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:
Nov. 15, 2022
Filed:
Aug. 03, 2020
Applicant:
Fisher Controls International Llc, Marshalltown, IA (US);
Inventors:
Joseph Frank DeMonte, Marshalltown, IA (US);
William Sean Raymond, Marshalltown, IA (US);
Assignee:
Fisher Controls International LLC, Marshalltown, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 3/00 (2006.01); G01L 3/10 (2006.01); G08B 21/18 (2006.01);
U.S. Cl.
CPC ...
G01L 3/108 (2013.01); G08B 21/18 (2013.01);
Abstract
Methods and apparatus for pressure-based direct measurement of a final control element variable are disclosed. An example method includes receiving a signal from a first sensor mounted on a shaft of a valve, converting the signal to a pressure, routing the pressure to a second sensor of a controller operatively coupled to a pneumatic actuator, the pneumatic actuator operatively coupled to the shaft, and determining, by the controller, a first torque on the shaft based on the pressure.