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:
Apr. 13, 2010
Filed:
Aug. 19, 2008
Thomas Kopp, Wolfach, DE;
Thomas Kopp, Wolfach, DE;
Vega Grieshaber KG, Wolfach, DE;
Abstract
A pressure-measuring device has an initial pressure-measuring cell (') with a first thermal expansion coefficient (α), a first housing (), which is surrounded circumferentially by a second housing () having a second thermal expansion coefficient (α) which is greater than the first thermal expansion coefficient (α), and an O-ring, which is positioned between the pressure-measuring cell (′) and the second housing (), such that a third housing () is provided which circumferentially encloses both the pressure-measuring cell (′) and the second housing, () and which has a third thermal expansion coefficient (α) that is less than or equal to the first thermal expansion coefficient (α).