Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
Vorrichtung zum Anzeigen der Schichthoehe in geschlossenen Behaeltern (Bunkern) mit fluessigem, staubfoermigem oder feinkoernigem Gut, bestehend aus einem schwin-genden Gebilde, dessen Schwingung bei einer bestimmten Schichthoehe gedaempft wird