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:
Feb. 11, 2003
Filed:
Aug. 14, 2001
Frank Hegner, Lörrach, DE;
Karl Flögel, Schopfheim, DE;
Karlheinz Banholzer, Hausen, DE;
Bernd Rosskopf, Hausen, DE;
Endress + Hauser GmbH + Co., Maulburg, DE;
Abstract
A pressure sensor is provided having a housing, a process connection which is connected to the housing and serves to feed a medium whose pressure (p) is to be measured to a membrane which his arranged in the housing, said membrane, in operation, undergoing a deflection which depends on the pressure (p) which is to be measured, which pressure sensor can have a seal made of a chemically highly resistant material and in which the membrane can consist either of ceramic or metal, which pressure sensor has a seal which seals a gap found between the housing and the process connection and/or the membrane, bears directly against the gap and covers the gap, and which is clamped between the housing and the membrane, and which pressure sensor has a spring which is two-legged in cross section, whose first and second legs enclose an acute angle, whose first leg has a leg surface which faces away from the second leg, rests on a supporting surface and is connected fixedly to the latter, and whose second leg has a leg surface which faces away from the first leg, bears in a planar manner against the seal and exerts a spring force on the seal, which spring force acts in the direction of the gap.