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:
Nov. 13, 2012
Filed:
May. 18, 2010
Stephan Baltisberger, Gossau, CH;
Thomas Köppel, Oetwil am See, CH;
Stephan Baltisberger, Gossau, CH;
Thomas Köppel, Oetwil am See, CH;
Mettler-Toledo AG, Greifensee, CH;
Abstract
A force-measuring device, particularly a balance, operates on the principle of electromagnetic force-compensation. An electric coilis arranged to be movable in a magnet system. The coil has at least two windings W, Wand a current supply device PB having at least two partial current sources PB, PB, the current sources each assigned to a corresponding winding. A device CU controls and/or regulates the current supplied to the windings by the partial current sources in such a way that, dependent on a force L acting on the force-measuring device, a current I, Iis sent through each of the windings. The sum of the at least two electromagnetic forces which are thereby generated forms the compensation force, while, at the same time, the power dissipated by the coil always takes on a given predetermined value Ptg.