Patents by Inventor Benjamin F. Kalina

Benjamin F. Kalina 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: 6079768
    Abstract: An escape door system is described which is useful on a school bus (e.g. as a rear escape door). The system includes a hinged door which is releasably attached along one side edge to a wall of the bus. A latch which is accessible on the outside of the bus enables the door to be separated or removed from the wall of the bus in an emergency.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: June 27, 2000
    Inventor: Benjamin F. Kalina
  • Patent number: 5011215
    Abstract: An escape door system for a bus is described which can be easily and quickly opened to enable passengers to exit the bus after an accident. The door can be used as a normal exit door or it may be completely detached and separated from the bus. Preferably the door is installed in the rear wall of the bus. A window adjacent the door can also be pivoted out of the way after the door has been separated from the wall to facilitate ingress and egress of people.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: April 30, 1991
    Inventor: Benjamin F. Kalina