Process pressure transmitter with seal having diamond like carbon coating

    公开(公告)号:US10514311B2

    公开(公告)日:2019-12-24

    申请号:US14483301

    申请日:2014-09-11

    Applicant: Rosemount Inc.

    Abstract: A process pressure transmitter system includes a process pressure transmitter housing, a process pressure sensor in the process pressure transmitter housing, a flange face in the process pressure transmitter housing and an isolation diaphragm on the flange face. A first capillary passageway carries a first fill fluid from the isolation diaphragm to the process pressure sensor. A process seal diaphragm couples to a process fluid of the industrial process. A second capillary passageway carries a second fill fluid from the process seal diaphragm to the isolation diaphragm. A diamond like carbon (DLC) coating coats the process seal diaphragm.

    PROCESS TRANSMITTER HAVING A ROTATABLE COUPLING

    公开(公告)号:US20190063648A1

    公开(公告)日:2019-02-28

    申请号:US15735334

    申请日:2017-08-29

    Applicant: Rosemount Inc.

    Inventor: Fang Chen

    Abstract: An industrial process transmitter includes a main housing, a sensor body, and a flange member. The main housing contains transmitter circuitry and includes a first threaded portion. The sensor body includes a process sensor and a second threaded portion in threaded engagement with the first threaded portion. One of the first and second threaded portions includes a threaded cylindrical projection, and the other includes a threaded cylindrical bore. The flange member is received within a groove of the projection. Movement of the sensor body relative to the housing along an axis of the bore is restricted to an axial distance through engagement between the flange and the first or second threaded portion that includes the threaded cylindrical bore, and engagement between the main housing and the sensor body. Rotation of the sensor body relative to the housing about the axis is limited by the axial distance.

    PRESSURE SENSOR MODULE FOR HIGH WORKING PRESSURE APPLICATIONS

    公开(公告)号:US20180364124A1

    公开(公告)日:2018-12-20

    申请号:US15625376

    申请日:2017-06-16

    Applicant: Rosemount Inc.

    Abstract: A differential pressure sensor module includes a base having a pair of process fluid pressure inlets and defining a sensor chamber having a sensor chamber inlet. A differential pressure sensor is disposed within the sensor chamber and has an inlet configured to receive a first pressure and provide a signal indicative of a difference between the first pressure and a sensor chamber pressure external to the differential pressure sensor within the sensor chamber. A pair of isolation diaphragms are provided in substantially the same plane, with each isolation diaphragm sealing a respective process fluid pressure inlet. A first fluid passageway is operably coupled to one of the isolation diaphragms and the inlet of the differential pressure sensor. A second fluid passageway is operably coupled to the other of the isolation diaphragms and to the sensor chamber inlet. An overpressure protection feature is operably coupled to the sensor chamber, the first fluid passageway and the second fluid passageway.

    PROCESS PRESSURE TRANSMITTER WITH POLYMER SEAL

    公开(公告)号:US20180245998A1

    公开(公告)日:2018-08-30

    申请号:US15500578

    申请日:2016-09-30

    Applicant: Rosemount Inc.

    Inventor: Baogang Li

    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.

    Fluid filled elongate pressure sensor

    公开(公告)号:US10060814B2

    公开(公告)日:2018-08-28

    申请号:US15070318

    申请日:2016-03-15

    Applicant: Rosemount Inc.

    CPC classification number: G01L9/0051 G01B7/18 G01L9/0002 G01L19/0046 G01L19/04

    Abstract: A pressure sensor includes an elongate body which deforms in response to an applied pressure having a cavity formed therein. An isolation diaphragm seals the cavity from a process fluid and is configured to deflect in response to applied process pressure from the process fluid. An isolation fill fluid in the cavity applies pressure to the elongate body in response to deflection of the isolation diaphragm thereby causing deflection of the elongate body. A deformation sensor is coupled to the elongate body and provides a sensor output in response to deformation of the elongate body which is indicative of the process pressure.

    Flow measurement system for single-use containers

    公开(公告)号:US09909909B2

    公开(公告)日:2018-03-06

    申请号:US15072128

    申请日:2016-03-16

    Applicant: Rosemount Inc.

    CPC classification number: G01F1/44

    Abstract: A venturi flowmeter for connection to single-use containers is provided. The venturi flowmeter includes a meter body formed of a polymer and configured to allow fluid flow therethrough. A first annular diaphragm is mounted proximate an inner surface of the meter body has a first internal diameter. A second annular diaphragm is mounted proximate an inner surface of the meter body has a second internal diameter different from the first internal diameter.

Patent Agency Ranking