Patents Assigned to Hydroplanes, Inc.
  • Patent number: 5577321
    Abstract: A method of fabricating propellers including a number of spiral segments of a hub each having a corresponding blade portion are integrally formed by press forging. These spiral segments are then electron beam welded together to form a propeller. To ensure maximum weld strength, spiral segments are provided, which results in a longer weld seam. In one embodiment, the shaft is friction welded to the front of the propeller, a stud is welded to a rear end of the propeller, and the stud is machined to form a hydrodynamic end cap for the propeller.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: November 26, 1996
    Assignee: Hydroplanes, Inc.
    Inventors: Rodney L. Brown, Lance P. Morris