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:
Apr. 18, 1989
Filed:
Jul. 30, 1987
Applicant:
Inventors:
Assignee:
L'Air Liquide, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23D / ;
U.S. Cl.
CPC ...
2394193 ; 239422 ; 239423 ; 239428 ;
Abstract
The nozzle comprises an oxidizing outer heating ring and a carburizing inner heating ring surrounding the cutting jet. This nozzle is made in two parts respectively forming a unit (1) opf injectors and a cutting unit (2) in adjoining relation to each other in a transverse joint plane and in which are provided various passageways (4, 5). Grooves (7) are provided for putting the outer passageways (5) in communication with the inner passageways (4) so as to supply to the inner passageways (4) the required small quantity of oxygen for the inner heating ring from the oxy-fuel mixture supplied to the outer passageways (5).