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:
Jun. 04, 2019
Filed:
Apr. 16, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A centrifugal fanincludes a main plate, a shroud, and a plurality of bladesprovided between the main plateand the shroud. The bladeincludes abutting surfaces, andthat respectively abut on abutted surfaces, and another abutted surface formed on at least one of the main plateand the shroud. The abutting surfaces, andincludes projections, andformed thereon, respectively, and extending in a straight or curved line. The abutting surfaces, andand the abutted surfaces, and the other abutted surface are respectively welded to each other by laser beamsandrespectively directed onto and moved along the projectionand the projectionsand
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