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:
May. 26, 1987
Filed:
Apr. 24, 1986
Edward Tobolski, Beacon Falls, CT (US);
Ronald F Grosso, Shelton, CT (US);
Joseph Cieplak, Northford, CT (US);
Elliot Lang, Hamden, CT (US);
Ralph Hershberger, Philadelphia, PA (US);
Page-Wilson Corporation, Bridgeport, CT (US);
Abstract
An automatic tester for the hardness of materials is disclosed in which the operations are automated and in which the possibility of human error is significantly eliminated. Particularly, a linear digital encoder is employed which is attached to the capstan and elevating table arrangement. Pulses are developed according to the movement of the penetrator in the workpiece and are utilized to standardize and measure the time during which the major and minor loads are applied to the workpiece. Additionally, use of a CPU according to certain preset procedures and methods allows for enhanced reliability of the testing procedures. Conversions from different testing scales as well as corrections of certain factors is easily accomplished. Still further, the tester includes the provision to insure that certain ASTM standards are met by testing the device with standard test blocks and comparing results with those preset in the CPU.