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. 16, 1998
Filed:
Mar. 07, 1996
Applicant:
Inventors:
Gary S Sandlass, Maple Plain, MN (US);
Larry G Mosiman, Eden Prairie, MN (US);
Scott G Johnson, Chaska, MN (US);
Douglas S Morrissette, Plymouth, MN (US);
Assignee:
MTS Systems Corporation, Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ; G01L / ;
U.S. Cl.
CPC ...
73779 ; 73796 ;
Abstract
A material testing machine includes a support structure and a DC brushless linear motor operable to develop a force along a reaction axis. The DC brushless linear motor includes a set of magnets disposed along a line on the support structure parallel to the reaction axis. An elongated member slidably guided by the support structure on the reaction axis includes a plurality of coils proximate the set of magnets. A controller selectively energizes the coils.