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:
Feb. 06, 1996
Filed:
Aug. 17, 1994
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21C / ;
U.S. Cl.
CPC ...
722531 ; 72260 ;
Abstract
Disclosure is a method for producing a cryostatic stabilizer composed of high-purity aluminum which comprises extruding the high-purity aluminum at an extrusion temperature of 250.degree. to 500.degree. C., an extrusion speed of not more than 20 m/min and an extrusion ratio of 10 to 150 by using an extruding machine equipped with a cylindrical die having helical grooves or projections on the inner surface. The method is industrially advantageous.