Another Patent for Hartfiel.

Posted on: February 22nd, 2011

We just received notice that our lastest patent application has been officially approved. This makes patent number 3 for Hartfiel Automation; all thanks to our own Steve Laumer and Gary Lagro.

Their invention “relates to control systems for hydraulic actuators, and more particularly, to the control of hydraulic actuators at certain positions in their range of travel.”

Abstract: A system for controlling motion of a hydraulic actuator during a portion of its range of motion is described, including a sensor on the hydraulic actuator for providing a signal indicating that the actuator is near a portion of its range of motion, and a pneumatic control valve that is configured to selectively modify a pressurized air control signal to in turn restrict flow of pressurized hydraulic fluid to the hydraulic actuator. The hydraulic actuator control system further includes an electronic controller for controlling the pneumatic control valve in response to a signal from the sensor. The hydraulic actuator control system thereby slows the motion of the hydraulic actuator near the portion of its range of motion.

Read All About the Patent

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