The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2005
Filed:
Aug. 19, 2003
Robert William Bruce, Loveland, OH (US);
Antonio Frank Maricocchi, Loveland, OH (US);
Christopher Lee Lagemann, Cincinnati, OH (US);
John Douglas Evans, Sr., Springfield, OH (US);
Keith Humphries Betscher, West Chester, OH (US);
Rudolfo Viguie, Cincinnati, OH (US);
David Vincent Rigney, Cincinnati, OH (US);
David John Wortman, Niskayuna, NY (US);
William Seth Willen, Glastonbury, CT (US);
Robert William Bruce, Loveland, OH (US);
Antonio Frank Maricocchi, Loveland, OH (US);
Christopher Lee Lagemann, Cincinnati, OH (US);
John Douglas Evans, Sr., Springfield, OH (US);
Keith Humphries Betscher, West Chester, OH (US);
Rudolfo Viguie, Cincinnati, OH (US);
David Vincent Rigney, Cincinnati, OH (US);
David John Wortman, Niskayuna, NY (US);
William Seth Willen, Glastonbury, CT (US);
General Electric Company, Schenectady, NY (US);
Abstract
An electron beam physical vapor deposition (EBPVD) apparatus for producing a coating material (e.g., a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber through an aperture in a wall of the chamber and onto a coating material within a coating region defined within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the inclusion within the coating chamber of a second chamber that encloses the aperture so as to separate the aperture from the coating region. The second chamber is maintained at a pressure lower than the coating region.