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. 03, 2011
Filed:
Sep. 04, 2007
Nakhleh A. Hussary, West Lebanon, NH (US);
Christopher J. Conway, Wilmot, NH (US);
Thierry R. Renault, West Lebanon, NH (US);
Darrin H. Mackenzie, Windsor, VT (US);
Nakhleh A. Hussary, West Lebanon, NH (US);
Christopher J. Conway, Wilmot, NH (US);
Thierry R. Renault, West Lebanon, NH (US);
Darrin H. MacKenzie, Windsor, VT (US);
Thermal Dynamics Corporation, West Lebanon, NH (US);
Abstract
Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around a plasma stream that exits a tip in one of a swirling manner and a radial manner, and a second flow of auxiliary gas is directed around the first flow of auxiliary gas and the plasma stream in one of a coaxial manner, an angled manner, and a radial manner. The first flow of auxiliary gas functions to constrict and shape the plasma stream to improve cut quality and cut speed, and the second flow of auxiliary gas functions to protect the plasma arc torch during piercing and cutting and to cool components of the plasma arc torch such that thicker workpieces may be processed with a highly shaped plasma stream.