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:
Jun. 29, 1982
Filed:
Jun. 09, 1980
Applicant:
Inventor:
Arthur Miller, Costa Mesa, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 79 ;
Abstract
A hardness tester comprising a tubular element mounted in an upright position, a ball, and a retaining mechanism for the ball. A passage extends from the retaining mechanism through the tubular element and terminates in an opening adapted to be positioned over a surface of a test specimen. The tubular element has a wall through which the passage is visible from the exterior of the tubular element and indicia on the wall. The ball has a lesser cross-sectional area than the passage and a lesser cross-sectional area than the opening.