Patents by Inventor Cameron Todd Walters

Cameron Todd Walters 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).

  • HEAT EXCHANGE DEVICE AND METHOD
    Publication number: 20140238642
    Abstract: A heat exchange device comprising a fluid flow passage having a plurality of successive segments in fluid flow communication with one another, the segments being adapted to maintain a developing flow therein and thereby improve heat transfer.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: Pratt & Whitney Canada Corp.
    Inventors: Joseph Horace Brand, Kevin Allan Dooley, Cameron Todd Walters, Michael Dowhan
  • Heat exchange device and method
    Patent number: 8408282
    Abstract: A heat exchange device comprising a fluid flow passage having a plurality of successive segments in fluid flow communication with one another, the segments being adapted to maintain a developing flow therein and thereby improve heat transfer.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 2, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Joseph Horace Brand, Kevin Allan Dooley, Cameron Todd Walters, Michael Dowhan
  • Method of balancing a gas turbine engine rotor
    Patent number: 7912587
    Abstract: A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all possible component stacking positions to generate an optimized stacking position for each component of the assembly to minimize assembly unbalance.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: March 22, 2011
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Cameron Todd Walters, Richard Benoit, Alphonse Bellemare, Ronald Leslie Robinson, Jiemin Wang, Harry Harris
  • HEAT EXCHANGE DEVICE AND METHOD
    Publication number: 20090255652
    Abstract: A heat exchange device comprising a fluid flow passage having a plurality of successive segments in fluid flow communication with one another, the segments being adapted to maintain a developing flow therein and thereby improve heat transfer.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 15, 2009
    Inventors: Joseph Horace BRAND, Kevin Allan Dooley, Cameron Todd Walters, Michael Dowhan
  • METHOD OF BALANCING A GAS TURBINE ENGINE ROTOR
    Publication number: 20090025461
    Abstract: A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all possible component stacking positions to generate an optimized stacking position for each component of the assembly to minimize assembly imbalance.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: Cameron Todd WALTERS, Richard Benoit, Alphonse Bellemare, Ronald Leslie Robinson, Jiemin Wang, Harry Harris
  • Variable AC voltage regulation control method and apparatus
    Patent number: 7262521
    Abstract: A method and apparatus is disclosed for providing a regulated voltage output from a variable voltage source, alternately using saturation control and cancelling control to regulate output.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: August 28, 2007
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Kevin Allan Dooley, Cameron Todd Walters
  • Deflector for controlling entry of cooling air leakage into the gaspath of a gas turbine engine
    Patent number: 6077035
    Abstract: A deflector for redirecting cooling air leakage to improve the efficiency of a gas turbine engine rotors. Adjacent rotor blades have a radially extending gap between each adjacent rotor blade and cooling air leaks into the gaps resulting in engine inefficiency. A deflector, disposed circumferentially on a forward face of the coverplate, deflects cooling air leakage, flowing from the running seal through the cooling air leakage path, away from the gaps between the blades, onto the outward surface of the blade platform, and into the gaspath at an acute angle relative to rearwardly axial flow. A forwardly extending flange deflects cooling air leakage forwardly around the blade platform lip.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: June 20, 2000
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Cameron Todd Walters, Valerio Valentini