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. 01, 2002
Filed:
Feb. 29, 2000
Applicant:
Inventor:
Yao-En Li, Buffalo Grove, IL (US);
Assignee:
American Air Liquide, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/76 ; C01B 3/36 ; B01J 1/200 ;
U.S. Cl.
CPC ...
C21D 1/76 ; C01B 3/36 ; B01J 1/200 ;
Abstract
Systems useful for superadiabatic combustion generation of a reducing atmosphere for metal heat treatment include a superadiabatic reactor which supplies a reducing atmosphere to a metal heat treatment apparatus. In one aspect, the reactor includes a porous medium and a start-up heater in the flow path of the gas that is to be heated. In another aspect, the gas is passed through a porous medium in alternating, opposite directions by the control of valves which lead the gas to and from the medium. In yet another aspect, a gas inflow pipe leads into an insulated porous bed from which the gas flows in a counter flow manner around the inflow pipe.