Methods, apparatus and articles of manufacture to test safety instrumented system solenoids

US8996328B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8996328-B2
Application numberUS-64869509-A
CountryUS
Kind codeB2
Filing dateDec 29, 2009
Priority dateDec 29, 2009
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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Example methods, apparatus and articles of manufacture to test safety instrumented system (SIS) solenoids are disclosed. A disclosed valve position control apparatus includes a relay to control a state of a solenoid and a valve positioner including a transmitter to transmit a solenoid test signal to the relay, electrical contacts to communicatively couple the solenoid test signal to the relay via one or more wires, and a solenoid tester to generate the solenoid test signal and to monitor a response of the solenoid when the solenoid test signal is transmitted to the relay to verify an operation of the solenoid.

First claim

Opening claim text (preview).

What is claimed is: 1. A valve position control apparatus comprising: a relay to control a state of a solenoid to be operatively coupled to a process control valve; and a valve positioner including: a transmitter to transmit a solenoid test signal to the relay; electrical contacts to provide the solenoid test signal to the relay via one or more wires; and a solenoid tester having a processor to generate the solenoid test signal and to monitor a response of the solenoid when…

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What does patent US8996328B2 cover?
Example methods, apparatus and articles of manufacture to test safety instrumented system (SIS) solenoids are disclosed. A disclosed valve position control apparatus includes a relay to control a state of a solenoid and a valve positioner including a transmitter to transmit a solenoid test signal to the relay, electrical contacts to communicatively couple the solenoid test signal to the relay v…
Who is the assignee on this patent?
Snowbarger Jimmie L, Fisher Controls Int
What technology area does this patent fall under?
Primary CPC classification G05B23/0256. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).