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:
Jul. 29, 1986
Filed:
Feb. 15, 1985
Applicant:
Inventors:
Vladimir Drits, Crystal, MN (US);
Yevsey Gutman, Minneapolis, MN (US);
Assignee:
Mar Engineering, Inc., Crystal, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5116577 ; 5116575 ; 5116592 ; 403291 ;
Abstract
A control system for precision machine tools and similar devices provides a precise position during active operations on a table supported workpiece or part. The present system provides a support table on which a machine part or specimen is mounted that is controlled in its position through a friction free spring type hinge relative to a base, and which is held therein with a piezoelectric actuator operated in an active closed loop system to maintain a set position without any backlash.