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:
Jan. 18, 2005
Filed:
Jun. 07, 2002
Applicant:
Warren C. Oliver, Knoxville, TN (US);
Inventor:
Warren C. Oliver, Knoxville, TN (US);
Assignee:
MTS Systems Corporation, Eden Prairie, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 714 ; G01B 730 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method and device for providing damping in a displacement device that moves an element. The displacement device has a permanent magnet generating a first magnetic field and a first coil movable with the element. The first coil receives a selected current from an external source to generate a second magnetic field. The damping method includes moving a second coil in at least one magnetic field to generate a current in the second coil. The method includes varying the current in the second coil to vary the damping in the displacement device.