Patents by Inventor William N. York

William N. York 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: 7493684
    Abstract: Aircraft loading apparatus includes a frame removably attachable to an aircraft (e.g., a helicopter). The frame is constructed for assembly and disassembly in a transitional position and includes a pair of raising and lowering mechanisms. The mechanisms include a pair of belts with free ends attachable to form a sling and connected for simultaneous extension or retraction of equal lengths of each belt. In operation, the frame is attached to the aircraft adjacent an area at which an article (e.g. an auxiliary fuel tank) is to be connected. The article is positioned under the frame and the belts are extended to form a sling around the article. The mechanisms are activated to simultaneously retract equal lengths of each belt to raise the article into a connecting position, the article is connected, and the frame is disassembled into a removable configuration and removed from the aircraft.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: February 24, 2009
    Assignee: Robertson Aviation LLC
    Inventors: Robert Callahan, William N. York, Daniel Guy Drummond
  • Patent number: 7104503
    Abstract: Aircraft loading apparatus includes a frame removably attachable to an aircraft (e.g. a helicopter). The frame is constructed for assembly and disassembly in a transitional position and includes a pair of raising and lowering mechanisms. The mechanisms include a pair of belts with free ends attachable to form a sling and connected for simultaneous extension or retraction of equal lengths of each belt. In operation, the frame is attached to the aircraft adjacent an area at which an article (e.g. an auxiliary fuel tank) is to be connected. The article is positioned under the frame and the belts are extended to form a sling around the article. The mechanisms are activated to simultaneously retract equal lengths of each belt to raise the article into a connecting position, the article is connected, and the frame is disassembled into a removable configuration and removed from the aircraft.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: September 12, 2006
    Inventors: Robert Callahan, William N. York, Daniel Guy Drummond