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:
May. 13, 2014
Filed:
Oct. 18, 2007
Yoshihiro Yamaguchi, Nomi, JP;
Takahiro Iriyama, Nomi, JP;
Yoshihiro Yamaguchi, Nomi, JP;
Takahiro Iriyama, Nomi, JP;
Komatsu Industries Corporation, Komatsu-shi, JP;
Abstract
In a main circuitof the plasma cutter power supply device, a plurality of DC power units--n of low capacity are connected in parallel on their DC output sides, and are connected to a plasma torch. Each power unit--n can operate asynchronously and independently from each other. The power supply control devicecontrols the number of power units to be operated, and the intensity of output electrical current at which each of them is to be operated, according to the cutting conditions (the nature of the material to be cut, its thickness, and the cutting speed) and according to the number of power units which can be operated. If some of the power units are faulty, the power supply control devicecontrols the cutting conditions which can be accepted, according to the number of normal power units.