Patent · US Active

Fill level sensor for detecting the fill level of a liquid in a container

US9417113B2 · kind B2 · utility

2Cited by

2References

12Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Wighard Jäger · Spardorf, DE
Karl-Friedrich Pfeiffer · Erlangen, DE
Claus Weber · Zirndorf, DE

Key dates

Filing date	Dec 6, 2012
Grant date	Aug 16, 2016
Priority date	—
Expiry date	May 9, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16N19/003
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A fill level sensor for detecting the fill level of a liquid in a container includes an ultrasonic transceiver, an inner tube for arrangement inside the container, the inner tube being arranged above the ultrasonic transceiver such that a liquid present in the container forms a liquid column in the inner tube the level of which can be detected by the ultrasonic transceiver, an outer tube surrounding the inner tube, and a cap which covers the inner tube and the outer tube toward the top. The cap has an inner tubular section adjoining the inner tube, an outer tubular section adjoining the outer tube, an inner vent opening for the inner tubular section and an outer vent opening for the outer tubular section.

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