Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Reexamination Certificate
2005-08-30
2005-08-30
Bastianelli, John (Department: 3751)
Valves and valve actuation
Electrically actuated valve
Remote or follow-up control system for electrical actuator
C251S129110, C318S128000, C318S129000
Reexamination Certificate
active
06935611
ABSTRACT:
A motor control device for a flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage, a valve element that controls a flow of a fluid which passes through the opening part, a motor which includes a rotor and a stator that relatively moves the valve element with respect to the opening part and a drive control section by which the motor is rotationally driven and controlled. Drive pulses are outputted from the drive control section for rotationally driving the rotor of the motor and a stop pulse is outputted from the drive control section and set to be a period width longer than that of the drive pulse for stopping the rotor of the motor at a prescribed position. The stop pulse is applied to the motor and the rotor stops at the prescribed position by a magnetic detent torque between the rotor and the stator.
REFERENCES:
patent: 4318018 (1982-03-01), Kennedy
patent: 4486697 (1984-12-01), Diefenbach et al.
patent: 4812691 (1989-03-01), Bertram et al.
patent: 5036886 (1991-08-01), Olsen et al.
patent: 5337030 (1994-08-01), Mohler
patent: 6069466 (2000-05-01), Noritake et al.
patent: 6756871 (2004-06-01), Suzuki et al.
patent: 2001-346399 (2001-12-01), None
Noritake Seiichiro
Wada Ryuhei
Bastianelli John
Hogan & Hartson LLP
Sankyo Seiki Mfg. Co. Ltd.
LandOfFree
Motor control device for flow control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor control device for flow control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor control device for flow control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3512189