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. 05, 2015
Filed:
Oct. 11, 2007
Yoshihiro Yamaguchi, Nomi, JP;
Shigeo Morimoto, Hiratsuka, JP;
Mikio Minonishi, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Komatsu Industries Corporation, Komatsu-shi, JP;
Abstract
In order to increase the flow rate of coolant liquid supplied to the nozzle () of a plasma torch () and to extend the life of the plasma torch (), within the plasma torch (), an electrode coolant liquid passage (, and) which supplies coolant liquid to an electrode (), and a nozzle coolant liquid passage (and) which supplies coolant liquid to the nozzle (), are provided separately as independent coolant liquid passages which extend in parallel, and which are mutually electrically insulated from one another. Moreover, the flow rate of coolant liquid in the nozzle coolant liquid passage is greater than the flow rate of coolant liquid in the electrode coolant liquid passage.