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:
Nov. 18, 2003
Filed:
Jul. 20, 2001
Applicant:
Inventor:
Paul Francis Stratton, Huddersfield, GB;
Assignee:
The BOC Group, plc, Windlesham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/56 ;
U.S. Cl.
CPC ...
C21D 1/56 ;
Abstract
Objects formed of engineering and tool steels are quenched from above 850° C. by immersion in an aqueous suspension of inorganic particles. The greater the proportion of particles, the slower the quench. The suspension may be saturated with carbon dioxide.