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:
Apr. 16, 2013
Filed:
Dec. 01, 2010
Applicant:
Bruce Frederick Grumstrup, Marshalltown, IA (US);
Inventor:
Bruce Frederick Grumstrup, Marshalltown, IA (US);
Assignee:
Fisher Controls International LLC, Marshalltown, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention comprises methods for testing the valve seating integrity of a valve. The valve components that determine valve seating integrity are typically a valve seat and a valve closing element that engages the valve seat to close the valve. Examples of the test method described herein respectively test valve seating integrity during opening of the valve and during closing of the valve, and do so in all instances without interrupting the operation of a process control system that includes the valve, without isolating the valve, and without relying on user analysis.