Patent · US Active

Device for measuring the level of a liquid in a container with an ultrasonic transducer

US7861587B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

Hella KGaA Hück & Co. · DE

Inventors

Thomas Kück · Weyhe, DE
Heiko Dobrinski · Bremen, DE
Andreas Buhrdorf · Bremen, DE

Key dates

Filing date	Mar 14, 2006
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Jun 7, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01F23/2968
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a device for measuring the level of liquid in a container by means of an ultrasonic converter, comprising an ultrasonic converter which is disposed at a distance from the base such that it radiates towards the surface of the liquid and also towards a lower reflector. The ultrasonic converter is, preferably, integrated into a housing which has a large upper opening and a small lower opening. A cavity is arranged in the base of the device below the lower opening.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.