Patents by Inventor David P. Edmonds

David P. Edmonds 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).

  • Method and apparatus for building a workpiece by deposit welding
    Patent number: 4842186
    Abstract: A method and apparatus for building a workpiece of a desired geometry by deposit welding with a reusable preform. The reusable preform forms, supports, and cools the deposited molten weld material puddle while the weld material is solidifying thereby eliminating the need for a conventional preform. The reusable preform may be mobile or stationary in any shape, e.g., a block, a cylinder, or a belt. It is manufactured from either a combination of or exclusively of, a ceramic material or a material with high thermal conductivity.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: June 27, 1989
    Assignee: The Babock & Wilcox Company
    Inventors: Thomas E. Doyle, David P. Edmonds, Michael D. McAninch, Patrick M. Ryan
  • Method and apparatus for controlling weld bead shape to eliminate microfissure defects when shape melting austenitic materials
    Patent number: 4782206
    Abstract: A method and apparatus for eliminating microfissure defects in shape melted austenitic material components by closely controlling the deposited weld bead shape to a geometry where the underbead shape has no sharp discontinuties. Oscillation of the welding torch head during the process is used to smooth out the weldbead shape and is especially adapted for use with gas metal-arc welding processes.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: November 1, 1988
    Assignee: The Babcock & Wilcox Company
    Inventors: Paul S. Ayres, David P. Edmonds, Dennis D. Hartwig, David E. Merker, Charles M. Weber
  • Method and apparatus for building a workpiece by deposit welding
    Patent number: 4775092
    Abstract: A method and apparatus for building an axially symmetrical workpiece of desired geometry by deposit welding which uses a translatable welding head for depositing molten weld material and a rotatable, reusable shoe which translates with the welding head. The rotatable, reusable shoe forms, supports and cools the deposited molten weld material puddle while the weld material is solidifying thereby eliminating the need for a conventional preform.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: October 4, 1988
    Assignee: The Babcock & Wilcox Company
    Inventors: David P. Edmonds, Michael D. McAninch