Patents by Inventor David Matthew Strei
David Matthew Strei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11153985Abstract: An electronics package includes a platform and a board mounted to the platform, the board having electronics mounted thereon. A feedthrough pin passes through and is hermetically sealed to a feedthrough body and is wire bonded to the board. A cover is bonded to and surrounds the exterior surface of the feedthrough body to produce a hermetically sealed chamber that houses the platform and the board.Type: GrantFiled: June 29, 2017Date of Patent: October 19, 2021Assignee: ROSEMOUNT INC.Inventors: David Alexander Andrew, David Matthew Strei, James Walters, III, David Cutter
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Patent number: 10612365Abstract: A pressure sensor capsule includes a capsule body, an isolator, a pressure sensor, and a fluid fill pathway. The capsule body defines a process chamber. The isolator is supported by the capsule body and is exposed to the process chamber. The pressure sensor produces a sensor output that is indicative of a pressure within an interior chamber, which is isolated from the process chamber by the isolator. The fluid fill pathway extends from the process chamber to the interior chamber.Type: GrantFiled: September 29, 2017Date of Patent: April 7, 2020Assignee: ROSEMOUNT INC.Inventors: David Matthew Strei, David Alexander Andrew, Nicholas John Haywood
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Patent number: 10598559Abstract: A pressure sensor assembly for use in sensing a pressure of a process fluid in a high temperature environment includes an elongate sensor housing configured to be exposed to the process fluid and having a cavity formed therein. A pressure sensor is positioned in the cavity of the elongate sensor housing. The pressure sensor has at least one diaphragm that deflects in response to applied pressure and includes an electrical component having an electrical property which changes as a function of deflection of the at least one diaphragm which is indicative of applied pressure. A flexible membrane in contact with the at least one diaphragm is disposed to seal at least a portion of the cavity of the sensor housing from the process fluid and flexes in response to pressure applied by the process fluid to thereby cause deflection of the at least one diaphragm.Type: GrantFiled: June 29, 2017Date of Patent: March 24, 2020Assignee: ROSEMOUNT INC.Inventors: David Alexander Andrew, David Matthew Strei
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Publication number: 20190100991Abstract: A pressure sensor capsule includes a capsule body, an isolator, a pressure sensor, and a fluid fill pathway. The capsule body defines a process chamber. The isolator is supported by the capsule body and is exposed to the process chamber. The pressure sensor produces a sensor output that is indicative of a pressure within an interior chamber, which is isolated from the process chamber by the isolator. The fluid fill pathway extends from the process chamber to the interior chamber.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: David Matthew Strei, David Alexander Andrew, Nicholas John Haywood
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Publication number: 20190008062Abstract: An electronics package includes a platform and a board mounted to the platform, the board having electronics mounted thereon. A feedthrough pin passes through and is hermetically sealed to a feedthrough body and is wire bonded to the board. A cover is bonded to and surrounds the exterior surface of the feedthrough body to produce a hermetically sealed chamber that houses the platform and the board.Type: ApplicationFiled: June 29, 2017Publication date: January 3, 2019Inventors: David Alexander Andrew, David Matthew Strei, James Walters, III, David Cutter
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Publication number: 20190003914Abstract: A pressure sensor assembly for use in sensing a pressure of a process fluid in a high temperature environment includes an elongate sensor housing configured to be exposed to the process fluid and having a cavity formed therein. A pressure sensor is positioned in the cavity of the elongate sensor housing. The pressure sensor has at least one diaphragm that deflects in response to applied pressure and includes an electrical component having an electrical property which changes as a function of deflection of the at least one diaphragm which is indicative of applied pressure. A flexible membrane in contact with the at least one diaphragm is disposed to seal at least a portion of the cavity of the sensor housing from the process fluid and flexes in response to pressure applied by the process fluid to thereby cause deflection of the at least one diaphragm.Type: ApplicationFiled: June 29, 2017Publication date: January 3, 2019Inventors: David Alexander Andrew, David Matthew Strei
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Patent number: 9755129Abstract: Electrical power is produced by a first process component, a first heat pipe formed in part by a first cavity within the first process component, and a thermoelectric generator assembly. The thermoelectric generator assembly is thermally coupled on one side to a heat sink and on the other side to the first heat pipe. The first process component is in direct contact with a first process fluid and the first cavity is proximate the first process fluid. The thermoelectric generator assembly produces electrical power.Type: GrantFiled: August 15, 2014Date of Patent: September 5, 2017Assignee: Rosemount Inc.Inventors: David Matthew Strei, Kelly Michael Orth
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Patent number: 9674976Abstract: A wireless process communication adapter for field devices is provided. The adapter includes a metal housing having a first end and a second end. A chamber is defined between the first and second ends. A radio-frequency transparent radome is coupled to the first end. The second end has a field device coupling configured to attach to a field device. At least one circuit board is disposed within the chamber. The circuit board supports at least wireless process communication circuitry. A plurality of wires is coupled to the at least one circuit board and extends through the field device coupling. A silicone potting fills substantially all volume within the chamber not occupied by the at least one circuit board and wireless process communication circuitry.Type: GrantFiled: August 27, 2010Date of Patent: June 6, 2017Assignee: Rosemount Inc.Inventors: David Matthew Strei, Joel David Vanderaa
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Patent number: 9234776Abstract: A multivariable process fluid transmitter module includes a base having a pair of recesses. A pair of pedestals is provided with each pedestal being disposed in a respective recess and being coupled to a respective isolation diaphragm. At least one line pressure assembly is mounted proximate one of the pedestals. The at least one line pressure assembly couples a respective isolation diaphragm to a line pressure sensor. A differential pressure sensor has a sensing diaphragm fluidically coupled to the isolation diaphragms by a fill fluid. At least one additional sensor is disposed to sense a temperature of a process fluid. Circuitry is coupled to the line pressure sensor, the differential pressure sensor, and the at least one additional sensor to measure an electrical characteristic of each of the line pressure sensor, the differential pressure sensor, and the at least one additional sensor.Type: GrantFiled: September 26, 2013Date of Patent: January 12, 2016Assignee: Rosemount Inc.Inventor: David Matthew Strei
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Patent number: 9157824Abstract: A process fluid pressure sensing system includes a process fluid pressure transmitter and a process manifold. The process fluid pressure transmitter has first and second pressure inlets and is configured to obtain a measurement relative to pressures applied at the first and second pressure inlets and provide a process variable output based on the measurement. The process manifold is operably coupled to a process fluid and has first and second pressure outlets. A first high-pressure coupling joins the first pressure outlet of the process manifold to the first pressure inlet of the process fluid pressure transmitter. A second high-pressure coupling joins the second pressure outlet of the process manifold to the second pressure inlet of the process fluid pressure transmitter. The first and second high-pressure fluid couplings are configured to accommodate misalignment between the respective pressure outlets and inlets.Type: GrantFiled: September 28, 2012Date of Patent: October 13, 2015Assignee: Rosemount Inc.Inventor: David Matthew Strei
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Patent number: 9038476Abstract: A pressure transmitter has a pressure sensor, an isolator diaphragm, and a fill tube. Interior passages in the pressure sensor module body are filled with isolator fluid and provide fluid connections. The isolator fluid couples pressure from the first isolator diaphragm assembly to the pressure sensor. A first crimp portion of the fill tube radially narrows into a substantially solid circular cylindrical cross section to form a first primary seal that is resistant to high pressure cycling.Type: GrantFiled: September 27, 2012Date of Patent: May 26, 2015Assignee: Rosemount Inc.Inventors: David Matthew Strei, Kenneth Guttsen
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Publication number: 20150082903Abstract: A multivariable process fluid transmitter module includes a base having a pair of recesses. A pair of pedestals is provided with each pedestal being disposed in a respective recess and being coupled to a respective isolation diaphragm. At least one line pressure assembly is mounted proximate one of the pedestals. The at least one line pressure assembly couples a respective isolation diaphragm to a line pressure sensor. A differential pressure sensor has a sensing diaphragm fluidically coupled to the isolation diaphragms by a fill fluid. At least one additional sensor is disposed to sense a temperature of a process fluid. Circuitry is coupled to the line pressure sensor, the differential pressure sensor, and the at least one additional sensor to measure an electrical characteristic of each of the line pressure sensor, the differential pressure sensor, and the at least one additional sensor.Type: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Inventor: David Matthew Strei
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Publication number: 20140352749Abstract: Electrical power is produced by a first process component, a first heat pipe formed in part by a first cavity within the first process component, and a thermoelectric generator assembly. The thermoelectric generator assembly is thermally coupled on one side to a heat sink and on the other side to the first heat pipe. The first process component is in direct contact with a first process fluid and the first cavity is proximate the first process fluid. The thermoelectric generator assembly produces electrical power.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Rosemount Inc.Inventors: David Matthew Strei, Kelly Michael Orth
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Publication number: 20140090478Abstract: A process fluid pressure sensing system includes a process fluid pressure transmitter and a process manifold. The process fluid pressure transmitter has first and second pressure inlets and is configured to obtain a measurement relative to pressures applied at the first and second pressure inlets and provide a process variable output based on the measurement. The process manifold is operably coupled to a process fluid and has first and second pressure outlets. A first high-pressure coupling joins the first pressure outlet of the process manifold to the first pressure inlet of the process fluid pressure transmitter. A second high-pressure coupling joins the second pressure outlet of the process manifold to the second pressure inlet of the process fluid pressure transmitter. The first and second high-pressure fluid couplings are configured to accommodate misalignment between the respective pressure outlets and inlets.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: Rosemount Inc.Inventor: David Matthew Strei
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Publication number: 20140083171Abstract: A pressure transmitter has a pressure sensor, an isolator diaphragm, and a fill tube. Interior passages in the pressure sensor module body are filled with isolator fluid and provide fluid connections. The isolator fluid couples pressure from the first isolator diaphragm assembly to the pressure sensor. A first crimp portion of the fill tube radially narrows into a substantially solid circular cylindrical cross section to form a first primary seal that is resistant to high pressure cycling.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Applicant: ROSEMOUNT INC.Inventors: David Matthew Strei, Kenneth Guttsen
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Publication number: 20130005372Abstract: Electrical power is produced by a first process component, a first heat pipe formed in part by a first cavity within the first process component, and a thermoelectric generator assembly. The thermoelectric generator assembly is thermally coupled on one side to a heat sink and on the other side to the first heat pipe. The first process component is in direct contact with a first process fluid and the first cavity is proximate the first process fluid. The thermoelectric generator assembly produces electrical power.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Applicant: Rosemount Inc.Inventors: David Matthew Strei, Kelly Michael Orth
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Publication number: 20110053526Abstract: A wireless process communication adapter for field devices is provided. The adapter includes a metal housing having a first end and a second end. A chamber is defined between the first and second ends. A radio-frequency transparent radome is coupled to the first end. The second end has a field device coupling configured to attach to a field device. At least one circuit board is disposed within the chamber. The circuit board supports at least wireless process communication circuitry. A plurality of wires is coupled to the at least one circuit board and extends through the field device coupling. A silicone potting fills substantially all volume within the chamber not occupied by the at least one circuit board and wireless process communication circuitry.Type: ApplicationFiled: August 27, 2010Publication date: March 3, 2011Inventors: David Matthew Strei, Joel David Vanderaa