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. 29, 1977
Filed:
Jul. 01, 1976
Akira Asari, Osa, JA;
Kenzou Tatsuno, Kobe, JA;
Kobe Steel, Ltd., Kobe, JA;
Abstract
A process for converting aluminum scrap into finished articles by compaction, heating and extrusion. The process comprises the steps of compacting the aluminum scrap at ambient temperature into a billet having a density between 1.8 and 2.4 g/cm.sup.3, heating the compacted billet to a temperature between 350.degree. and 550.degree. C, compacting the heated billet into a dense mass having a density about 2.4 g/cm.sup.3 either in an extrusion container, while maintaining conditions under which the air pressure at the outer periphery of the billet is lower than that in the central portion of the billet, or externally of the extrusion container, and subsequently, after completion of the second compaction, consolidating the secondly compacted billet by extrusion through an extrusion die fitted to the container while maintaining the above mentioned conditions, whereby void-free and scab-free finished articles of good quality are efficiently produced with a small apparatus using little energy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile