Patents by Inventor Francis F. Hummel

Francis F. Hummel 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: 3993204
    Abstract: The present invention comprises an extensible boom assembly having an anchored end and a distal end. Conveyor means are mounted on the frame assembly for transporting items from the anchored end to the distal end. Takeup means are associated with the conveyor for taking up the slack in the conveyor whenever the frame assembly is retracted and for feeding out the slack in the conveyor whenever the frame assembly is extended. An unloading device is mounted adjacent the distal end of the frame assembly.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: November 23, 1976
    Inventor: Francis F. Hummel