4. Fluid handling
  5. Pressure modulating relays or followers
  6. With counter-balancing pressure feedback to the modulating...

Gerald F. Varnum

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Pneumatic controller

Fluid handling – Pressure modulating relays or followers – With counter-balancing pressure feedback to the modulating...
Patent

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Positioner having user-adjustable dynamic response

Motors: expansible chamber type – Working member position feedback to motive fluid control – With main valve position feedback to pilot valve
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Pressure sensor

Measuring and testing – Fluid pressure gauge – Vibration type
Patent

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Profile ID: LFUS-PAI-P-242433

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