Invention Grant
- Patent Title: Process pressure transmitter with polymer seal
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Application No.: US15500578Application Date: 2016-09-30
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Publication No.: US10378984B2Publication Date: 2019-08-13
- Inventor: Baogang Li
- Applicant: Rosemount Inc.
- Applicant Address: US MN Shakopee
- Assignee: ROSEMOUNT INC.
- Current Assignee: ROSEMOUNT INC.
- Current Assignee Address: US MN Shakopee
- Agency: Westman, Champlin & Koehler, P.A.
- International Application: PCT/CN2016/100974 WO 20160930
- International Announcement: WO2018/058487 WO 20180405
- Main IPC: G01L9/00
- IPC: G01L9/00 ; G01L19/00 ; G01L19/14 ; G01L19/06

Abstract:
A process pressure transmitter system includes a process pressure transmitter housing and a process pressure sensor in the process pressure transmitter housing. A metal flange is configured to mount to a process vessel which carries a process fluid. An isolation diaphragm attaches to the metal flange and is exposed to the process fluid through an opening in the process vessel. The isolation diaphragm comprises a polymer diaphragm bonded to a metal face of the metal flange. A capillary passageway carries a fill fluid from the isolation diaphragm to thereby convey a process pressure to the pressure sensor.
Public/Granted literature
- US20180245998A1 PROCESS PRESSURE TRANSMITTER WITH POLYMER SEAL Public/Granted day:2018-08-30
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