Patents Assigned to Valvcon Corporation
  • Rotary electric actuator with a mechanical spring return back-up
    Patent number: 6431317
    Abstract: A tri-modal—energy storage mode, fail-safe mode, and operating mode—fail-safe actuator with low overall power consumption and specifically low fail-safe power consumption due to energy storage pawling mechanisms. Stored energy is discharged at a controlled rate in fail-safe mode. The actuator's sequencing through its three modes is enabled by a dual-cam/clutch system which is powered separately from the operational (shaft control) system.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: August 13, 2002
    Assignee: Valvcon Corporation
    Inventor: Thomas Edward Coe