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:
Oct. 11, 1983
Filed:
Apr. 29, 1982
Roger D Zwicker, Arlington, TX (US);
Victor Equipment Company, Denton, TX (US);
Abstract
An improvement in a cutting torch assembly that obviates the tendency to have flashback and sustained burning with certain fuels, including cutting oxygen valve and passageway, preheat oxygen valve and passageway, fuel gas valve and passageway, a head having a tip end for having a tip affixed thereto and having a head passageway for cutting oxygen and a head passageway for mixture of fuel and oxygen, the improvement being characterized by an integral head mixer having within the head an incoming preheat oxygen passageway and incoming fuel passageway, a mixer insert disposed within the incoming fuel passageway and having engaging seal means for constraining the fuel to flow through the insert, the insert having a centrally disposed bore communicating at its inlet end with the incoming fuel passageway and terminating in a plurality of at least three apertured passageways that flow the fuel into intimate admixture with the preheat oxygen in the annular space thereabout. Also described are specific preferred embodiments including particular critical ratios of areas for mixing, numbered passageways and the like to achieve the necessary admixing.