Corrosion resistant isolator assembly for process devices

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United States of America Patent

PATENT NO 8915140
SERIAL NO

13440163

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Abstract

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A process device has a process seal for coupling to an industrial process. The process device includes a process device body having an isolation cavity and an isolation passageway extending from the isolation cavity to a pressure sensor. The isolation cavity and isolation passageway filled with an isolation fluid. An isolation diaphragm is positioned to isolate the isolation cavity from process fluid. The isolation diaphragm has a process fluid side and an isolation fluid side. A weld ring is positioned around a periphery of the process fluid side of the isolation diaphragm. The weld ring is formed of a first material compatible with the isolation diaphragm and a second material compatible with the process device body. A weld secures the weld ring to the process device body.

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Patent Owner(s)

  • ROSEMOUNT INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Klosinski, Andrew J Waconia, US 11 164
Linse, Vonne D Columbus, US 6 42
Romo, Mark G Eden Prairie, US 18 568

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