Patents by Inventor Roy A. Behling

Roy A. Behling 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).

  • Hammerhead crane with plural shuttle trolleys, a load trolley and movable counterweight means
    Patent number: 4363411
    Abstract: A hammerhead type of crane has a structural tower with opposed structural cantilevers extending horizontally therefrom and there is a horizontal track along which a load carrying trolley may move through the tower between limits near the outer ends of the cantilevers and a second horizontal track along which a counterweight may travel at the same speed and distance but in the opposite direction and with the load trolley and counterweight passing each other as they move through the tower from one cantilever to the other. The counterweight is moved by means of a cable that has its opposite ends attached to the counterweight and which between its ends is wound about a reversible drum arranged to selectively move the counterweight in one direction or the other.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: December 14, 1982
    Assignee: Dravo Corporation
    Inventors: Gilbert Blair, Roy A. Behling, Richard Collins