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. 11, 1998
Filed:
Aug. 13, 1997
Gregory William Diehl, Florence, SC (US);
The ESAB Group, Inc., Florence, SC (US);
Abstract
A post-mixed cutting torch selectively operable in a pilot mode and a cutting mode is provided by the present invention. The control body includes a fuel passage and an oxygen passage which is divided into a preheat oxygen supply branch and a cutting oxygen supply branch. A fuel flow valve is provided in the fuel passage and an oxygen flow valve is provided in the cutting oxygen supply branch of the oxygen passage. Advantageously, an interconnecting passage extends between the preheat oxygen supply branch and the cutting oxygen supply branch. Accordingly, the torch is operable in a preheat/cutting mode wherein oxygen is directed through both the preheat and cutting oxygen apertures of a cutting nozzle. In addition, each of the fuel and oxygen flow valves is associated with a bypass channel which allows the torch to be operable in a fuel saving pilot mode wherein oxygen is directed through both the preheat and cutting oxygen apertures of a cutting nozzle.