Patents by Inventor David Andrew Broden
David Andrew Broden 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: 11378480Abstract: A pressure sensor assembly includes a pressure sensor having a support structure and a sapphire isolation member coupled to the support structure and forming a region between a first surface of the sapphire isolation member and the support structure. A second surface of the sapphire isolation member has a sapphire etch surface formed thereon and is positioned to interface with fluid from or coupled to a process. A process seal is positioned against the second surface of the sapphire isolation member to prevent fluid from passing by the pressure sensor assembly. Electrical leads couple to a polysilicon strain gauge pattern positioned in the region on the first surface of the sapphire isolation member, and the polysilicon strain gauge pattern is configured to generate electrical signals indicative of the pressure of the fluid when the sapphire isolation member deflects responsive to the pressure.Type: GrantFiled: September 21, 2020Date of Patent: July 5, 2022Assignee: ROSEMOUNT INC.Inventors: David Andrew Broden, Charles Ray Willcox
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Publication number: 20220090977Abstract: A pressure sensor assembly includes a pressure sensor having a support structure and a sapphire isolation member coupled to the support structure and forming a region between a first surface of the sapphire isolation member and the support structure. A second surface of the sapphire isolation member is positioned to interface with fluid from or coupled to a process. Electrical leads couple to a polysilicon strain gauge pattern positioned in the region on the first surface of the sapphire isolation member, and the polysilicon strain gauge pattern is configured to generate electrical signals indicative of the pressure of the fluid when the sapphire isolation member deflects responsive to the pressure.Type: ApplicationFiled: September 21, 2020Publication date: March 24, 2022Inventors: David Andrew Broden, Charles Ray Willcox
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Patent number: 11226253Abstract: A process pressure transmitter includes transmitter electronics disposed within a housing coupled to a pressure sensor formed by a cell body defining an interior cavity. A deflectable diaphragm separates the interior cavity into a first cavity and a second cavity. The deflectable diaphragm includes a groove region located around a periphery of the deflectable diaphragm.Type: GrantFiled: December 23, 2019Date of Patent: January 18, 2022Assignee: ROSEMOUNT INC.Inventors: David Andrew Broden, Charles Ray Willcox, Brian Michael Affias, Jennifer Ann Blodgett
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Publication number: 20210190619Abstract: A process pressure transmitter includes transmitter electronics disposed within a housing. The transmitter electronics includes a communications circuit coupled to a processing system and an analog to digital converter disposed within the housing. The analog to digital converter electrically is coupled to the transmitter electronics. A pressure sensor comprises a cell body defining an interior cavity. A deflectable diaphragm comprising a second material is coupled to the cell body and separates the interior cavity into a first cavity and a second cavity. The deflectable diaphragm includes a groove region located around a periphery of the deflectable diaphragm. The first and second cavities each contain a dielectric fill-fluid, each of the fill fluids adapted to receive a pressure and exert a corresponding force on the diaphragm, and the diaphragm is deflectable in response to differences in the pressures received by the fill-fluids in the first and second cavities.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Inventors: David Andrew Broden, Charles Ray Willcox, Brian Michael Affias, Jennifer Ann Blodgett
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Patent number: 11041773Abstract: A sensor body cell for use in a pressure sensor includes a metal housing and an insulating cell. The metal housing has a first cavity with a first conical inner surface. A portion of the first conical inner surface is concave. The insulating cell includes a first seal portion within the first cavity and forms a seal with the first conical inner surface.Type: GrantFiled: March 28, 2019Date of Patent: June 22, 2021Assignee: ROSEMOUNT INC.Inventors: Charles Ray Willcox, Jennifer Ann Blodgett, David Andrew Broden, Brian Michael Affias
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Publication number: 20200309631Abstract: A sensor body cell for use in a pressure sensor includes a metal housing and an insulating cell. The metal housing has a first cavity with a first conical inner surface. A portion of the first conical inner surface is concave. The insulating cell includes a first seal portion within the first cavity and forms a seal with the first conical inner surface.Type: ApplicationFiled: March 28, 2019Publication date: October 1, 2020Inventors: Charles Ray Willcox, Jennifer Ann Blodgett, David Andrew Broden, Brian Michael Affias
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Patent number: 10260980Abstract: A pressure measurement system is provided. The system includes a pressure sensing probe extendable into a process fluid and having a pressure sensor with an electrical characteristic that varies with process fluid pressure. A mineral insulated cable has a metallic sheath with a distal end attached to the pressure sensing probe and a proximal end. The mineral insulated cable includes a plurality of conductors extending within the metallic sheath and being spaced from one another by an electrically insulative dry mineral. The proximal end of the metallic sheath is configured to be sealingly attached to a process fluid vessel.Type: GrantFiled: September 27, 2013Date of Patent: April 16, 2019Assignee: ROSEMOUNT INC.Inventors: Mark Stephen Schumacher, David Andrew Broden
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Patent number: 9857259Abstract: A capacitance-based pressure sensor for measuring a process variable includes a metal sensor body, a diaphragm disposed within a cavity of the metal sensor to form a deflectable capacitor plate, and an insulator extending through the metal sensor body from an end wall to the cavity. The pressure sensor further includes an isolation tube in fluid connection with the cavity, the isolation tube extending into the insulator through the end wall, a stationary capacitor plate on a surface of the insulator in the cavity, the stationary capacitor plate spaced from the diaphragm, and an electrical lead wire connected to the stationary capacitor plate and extending through the insulator parallel to the isolation tube and exiting the insulator at the end wall. A fill fluid is within the isolation tube and the cavity to apply pressure to the diaphragm.Type: GrantFiled: September 30, 2014Date of Patent: January 2, 2018Assignee: Rosemount Inc.Inventors: David Andrew Broden, Charles Ray Willcox, Donald Edward Harasyn
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Publication number: 20160091379Abstract: A capacitance-based pressure sensor for measuring a process variable includes a metal sensor body, a diaphragm disposed within a cavity of the metal sensor to form a deflectable capacitor plate, and an insulator extending through the metal sensor body from an end wall to the cavity. The pressure sensor further includes an isolation tube in fluid connection with the cavity, the isolation tube extending into the insulator through the end wall, a stationary capacitor plate on a surface of the insulator in the cavity, the stationary capacitor plate spaced from the diaphragm, and an electrical lead wire connected to the stationary capacitor plate and extending through the insulator parallel to the isolation tube and exiting the insulator at the end wall. A fill fluid is within the isolation tube and the cavity to apply pressure to the diaphragm.Type: ApplicationFiled: September 30, 2014Publication date: March 31, 2016Inventors: David Andrew Broden, Charles Ray Willcox, Donald Edward Harasyn
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Patent number: 9103739Abstract: A pressure transmitter system for measuring a pressure of a process fluid in an industrial process includes a pressure transmitter having a pressure sensor. A process fluid passageway having a circular opening is configured to couple pressure of the process fluid to the pressure sensor. A concentric seal support structure extends around the circular opening comprising an annular recess. An annular stress riser is positioned radially inward from the annular recess. A seal material fills the annular recess and contacts at least a portion of the annular stress riser.Type: GrantFiled: September 27, 2013Date of Patent: August 11, 2015Assignee: Rosemount Inc.Inventors: David Andrew Broden, Daniel Ronald Schwartz, Jonathan Gordon Koehler
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Publication number: 20150090040Abstract: A pressure measurement system is provided. The system includes a pressure sensing probe extendable into a process fluid and having a pressure sensor with an electrical characteristic that varies with process fluid pressure. A mineral insulated cable has a metallic sheath with a distal end attached to the pressure sensing probe and a proximal end. The mineral insulated cable includes a plurality of conductors extending within the metallic sheath and being spaced from one another by an electrically insulative dry mineral. The proximal end of the metallic sheath is configured to be sealingly attached to a process fluid vessel.Type: ApplicationFiled: September 27, 2013Publication date: April 2, 2015Inventors: Mark Stephen Schumacher, David Andrew Broden
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Publication number: 20150090039Abstract: A pressure transmitter system for measuring a pressure of a process fluid in an industrial process includes a pressure transmitter having a pressure sensor. A process fluid passageway having a circular opening is configured to couple pressure of the process fluid to the pressure sensor. A concentric seal support structure extends around the circular opening comprising an annular recess. An annular stress riser is positioned radially inward from the annular recess. A seal material fills the annular recess and contacts at least a portion of the annular stress riser.Type: ApplicationFiled: September 27, 2013Publication date: April 2, 2015Inventors: David Andrew Broden, Daniel Ronald Schwartz, Jonathan Gordon Koehler
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Patent number: 8448519Abstract: A process transmitter for measuring a process variable comprises a sensor module and a static pressure coupling. The sensor module comprises a sensor for measuring a process variable of an industrial process and for generating a sensor signal. The sensor includes a hydraulic fluid inlet within the module. The static pressure coupling is connected to the sensor module and comprises a isolator fitting, a process fluid coupling and an isolation diaphragm. The isolator fitting is inserted into the sensor module and connected to the hydraulic fluid inlet. The process fluid coupling is joined to the isolator fitting. The isolation diaphragm is positioned between the isolator fitting and the process fluid coupling outside of the sensor module.Type: GrantFiled: October 5, 2010Date of Patent: May 28, 2013Assignee: Rosemount Inc.Inventors: David Andrew Broden, David Anthony Horkey
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Publication number: 20120079884Abstract: A process transmitter for measuring a process variable comprises a sensor module and a static pressure coupling. The sensor module comprises a sensor for measuring a process variable of an industrial process and for generating a sensor signal. The sensor includes a hydraulic fluid inlet within the module. The static pressure coupling is connected to the sensor module and comprises a isolator fitting, a process fluid coupling and an isolation diaphragm. The isolator fitting is inserted into the sensor module and connected to the hydraulic fluid inlet. The process fluid coupling is joined to the isolator fitting. The isolation diaphragm is positioned between the isolator fitting and the process fluid coupling outside of the sensor module.Type: ApplicationFiled: October 5, 2010Publication date: April 5, 2012Applicant: Rosemount Inc.Inventors: David Andrew Broden, David Anthony Horky
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Patent number: 6935156Abstract: A pressure sensor of a process device, is characterized by applying a plurality of pressures to the process sensor. Outputs of the plurality of pressures are received. A compensation relationship is determined based upon the pressure sensor output. The characterization data is collected in a distribution which is non-uniform across the pressure range.Type: GrantFiled: September 30, 2003Date of Patent: August 30, 2005Assignee: Rosemount Inc.Inventors: David Andrew Broden, Timothy Patrick Fogarty, David Eugene Wiklund, Terry Xen Beachey, Mark S. Schumacher