Patents by Inventor Joseph J. Krsnak

Joseph J. Krsnak 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: 6318024
    Abstract: A system for servicing an overhead door having a spring counter balance mechanism, an operator and a directional control system. The servicing system includes a counter, information cards, and contact cards. The counter includes a counting device and a numeric display. The counting device records the number of full cycles of the springs used in the counter balance mechanism measured from the fully closed position of the door. The numeric display shows this number of full cycles. An inspector of the door compares this number to the cycle failure specification for the springs used in the counter balance mechanism listed on the information cards. If replacement or attention is required, the inspector uses the contact cards to inform the appropriate parties that the door is not functioning properly or that the springs require attention.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: November 20, 2001
    Assignee: Fallon Safety Systems, Inc.
    Inventors: Joseph J. Krsnak, James F. Lee