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:
Nov. 26, 2013
Filed:
Oct. 25, 2011
Khanhson Pham, Tokyo, JP;
Hiroshi Nakajima, Tokyo, JP;
Khanhson Pham, Tokyo, JP;
Hiroshi Nakajima, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The present invention relates to a method of joining a huband a shroudof an impeller, either one of which has bladesintegrally formed thereon, by welding. During the welding, in an upright state in which the hubis placed to face a mount surface, the huband the shroudare placed on top of each other to form an assembled body. Welding is performed on the assembled bodycovered with a heat insulating jacket(to), the jacketcovering the assembled bodyexcept an open region (OP) and an inflow portrequired for welding. When welding of one open region OP is completed, a new open region OP is formed by moving the heat insulating jacketwith respect to the assembled body, and then the next welding is performed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile