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. 30, 1981
Filed:
Jan. 18, 1979
Applicant:
Inventor:
Claus Kleesattel, San Jose, CR;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ; G02B / ; G01N / ;
U.S. Cl.
CPC ...
356378 ; 73 81 ; 250239 ; 350-62 ; 356387 ;
Abstract
Methods and apparatus are provided for determining the magnitude of hardness testing indentations by scanning the indentations with a light source with or without an external load being applied while the scanning takes place. The intensity of the reflected light from the surface under test is measured utilizing a light-senstive surface surrounding the measuring field. One or more diameters or the entire indentation is scanned and measured to determine the magnitude of the indentations.