Patents by Inventor John McKenzie Blundell

John McKenzie Blundell 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: 6126399
    Abstract: A featherable propeller assembly for fitment to a drive shaft has a blade carrying assembly which is carried by a hub assembly. The blade carrying assembly is rotatable relative to the hub assembly within relative limits of rotation. Blades are pivotally mounted on the blade carrying assembly. The relative rotation of the hub assembly and blade carrying assembly provides for different positions of respective stop abutments, thus allowing the blades to assume each of the following conditions: (a) a forward drive condition under a forward drive rotation of the shaft; (b) a feathering condition when not under drive from the shaft where the blades are substantially free to move into an orientation which is aligned with the flow of water past the propeller; and (c) a reverse driving condition under a reverse drive rotation of the shaft.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: October 3, 2000
    Inventors: Bryan Allen Bartley, John McKenzie Blundell