Measuring and testing – Liquid level or depth gauge
Reexamination Certificate
2008-07-22
2008-07-22
Williams, Hezron E. (Department: 2856)
Measuring and testing
Liquid level or depth gauge
C073S866500
Reexamination Certificate
active
10980853
ABSTRACT:
The present invention relates to a guide-through assembly (4) for a filling level sensor working according to the principle of delay measurement of guided electromagnetic waves or for a capacitive filling level sensor, which for sealing the interior of the vessel against the interior of the sensor has no elastomeric sealing materials and in particular no elastomeric o-rings seals. This can be ensured by precisely machining the components which are essentially concentrically arranged in the guide-through assembly (4) on their circumferential surfaces (10, 11), so that in an assembled state the components arranged in the guide-through assembly (4), such as the interior conductor (7) and the dielectric materials (9, 12, 14) surrounding the interior conductor (7), contact each other at their mutually adjacent circumferential surfaces (11) in a sealing and positive engagement, so that additional sealing elements are not needed.
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Bellamy Tamiko D
Schwegman, Lundberg and Woessner P.A.
VEGA Grieshaber KG
Williams Hezron E.
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