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:
Jan. 20, 2015
Filed:
Apr. 07, 2014
Fanuc Corporation, Yamanashi, JP;
Tooru Nukui, Yamanashi, JP;
Fanuc Corporation, Minamitsuru-Gun, JP;
Abstract
A gas laser oscillator includes a control apparatus which creates a command voltage, a laser power supply which supplies power to a discharge tube in accordance with the command voltage, and a voltage detecting unit which detects a voltage applied to the discharge tube. The control apparatus includes a determining unit which determines whether or not a discharge is initiated in the discharge tube, based on a rate of changes in the voltage detected by the voltage detecting unit when power is supplied to the discharge tube in accordance with the command voltage being increased in a stepwise manner. The determining unit is configured to determine whether or not a discharge is initiated in the discharge tube after an initial step that at least includes the first incremental step of the command voltage being increased in a stepwise manner.