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:
Mar. 11, 2008
Filed:
Apr. 13, 2006
Kazuya Ohta, Fujiyoshida, JP;
Michinori Maeda, Gotenba, JP;
Akira Egawa, Gotenba, JP;
Fanuc Ltd, Yamanashi, JP;
Abstract
In an laser oscillator (), a blower () for circulating a laser medium between an electric discharge tube () and a circulating passage () includes: a casing () having a suction port () and an exhaust port (); and a blade () pivotally supported in the casing () so that the blade () can face the suction port () and the exhaust port (). The blade () is formed into a shape in which a diameter of the blade () is different at a position on a cross section perpendicular to a rotary central line (O), and a gap (G) between a portion, in which a diameter of the blade () is relatively large, and the casing is larger than a gap (G) between a portion, in which a diameter of the blade () is relatively small, and the casing. Due to the foregoing, a highly reliable blower used for a laser oscillator, the reduction of the blower efficiency of which is suppressed to be as small as possible, can be provided.