Patents Assigned to Cal-Scan Services Ltd.
  • Patent number: 8783648
    Abstract: A system and method for testing a valve actuator is provided, where an electrical motor is operatively connected to the valve actuator operatively connected to the valve. The system can include a main motor driver connecting the electrical motor to a primary power source, a first sensor to monitor the primary power source, a second sensor to monitor the flow of current to the electrical motor, a third sensor to monitor the angular rotation of the valve, and an emergency shut down (“ESD”) controller to operate the main motor driver in the event of an alarm condition to actuate the valve to a fail-safe position. The method includes the steps of providing the system, actuating the valve, monitoring the rotation of the valve and generating an alarm if the valve does not rotate in response to the step to actuate it.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: July 22, 2014
    Assignee: Cal-Scan Services Ltd.
    Inventors: Garth Steven Hanson, Thomas Joseph MacArthur, Henri Richard Tessier
  • Publication number: 20120175536
    Abstract: A system and method for testing a valve actuator is provided, where an electrical motor is operatively connected to the valve actuator operatively connected to the valve. The system can include a main motor driver connecting the electrical motor to a primary power source, a first sensor to monitor the primary power source, a second sensor to monitor the flow of current to the electrical motor, a third sensor to monitor the angular rotation of the valve, and an emergency shut down (“ESD”) controller to operate the main motor driver in the event of an alarm condition to actuate the valve to a fail-safe position. The method includes the steps of providing the system, actuating the valve, monitoring the rotation of the valve and generating an alarm if the valve does not rotate in response to the step to actuate it.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 12, 2012
    Applicant: Cal-Scan Services Ltd.
    Inventors: Garth Steven Hanson, Thomas Joseph MacArthur, Henri Richard Tessier