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:
Aug. 31, 1976
Filed:
May. 27, 1975
Amado Cabo, Pittsburgh, PA (US);
Horace Pops, Pittsburgh, PA (US);
Essex International, Fort Wayne, IN (US);
Abstract
An improved ternary brass alloy includes silicon as the additive material. The composition limits of the constituents of the brass are fixed by two factors: (1) the M.sub.s or Martensite transformation temperature, and (2) the brass must be a totally beta phase above 454.degree.C. The composition may be betatized, that is, heated at approximately 800.degree.C. and quenched at a fast rate so that the beta phase is retained in order to provide material having a shape memory effect, a low spring back coefficient and super elastic properties. A continuous betatizing and quenching process may be utilized in the manufacture of strip and sheet products. Alternatively, the composition may be hot worked between 600.degree. and 700.degree.C. and then cold worked to provide mixed alpha plus beta material having a low spring back coefficient.