The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2005
Filed:
Jun. 23, 2004
Franz-josef Lohmeier, Miltenberg, DE;
Joachim Ballmann, Amorbach, DE;
Andreas Trützler, Grossheubach, DE;
Peter Fürst, Burgstadt, DE;
Uwe Vonau, Schwabach, DE;
Jurgen Pleyer, Stockstadt, DE;
Niki Speier, Frankisch-Grumbach, DE;
Franz-Josef Lohmeier, Miltenberg, DE;
Joachim Ballmann, Amorbach, DE;
Andreas Trützler, Grossheubach, DE;
Peter Fürst, Burgstadt, DE;
Uwe Vonau, Schwabach, DE;
Jurgen Pleyer, Stockstadt, DE;
Niki Speier, Frankisch-Grumbach, DE;
WIKA Alexander Wiegand GmbH & Co. KG, Klingenberg, DE;
Abstract
The invention relates to a pressure sensor comprising a sensor element () having a flat membrane () which is transformed at its edge into a hollow-cylindrical ring () so that a central recess () is provided at the lower side () of the membrane (). On the upper side () of the membrane () a resistance arrangement consisting of electric resistors is disposed. A sleeve () projects into the recess () and supports a first elastomeric sealing ring () which is tightly arranged at the circumferential area of the recess (). Furthermore the sleeve () supports a second elastomeric sealing ring () which serves for sealing at a feeding tube for pressure fluid formed in a component part to which the pressure sensor is mountable. The sleeve () is rigidly connected to a disk () which is attached with its outer edge () to a casing () enclosing the sensor element (). Mechanical forces occurring during and after assembly of the pressure sensor to the component part are introduced into the casing () via the sleeve () and the disk () so that the sensor element () is kept free from mechanical distortions which might entail an undesired deformation of the membrane () and consequently a falsification of the measuring signal.