Float for displaying a fill level

US8881589B2 · kind B2 · utility

Assignee

• KROHNE Messtechnik GmbH · DE

Inventors

• Michael Vogt · Bochum, DE
• Uwe Wegemann · Sprockhövel, DE

Key dates

• Filing date: Apr 10, 2012
• Grant date: Nov 11, 2014
• Expiry date: Dec 29, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F23/72
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A float for displaying the fill level of a medium (3) in a container (2), wherein the float (1), in the intended use, is guided by the wall of the container (2, 4) and is suitable for reflecting electromagnetic waves emitted from a transmitter (5) toward a receiver (6). The float has improved electromagnetic wave reflecting characteristics regardless of whether or not the float is tilted in that, in the intended use, at least the end of the float facing the transmitter (5) is a reflector (20) for reflecting electromagnetic waves to the receiver (6) and that a field attenuation structure (8) is located behind the reflector (20) from the perspective of the transmitter (5) in such a manner that electromagnetic waves interacting with the field attenuation structure (8) are attenuated.