Patents by Inventor Andrew D. Dodds

Andrew D. Dodds 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: 4027889
    Abstract: A tracked, stair-climbing carrier for carrying loads up and down stairs and across floors. The carrier includes a frame mounting a pair of parallel endless tracks at its sides for moving the frame forwardly and rearwardly along a floor and up and down stairs. An upper, load-receiving deck is slideably carried by the frame and is movable forwardly and rearwardly to adjust the center of gravity of the carrier and load and permits the rearward end of the deck to rest upon the floor when the frame has been tilted to an acute angle with the floor.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: June 7, 1977
    Assignee: Kando Incorporated
    Inventors: Gary F. Krofchalk, Andrew D. Dodds