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. 30, 1985
Filed:
Aug. 26, 1983
Applicant:
Inventors:
Robert A Spurling, Thousand Oaks, CA (US);
Burton I Davis, Camarillo, CA (US);
Norman G Taylor, Thousand Oaks, CA (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51 71 ; 51 57 ; 51 90 ; 51119 ; 5121 / ;
Abstract
A mechanical grinding device is provided for preparing very thin specimens such as transmission electron microscopy specimens. The specimens are held on the end of a long rod which is pressed against a spherical tool by the weight of the rod. The opposite end of the rod extends through a hole in a pivot plate which is spaced above the tool. The tool is mounted on a tool holder which is eccentrically positioned on a rotating base by a pivot. As the base rotates, the tool holder moves and a concave surface is ground in the specimen, thus thinning it.