Patents by Inventor Kim E. Bowen

Kim E. Bowen 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).

  • Spraycast method and article
    Patent number: 6296043
    Abstract: Spraycasting method involves directing an atomized metal or alloy spray at a collector disposed in a spray chamber and controlling temperature of the spray in flight in the spray chamber and of the atomized metal or alloy as it is deposited on the collector by a spray chamber pressure control technique that involves in-situ evacuation of the spray chamber during spray deposition to a maintain spray chamber gas partial pressure less than about 400 torr. Such low spray chamber gas partial pressure provides a higher temperature of the atomized spray in flight in the spray chamber and of the sprayed material as it is deposited on a collector in the spray chamber effective to reduce deposit porosity, reduce grain layering or banding, and provide a uniform grain through the thickness of the deposit.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: October 2, 2001
    Assignee: Howmet Research Corporation
    Inventors: Kim E. Bowen, Douglas S. Potter, David A. Cook, David P. Ingersoll, Jack W. van Heest, Ranes P. Dalal
  • Method of enhancing bond joint structural integrity of spray cast article
    Patent number: 5318217
    Abstract: In a method of making a load-bearing article by spray casting a molten metal onto a metal substrate, the substrate surface receiving the spray cast deposit is treated by vacuum cleaning, boronizing and/or knurling to enhance the structural integrity of the diffusion bond joint subsequently formed between the spray cast deposit and the substrate in sustaining a load across the joint without premature joint failure.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: June 7, 1994
    Assignee: Howmet Corporation
    Inventors: Jonathan S. Stinson, Kim E. Bowen
  • Multi-alloy turbine rotor disk
    Patent number: 4900635
    Abstract: The disclosure relates to a turbine disk and a method of making the turbine disk comprising the steps of rotating a mold, adding a first powdered metal to the rotating mold at a first rate, reducing the rate of addition of the first metal to a second rate, and adding a second powdered metal to the mold at a third rate substantially equal to the difference between the first and second rates.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: February 13, 1990
    Assignee: Williams International Corporation
    Inventors: Kim E. Bowen, Steven M. Foster, Said Izadi
  • Method of making a multi-alloy turbine rotor disk
    Patent number: 4851190
    Abstract: The disclosure relates to a turbine disk and a method of making the turbine disk comprising the steps of rotating a mold, adding a first powdered metal to the rotating mold at a first rate, reducing the rate of addition of the first metal to a second rate, and adding a second powdered metal to the mold at a third rate substantially equal to the difference between the first and second rates.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: July 25, 1989
    Assignee: Williams International Corporation
    Inventors: Kim E. Bowen, Steven M. Foster, Said Izadi