Patent · US Expired

Moisture sensing device

US5391891A · kind A · utility

25Cited by

2References

20Claims

0Family size

Assignee

Leopold KOSTAL GmbH & Co. KG · DE

Inventors

Gerhard Wiegleb · Maintal, DE
Norbert Bendicks · Breckerfeld, DE
Berthold Esders · Schalksmühle, DE

Key dates

Filing date	Nov 24, 1992
Grant date	Feb 21, 1995
Priority date	—
Expiry date	Nov 24, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60S1/0833
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor device which registers the amount of moisture on a transparent screen. The sensor is connected to at least one light conducting element which is provided on one side with at least one beam emitter and on the other side with at least one beam receiver. The light conducting element is provided with a layer of reflecting material to enable multiple reflection of the beam issuing from the beam emitter.

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