Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Reexamination Certificate
2005-07-08
2008-07-01
Sherry, Michael J (Department: 2836)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
C310S316030
Reexamination Certificate
active
07394639
ABSTRACT:
A process control apparatus including an actuator configured to effect changes in an industrial process, a power supply, a plurality of current switches coupled between the actuator and the power supply and a controller coupled to the plurality of current switches. The controller is configured to selectively close one or more of the plurality of current switches so as to provide a selectable level of current from the power supply to the actuator. In variations, a plurality of discharge switches are coupled to the actuator and the controller is configured to selectively close the discharge switches so as to provide a selectable level of charge to discharge from the actuator.
REFERENCES:
patent: 5092360 (1992-03-01), Watanabe et al.
patent: 5589723 (1996-12-01), Yoshida et al.
patent: 6113695 (2000-09-01), Fujimoto
patent: 6376966 (2002-04-01), Gallmeyer et al.
patent: 6704667 (2004-03-01), Wei et al.
patent: 6766260 (2004-07-01), Ambrosina et al.
patent: 2002/0033644 (2002-03-01), Takamura et al.
patent: 2003/0127139 (2003-07-01), Gill
patent: 2004/0261705 (2004-12-01), Kang
patent: 2006/0098036 (2006-05-01), Gardner
patent: 2007/0107783 (2007-05-01), Lull et al.
Finley Kenneth
Lee Brian
Zolock Michael J.
Advanced Energy Industries Inc.
Bauer Scott
LandOfFree
System and method for driving an industrial 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 System and method for driving an industrial control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for driving an industrial control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3973009