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. 22, 2008
Filed:
Aug. 30, 2006
Helmut Pfeiffer, Steinen, DE;
Helmut Pfeiffer, Steinen, DE;
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A device for establishing and/or monitoring a predetermined fill level in a container is provided, to indicate the fill level in a container and exhibiting a best possible, optimum fit for an application, which device includes: a mechanical oscillatory structure placed at the height of the predetermined fill level, which structure exhibits a membrane and two mutually separated oscillation bars formed thereon, an electromechanical transducer, which in operation excites the oscillatory structure to oscillate with oscillations, such that the oscillation bars execute oscillations perpendicular to their longitudinal axis, a receiver- and evaluation-unit, which uses the oscillations to establish and/or monitor whether the predetermined fill level has been reached, or not, in which the oscillation bars exhibit a shape in which a mass moment of inertia of a liquid quantity, which the oscillation bars move with them in the immersed state in the liquid, is as large as possible and greater than 0.2 times a mass moment of inertia of the oscillation bars.