Invention Grant
- Patent Title: Control valve coil temperature controller
- Patent Title (中): 控制阀线圈温度控制器
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Application No.: US12686925Application Date: 2010-01-13
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Publication No.: US08339762B2Publication Date: 2012-12-25
- Inventor: Christopher North
- Applicant: Christopher North
- Applicant Address: US CO Woodland Park
- Assignee: Sturman Industries, Inc.
- Current Assignee: Sturman Industries, Inc.
- Current Assignee Address: US CO Woodland Park
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: G05D23/24
- IPC: G05D23/24

Abstract:
A method of actuator coil temperature control for actuators that are not continuously operated, wherein when an actuation current is not being applied to the actuator coil, a) sensing a parameter indicative of the resistance of the actuator coil as an indication of the temperature of the actuator coil, b) if the sensed parameter indicates the temperature of the actuator coil is below a first predetermined limit, then initiating a series of successive actuation current pulses to the actuator coil, each actuation current pulse being terminated before actuation of the actuator occurs, and c) periodically repeating a) and b).
Public/Granted literature
- US20100176759A1 Control Valve Coil Temperature Controller Public/Granted day:2010-07-15
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