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:
Aug. 26, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventor:
Valerian Nemchinsky, Florence, SC (US);
Assignee:
The ESAB Group, Inc., Florence, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191215 ; 21912151 ; 21912149 ; 21912148 ; 219 75 ;
Abstract
A plasma arc torch having a nozzle assembly positioned adjacent the discharge end of the electrode of the torch, and wherein the nozzle assembly comprises a nozzle base defining an annular outer surface and a lower nozzle member defining an annular inner surface which is spaced from the outer surface so as to define an annular water passageway therebetween. The annular water passageway defines an angle with the longitudinal axis of the torch which is less than about 30.degree. which provides both an efficient cooling of the nozzle assembly and constriction of the plasma arc, and without unduly cooling the plasma arc.