Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...
Reexamination Certificate
2011-08-16
2011-08-16
King, Roy (Department: 1733)
Metal treatment
Process of modifying or maintaining internal physical...
Carburizing or nitriding using externally supplied carbon or...
C148S222000, C148S225000, C148S319000, C420S105000, C420S120000
Reexamination Certificate
active
07998282
ABSTRACT:
A method of heat-treating a steel member including carburizing a steel member in a carburizing gas under a reduced pressure. The steel member is then cooled in a cooling gas having a pressure lower than atmospheric pressure. A desired portion of the cooled steel member is then heated using high-density energy. The steel member is then quenched.
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Kanisawa Hideo
Kozawa Shuji
Ohbayashi Koji
Okada Kazuaki
Shirai Hisao
Aisin Aw Co. Ltd.
Fogarty Caitlin
King Roy
Oliff & Berridg,e PLC
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