Patent №
US 7,593,802
Granted
2009-09-22
Filed 2006
Owner
FISHER CONTROLS INTERNATIONAL LLC
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10595116
A lead-lag input filter is connected ahead of a positioner feedback loop having one or more valve accessories, such as a volume booster or a QEV, to overcome slow dynamics experienced by the accessories when receiving low amplitude change control or set point signals. A user interface is connected to the lead-lag input filter and enables an operator or other control personnel to view and change the operating characteristics of the lead-lag input filter to thereby provide the control loop with any of a number of desired response characteristics.
AI classification
Ownership
FISHER CONTROLS INTERNATIONAL LLC
assignment · 173750763
Assignors
JUNK, KENNETH W., LATWESEN, ANNETTE L.
On an employer assignment, the assignors are typically the inventors.