Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-09-05
2006-09-05
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S612000, C340S666000, C340S621000, C318S642000, C318S648000, C073S045500, C073S001810
Reexamination Certificate
active
07102528
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.
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Bacon & Thomas
Endress & Hauser GmbH & Co. KG
Hofsass Jeffery
Previl Daniel
LandOfFree
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