Patents by Inventor William Elliot Bachrach

William Elliot Bachrach 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).

  • Selectively flexible caul and method of use
    Patent number: 6290895
    Abstract: A caul is used in an autoclave process for consolidating a composite, multi-ply, gas turbine fan blade preform having first and second opposite sides and a varying thickness therebetween. The caul includes a body having fibers situated in a matrix. The caul is complementary in shape to the preform first side and has a bending flexibility varying over the body for correspondingly varying consolidation of the preform. The second side of the preform is shaped by a bottom mold in the autoclave chamber.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 18, 2001
    Assignee: General Electric Company
    Inventors: Weiping Wang, Charles Richard Evans, William Elliot Bachrach, John Michael Muldoon, Albert Benjamen Crogan, Robert Paul Tyler
  • Poly-component blade for a steam turbine
    Patent number: 6139278
    Abstract: A steam turbine blade, such as those used in an electric power generation steam turbine, has an airfoil portion. The airfoil portion includes a metallic section consisting essentially of metal and at least one (lightweight) panel section not consisting essentially of metal. The metallic section extends from generally the blade root to generally the blade tip. Each panel section is an elastomeric section. The metallic section and the at-least-one panel section only together define a generally airfoil shape.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: October 31, 2000
    Assignee: General Electric Company
    Inventors: Donald Fredrick Mowbray, John James Fitzgerald, William Elliot Bachrach, Wendy Wen-Ling Lin, Scott Roger Finn
  • Gas turbine blade having areas of different densities
    Patent number: 5839882
    Abstract: A lightweight, impact-resistant gas turbine blade, such as an aircraft engine fan blade, includes a metallic airfoil portion with at least one surface recess containing a void volume having adjacent first and second regions. Filler material is placed in and bonded to the surface recess and generally completely fills the void volume. The filler material in the first region has a higher average modulus of elasticity than that of the filler material in the second region.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: November 24, 1998
    Assignee: General Electric Company
    Inventors: Scott Roger Finn, Ravindra Kumar Pandey, John James Fitzgerald, William Elliot Bachrach
  • Multi-component blade for a gas turbine
    Patent number: 5720597
    Abstract: A lightweight, impact-resistant gas turbine blade, such as an aircraft engine fan blade, has an airfoil portion which includes a metal section and at least one foam section which together define a generally airfoil shape. The metal section extends from generally the blade root to generally the blade tip. A composite skin generally completely surrounds, and is bonded to, the metal section and the at-least-one foam section. Preferably, an erosion coating generally completely surrounds, and is bonded to, the composite skin.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: February 24, 1998
    Assignee: General Electric Company
    Inventors: Weiping Wang, William Elliot Bachrach, Wendy Wen-Ling Lin, Scott Roger Finn