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. 23, 1985
Filed:
Oct. 24, 1983
Barrie S Shabel, Murrysville, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
Means and method for making rapid determinations of the strength of metal materials from hardness evaluations of the materials. The means comprises at least two indentors for making impressions in a metal material, the indentors having predetermined dimensions. Apparatus for mechanically directing the indentors against the material are provided and mechanically connected to the indentors. The driving apparatus translates the indentors against the material under predetermined loads and in a manner that makes impressions in the material, the geometric configurations of which correspond to the configurations of the indentors. Means are provided for characterizing the respective geometries of the impressions, and means are provided for utilizing the dimensions of the indentors, the values of the applied loads, and the respective geometries, for calculating the yield and/or tensile strength of the material therefrom.