Apparatus for determining and/or monitoring the filling...

Details Apparatus for determining and/or monitoring the filling... Apparatus for determining and/or monitoring the filling...

2006-07-31

2008-10-28

Williams, Hezron E. (Department: 2856)

Measuring and testing

Liquid level or depth gauge

C073S29000R

Reexamination Certificate

active

07441454

ABSTRACT:
The invention relates to a measuring device which determines the filling level by means of high-frequency measuring signals which are guided along a waveguide. The invention is based on the object of optimizing the waveguide. According to a preferred embodiment of the apparatus according to the invention, the waveguide is a wire cable which comprises a plurality of individual wires of a predetermined diameter which are twisted together.

REFERENCES:
patent: 4171609 (1979-10-01), Feese
patent: 4976509 (1990-12-01), Bachmann
patent: 6229476 (2001-05-01), Lutke
patent: 7159458 (2007-01-01), Reimelt et al.
patent: 44 04 745 (1995-08-01), None
patent: 0 875 738 (1998-04-01), None
Meyers Enzyklopadisches Lexikon, Bibliographisches Institut, Zurich 1973.

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