Walko, Thomas Kallay, Kevin Kallay, Robert Holden, Andrew Gavrilos