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. 18, 2000
Filed:
Jun. 02, 1998
Applicant:
Inventors:
Donald C Lovett, Shelton, CT (US);
Joseph G Marcinkiewicz, St. Charles, MO (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ; B29C / ;
U.S. Cl.
CPC ...
318254 ; 318135 ; 318128 ; 156 735 ; 156580 ;
Abstract
A system for controlling the movement of a movable member with respect to a stationary member, such as is found in a vibration welding apparatus. The system may include a force controller that converts desired force command signals into desired flux command signals and a flux controller that controls the flux in a magnetic core of the stationary assembly to effect the desired movement of the movable member. The stationary assembly may include a plurality of magnetically uncoupled E-cores of paramagnetic material.