Invention Grant
- Patent Title: Method and apparatus for predicting lifetime of a solenoid coil
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Application No.: US14907545Application Date: 2014-08-01
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Publication No.: US09886835B2Publication Date: 2018-02-06
- Inventor: Bruce R. Penning , Bruce Rigsby
- Applicant: General Equipment and Manufacturing Company, Inc.
- Applicant Address: US NJ Florham Park
- Assignee: AUTOMATIC SWITCH COMPANY
- Current Assignee: AUTOMATIC SWITCH COMPANY
- Current Assignee Address: US NJ Florham Park
- Agency: Locke Lord LLP
- International Application: PCT/US2014/049339 WO 20140801
- International Announcement: WO2015/017747 WO 20150205
- Main IPC: G08B21/18
- IPC: G08B21/18 ; G05B23/02 ; G01R31/00
Abstract:
In a method for estimating a remaining lifetime of a solenoid coil of a valve controller operating in a process control system, a record of a duration of activation of the solenoid coil is maintained during operation of the solenoid coil. An operating temperature of the solenoid coil is determined. An estimate of the remaining lifetime of the solenoid coil is generated based on the duration of activation of the solenoid coil and the operating temperature of the solenoid coil.
Public/Granted literature
- US20160180686A1 METHOD AND APPARATUS FOR PREDICTING LIFETIME OF A SOLENOID COIL Public/Granted day:2016-06-23
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