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:
Nov. 14, 2017
Filed:
Feb. 10, 2012
Andrea Berlinger, Baden-Baden, DE;
Ulfert Drewes, Mullheim, DE;
Andreas Rossberg, Bad Sackingen, DE;
Elke Schmidt, Bad Sackingen, DE;
Thomas Uehlin, Schopfheim, DE;
Andrea Berlinger, Baden-Baden, DE;
Ulfert Drewes, Mullheim, DE;
Andreas Rossberg, Bad Sackingen, DE;
Elke Schmidt, Bad Sackingen, DE;
Thomas Uehlin, Schopfheim, DE;
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A method for manufacturing a pressure measuring cell, which has a ceramic platform and a ceramic measuring membrane, wherein the measuring membrane is joined with the platform pressure tightly by an active hard solder, or braze, wherein the method includes: providing the platform, the measuring membrane and the active hard solder, or braze, positioning the active hard solder, or braze, between the platform and the measuring membrane; melting the active hard solder, or braze, by irradiating the active hard solder, or braze, by a laser, wherein the irradiating of the active hard solder, or braze, occurs through the measuring membrane; and letting the active hard solder, or braze, solidify by cooling.