Patent · US Active

Pressure sensor including replaceable process seal for improved measurement accuracy

US11300469B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Kristine Bedner · Schopfheim, DE
Michael Hugel · Lörrach, DE
Thomas Uehlin · Schopfheim, DE
Miriam Volz · Steinen, DE

Key dates

Filing date	Sep 12, 2018
Grant date	Apr 12, 2022
Priority date	—
Expiry date	Nov 2, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01L19/0627
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present disclosure discloses process seals having a form retaining core and a coating of a thermoplastic sealing material for pressure sensors. The process seals can be replaced in simple manner, especially essentially without loss of measurement accuracy. The process seals are characterized by features including that they are pre-aged in a pre-aging method performable in a reproducible manner and insertable in the pressure sensor as replaceable components, wherein the process seals were clamped during the pre-aging method in a clamping apparatus exerting a clamping force thereon, wherein the clamping apparatus has a clamping geometry surrounding the process seal clamped therein, which is essentially identical to the clamping geometry surrounding the process seal in the pressure sensor.

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