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:
Jun. 09, 1987
Filed:
Sep. 12, 1985
Applicant:
Inventors:
Carol A Girrell, North Brunswick, NJ (US);
Joseph E Japka, Cherry Hill, NJ (US);
Assignee:
Procedyne Corp., New Brunswick, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C21O / ;
U.S. Cl.
CPC ...
266 78 ; 266 81 ; 266 90 ; 266252 ;
Abstract
This application discloses a method and apparatus for conducting various metal treatment processes including nitriding, carbonitriding, nitrocarburizing, surface activation, and selective oxidation in any desired sequence in the same fluidized bed furnace. The apparatus comprises a fluidized bed furnace having a humidifier system including a humidifier and superheater and the method involves exposing a metal workpiece sequentially to at least two separate metal treatment atmospheres in a fluidized bed furnace.