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:
Oct. 20, 1998
Filed:
Jun. 24, 1996
Ann Melinda Ritter, Albany, NY (US);
John Raymond Hughes, Scotia, NY (US);
Melvin Robert Jackson, Niskayuna, NY (US);
Francis Lawrence Kirkpatrick, Galway, NY (US);
Francisco Jose Cunha, Clifton Park, NY (US);
Nesim Abuaf, Schenectady, NY (US);
Ronald Scott Bunker, Niskayuna, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Methods of making cylindrical structures with cooling channels, such as, for example, combustor/transition pieces for gas turbines having a double wall with a plurality of cooling channels, both axially and, in some cases, circumferential cross-flow passages positioned between the structure's inner member and the outer member to provide cooling air thereto, are disclosed. The cooling channels are formed in the area between the inner member of the structure and the outer member thereof. The passages preferably extend both axially and circumferentially with respect to the direction of flow through the structure. The axial passages extend completely from one end to the other and the circumferential passages extend around the circumference of the structure.