Patents by Inventor A. Tobey Yu

A. Tobey Yu 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: 4065002
    Abstract: A pocket dock ship loader is disclosed to include at least one pocket to accommodate dock site storage of bulk material, a first conveyor such as a tripper conveyor for transporting bulk material from an off-dock source to the pocket, a second conveyor such as a shuttle conveyor for transporting the bulk material from the pocket to a drop point above the cargo hatch of a vessel and means for regulating the flow of bulk material from the pocket to the shuttle conveyor, wherein the shuttle conveyor is extensible and retractable between a stowed position and an operating position. The ship loader also incorporates a purge conveyor structure for removing material from the material pockets in anticipation of the loading of different materials on a next subsequent vessel.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: December 27, 1977
    Assignee: Orba Corporation
    Inventors: James Thomas Cunningham, Frederick Orren Snow, III, Joseph Richard April, A. Tobey Yu