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:
Jul. 18, 1989
Filed:
Jan. 07, 1988
Applicant:
Inventors:
Daniel Marie, Rambouillet, FR;
Michel Rostan, St. Cyr L'Ecole, FR;
Marc Luco, Vert St. Denis, FR;
Henry Thoor, Corbeil Essonnes, FR;
Assignee:
Stein Heurtey, Ris Orangis, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
266117 ; 266159 ;
Abstract
An apparatus for providing the outer quenching and the inner quenching of tubular pieces, notably of steel tubes, characterized in that it includes successively, in the advancement direction of the tubes: