Source: http://www.google.com/patents/US7940189?dq=6679960
Timestamp: 2013-12-20 14:18:03
Document Index: 266057498

Matched Legal Cases: ['art 2', 'art 2', 'art 3', 'art 3', 'Application No. 2005800100704', 'art 2', 'art 2', 'art 1', 'art 1', 'application No. 07838659', 'Application No. 06815490', 'art 4', 'art 4', 'application No. 200680036037', 'Application No. 200680036037']

Patent US7940189 - Leak detector for process valve - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA leak detection system is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate is coupled to the valve in the pipe in-line with the fluid flow. A sensor couples to the flow and provides a signature...http://www.google.com/patents/US7940189?utm_source=gb-gplus-sharePatent US7940189 - Leak detector for process valveAdvanced Patent SearchPublication numberUS7940189 B2Publication typeGrantApplication numberUS 12/066,431PCT numberPCT/US2006/037535Publication dateMay 10, 2011Filing dateSep 26, 2006Priority dateSep 29, 2005Also published asCA2623096A1, CN101278180A, CN101278180B, EP1931962A2, US20070068225, US20090303057, WO2007041111A2, WO2007041111A3Publication number066431, 12066431, PCT/2006/37535, PCT/US/2006/037535, PCT/US/2006/37535, PCT/US/6/037535, PCT/US/6/37535, PCT/US2006/037535, PCT/US2006/37535, PCT/US2006037535, PCT/US200637535, PCT/US6/037535, PCT/US6/37535, PCT/US6037535, PCT/US637535, US 7940189 B2, US 7940189B2, US-B2-7940189, US7940189 B2, US7940189B2InventorsGregory C. BrownOriginal AssigneeRosemount Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (106), Non-Patent Citations (153), Referenced by (6), Classifications (9), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetLeak detector for process valveUS 7940189 B2Abstract A leak detection system is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate is coupled to the valve in the pipe in-line with the fluid flow. A sensor couples to the flow and provides a signature output. A leak detector is coupled to the sensor and adapted to detect a leak through the valve based upon the signature output.
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(1997).Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8265794 *Sep 24, 2008Sep 11, 2012Westlock Controls CorporationKnowledge based valve control methodUS8312892 *Jul 2, 2009Nov 20, 2012Fisher Controls International LlcDevice and method for determining a failure mode of a pneumatic control valve assemblyUS20090088906 *Sep 24, 2008Apr 2, 2009Westlock Controls CorporationKnowledge based valve control methodUS20110001070 *Jul 2, 2009Jan 6, 2011Fisher Controls International LlcDevice and Method for Determining a Failure Mode of a Pneumatic Control Valve AssemblyUS20110240891 *Mar 22, 2011Oct 6, 2011Yamatake CorporationPositionerUS20110245982 *Mar 22, 2011Oct 6, 2011Yamatake CorporationPositioner* Cited by examinerClassifications U.S. Classification340/621, 340/605International ClassificationG08B21/00Cooperative ClassificationG01M3/2876, G01M3/24, F16K37/0075European ClassificationG01M3/28E, G01M3/24, F16K37/00GLegal EventsDateCodeEventDescriptionSep 9, 2008ASAssignmentOwner name: ROSEMOUNT INC., MINNESOTAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BROWN, GREGORY C.;REEL/FRAME:021500/0889Effective date: 20080902RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google