Patents by Inventor Michael K. Hormann

Michael K. Hormann 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).

  • Process for monitoring a driven, movable door or the like
    Patent number: 4625291
    Abstract: A process for controlling the movement of a motorized door is disclosed. Also, a control apparatus that has a close loop feedback system for use in controlling a motorized door is disclosed. The invention provides for improved safety by incorporating improved obstacle sensing thresholds through the use of a comparator system.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: November 25, 1986
    Assignee: Hormann KG
    Inventor: Michael K. Hormann