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. 25, 1991
Filed:
Oct. 23, 1989
Prabir R Bhowal, Houston, TX (US);
Samuel V Thamboo, Houston, TX (US);
Cooper Industries, Inc., Houston, TX (US);
Abstract
Fine grain titanium forgings and to a process for refining the grain size of .alpha. and .alpha.-.beta. titanium alloys through forging and recrystallization above the alloy's .beta.-transus temperature. Specifically, the method employs an isothermal press in which a billet heated above the alloy's .beta.-transus temperature, forged to produce an elongated, flattened grain structure, is held above the alloy's .beta.-transus temperature for a predetermined time to allow fine grains to nucleate and grow through recrystallization, and then is quenched to arrest grain growth and to establish a fine grained titanium alloy. A second forging step may be employed to attain an aspect ratio of the grains. The fine grained titanium forgings made by this process have a maximum prior .beta.-grain size of 0.5 mm throughout the workpiece.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile