Patents Assigned to Hickham Industries, Inc.
  • Process for restoring a turbine blade
    Patent number: 7648341
    Abstract: The restoring process machines out a crack in the platform of a turbine blade to form a pocket that then receives a plug of compatible material. The plug is brazed in place and the blade is the machined and cleaned to present a clean fresh surface where the plug is inserted. The plug has a lower coefficient of thermal expansion so that the plug area has less compressive stresses in the repaired area.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: January 19, 2010
    Assignee: Sulzer Hickham Industries, Inc.
    Inventor: Matthew Charles Lau
  • Method of applying braze materials to a substrate
    Patent number: 6575349
    Abstract: A HVOF process is used for applying brazing materials to repair surfaces of a substrate such as a turbine blade. The brazing material is applied in powdered form and is free of binders and adhesives. The brazing materials may be any one or more of a nickel based, cobalt based or ferrous based high temperature brazing material. Alloys of these elements may be used together with a temperature depressing melting point element such as boron or silicon.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: June 10, 2003
    Assignee: Hickham Industries, Inc.
    Inventor: Hans Van Esch
  • Methods for manufacture and repair and resulting components with directionally solidified or single crystal materials
    Patent number: 6331361
    Abstract: A method for manufacturing and repair wherein a component composed of equiaxed cast or wrought alloys has at least one section joined thereto composed of directionally solidified or single crystal material
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: December 18, 2001
    Assignee: Hickham Industries, Inc.
    Inventors: Hans van Esch, Wayne Greaves