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:
Feb. 10, 1981
Filed:
Sep. 19, 1978
Applicant:
Inventor:
Thomas J Schultz, Toledo, OH (US);
Assignee:
Midland-Ross Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
148 27 ; 148 165 ; 148 166 ; 252375 ;
Abstract
The present invention is a method of generating Class 302 type carrier gas for use in carburizing processes. The gas has a composition of approximately 40% nitrogen, 40% hydrogen and 20% carbon monoxide. The nitrogen is mixed with the methanol in a vaporizer where the methanol is vaporized. The vaporized methanol and nitrogen mixture is heated in a catalyst filled retort where methanol reacts to yield hydrogen and carbon monoxide. The relative volume percents of the nitrogen, hydrogen, and carbon monoxide is substantially the same as in the Class 302 type carrier gas.