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:
Apr. 13, 1976
Filed:
Dec. 12, 1974
Shozo Iwasaki, Ebina, JA;
Abstract
A Rockwell hardness tester having a load application mechanism having a load transfer unit divided into an upper transfer member and a lower transfer member having bores through which an indenter shaft of the tester extends axially with some play. The transfer members are disposed coaxially and have a pair of balls therebetween horizontally arranged in a direction perpendicular to a knife edge on an upper end of the upper transfer member supporting a load application lever. The load transfer unit rests on a spring support cylinder with an initial load spring circumferentially thereof and having its lower convolutions resting on the expanded portion of the indenter shaft and the load applied to the tester is accordingly never applied eccentrically to the indenter shaft.