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:
Mar. 16, 2004
Filed:
Aug. 10, 2001
Ludger Toerner, Eppertshausen, DE;
Schenck Process GmbH, Darmstadt, DE;
Abstract
The invention relates to a device for measuring the flow of material, especially of a flow of bulk material, according to the Coriolis principle of measurement. The device has an impeller ( ) which is driven by a motor ( ) with a constant r.p.m. The flow of material is fed to the impeller ( ) and is radially deflected. The driving torque is measured by a torque measuring sensor. The driving torque is transmitted to a force sensor ( ) by a pivot bearing ( ) for determining the torque. The force-sensing element ( ) has at least two horizontal leaf springs ( ) which cross each other and which are arranged in such a way that the crossing point of the leaf springs ( ) coincides with a rotational axis ( ). A thrust bearing ( ) is integrated into the pivot bearing ( ). The weight of the drive train is transmitted to a stationary housing ( ) by the thrust bearing ( ) with the help of a ball bearing or toe bearing. A frictionless air bearing ( ) is provided for horizontally supporting the drive shaft ( ) in order to improve the measuring accuracy.