Patent · US Expired

Pressure sensor having metallic diaphragm seal mount

US6715356B2 · kind B2 · utility

9Cited by

8References

6Claims

0Family size

Inventors

Peter Gerst · Weil am Rhein, DE
Karlheinz Banholzer · Eschborn, DE
Karl Flögel · Schopfheim, DE
Thomas Uehlin · Schopfheim, DE
Frank Hegner · Bad Kötzting, DE
Elke Schmidt · Bad Säckingen, DE
Ulfert Drewes · Bad Hersfeld, DE
Rainer Martin · Bochum, DE

Key dates

Filing date	Dec 13, 2000
Grant date	Apr 6, 2004
Priority date	—
Expiry date	Dec 13, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01L9/0075
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pressure sensor that is particularly suitable for the food industry and the measuring accuracy of which is stable over a long time, having a diaphragm seal with a separating diaphragm on which a pressure to be measured acts and having a ceramic measuring cell which is connected to the diaphragm seal exclusively by inorganic materials, is provided, in which sensor the separating diaphragm and all further sensor components coming into contact during measurement with a medium of which the pressure is to be measured are metallic.

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