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:
Mar. 17, 2009
Filed:
Apr. 24, 2007
Applicants:
Fred Charles Sittler, Excelsior, MN (US);
Carl Raymond Gansen, Belle Plaine, MN (US);
Inventors:
Fred Charles Sittler, Excelsior, MN (US);
Carl Raymond Gansen, Belle Plaine, MN (US);
Assignee:
Rosemount Inc., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A capacitive pressure sensor is formed with sensor body and diaphragm components made of near net shapeable sintered ceramic. In one configuration, the differential pressure sensor has two sintered ceramic cell halves with an internal sintered ceramic diaphragm captured between the two cell halves. In another configuration, two side-by-side sintered ceramic cell halves have individual sintered ceramic diaphragms, and the chambers of the two cell halves are connected by metal tubing.