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. 23, 2008
Filed:
Jul. 10, 2006
John Schulte, Eden Prairie, MN (US);
Mark Romo, Eden Prairie, MN (US);
Stanley E. Rud, Jr., Victoria, MN (US);
John Schulte, Eden Prairie, MN (US);
Mark Romo, Eden Prairie, MN (US);
Stanley E. Rud, Jr., Victoria, MN (US);
Rosemount Inc., Eden Prairie, MN (US);
Abstract
Reliability and accuracy in a pressure measurement transmitter are provided by employing a plurality of absolute or gauge pressure sensors operating in conjunction with a differential pressure sensor. A method is also provided to perform diagnostics based upon the readings of the three pressure sensors. Further, should one of the three pressure sensors fail, a reasonable estimate of process pressure being measured by the failed sensor can be generated based upon the remaining two sensors.