Patent ID: 9395228
Filing Date: 2016-07-19
CPC Classification: G01F

Claim Text:
1. A device for measuring the level of a liquid within a container, in particular the level of liquid gas, comprising a housing, a piezoelectric element adapted for generating vibrations when energized, a coupling pad bonded to the piezoelectric element for transmitting the vibrations to a surface of the container, and a non-tilting element which surrounds the coupling pad, the device being a handheld device wherein the coupling pad is mounted displaceably in the housing and cooperates with an electric switch for automatically triggering a measurement when said device is being pressed against a container, said coupling pad protruding over a forward surface of said non-tilting element such that a measurement can only be triggered when said measuring device is pressed against a surface of said container in an orientation which is generally perpendicular to said surface.