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:
Jul. 14, 2020
Filed:
Nov. 26, 2013
Applicant:
Hypertherm, Inc., Hanover, NH (US);
Inventors:
Assignee:
Hypertherm, Inc., Hanover, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05H 1/28 (2006.01); B23K 9/28 (2006.01); H05H 1/34 (2006.01);
U.S. Cl.
CPC ...
H05H 1/28 (2013.01); B23K 9/285 (2013.01); H05H 1/34 (2013.01); H05H 2001/3457 (2013.01);
Abstract
In some aspects, methods for providing a uniform shield gas flow for an air-cooled plasma arc torch can include supplying a shield gas to a shield gas flow channel defined by an exterior surface of a nozzle and an interior surface of a shield; flowing the shield gas along the shield gas flow channel; reversing the flow of the shield gas along the shield gas flow channel using a recombination region, the recombination region comprising at least one flow reversing member; and flowing the shield gas from the mixing region to an exit orifice of the shield, thereby producing a substantially uniform shield gas flow at the exit orifice.