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. 26, 2019
Filed:
May. 16, 2016
Applicant:
Dresser, Inc., Addison, TX (US);
Inventor:
Sandro Esposito, Katy, TX (US);
Assignee:
Dresser, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 21/08 (2006.01); F15B 5/00 (2006.01); G05B 19/43 (2006.01); F15B 15/20 (2006.01);
U.S. Cl.
CPC ...
F15B 21/08 (2013.01); F15B 5/006 (2013.01); F15B 15/202 (2013.01); G05B 19/43 (2013.01); Y10T 137/7761 (2015.04);
Abstract
A valve positioner that can maintain operation of the control valve despite failures in one or more components. The valve positioner may reduce downtime by allowing in-situ repair to occur on the valve positioner. The valve positioner may incorporate a by-pass component, which can utilize control input signals (e.g., a 4-20 mA signal) to energize one or more components (e.g., a current-to-pressure converter) to cause the control valve to modulate fluid flow without the digital microprocessor and/or related components.