Patents by Inventor David Lawrence Epperson
David Lawrence Epperson 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: 11125783Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter and a remote control apparatus. A plurality of sensor units may be networked and controlled by the remote control apparatus.Type: GrantFiled: November 11, 2019Date of Patent: September 21, 2021Assignee: Fluke CorporationInventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Publication number: 20200081036Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter and a remote control apparatus. A plurality of sensor units may be networked and controlled by the remote control apparatus.Type: ApplicationFiled: November 11, 2019Publication date: March 12, 2020Inventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Patent number: 10473696Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter and a remote control apparatus. A plurality of sensor units may be networked and controlled by the remote control apparatus.Type: GrantFiled: March 27, 2017Date of Patent: November 12, 2019Assignee: Fluke CorporationInventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Patent number: 10209271Abstract: In at least one embodiment, a handheld measurement system generates a measurement image derived from measurement data that is generated and/or received by the handheld measurement system. The handheld measurement system also generates a plurality of option images that each correspond to a particular selectable option. A display screen, which may be a touch screen, simultaneously displays the measurement image and the option images. The measurement device modifies the measurement image and/or the option images in response to received option image selections.Type: GrantFiled: June 27, 2016Date of Patent: February 19, 2019Assignee: Fluke CorporationInventors: David Lawrence Epperson, Glen Howard Vetter, Joseph V. Ferrante
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Patent number: 10095659Abstract: Embodiments of the present disclosure are generally directed to handheld systems, individual components, and methods of using such systems and components for measuring parameters, such as electrical, mechanical, and physical measurement parameters. In one embodiment of the present disclosure, a gateway device for a measurement system generally includes a first communication system for receiving at least one signal containing data according to a first protocol, wherein the at least one signal includes at least one measurement value from at least one handheld measurement device, a signal translator for translating the signal containing the data to another signal containing the data according to a second protocol different from the first protocol, and a data memory system for storing data on the gateway device.Type: GrantFiled: March 14, 2013Date of Patent: October 9, 2018Assignee: Fluke CorporationInventors: Luis Alberto Katz, Henricus Koppelmans, Paul Herman Heydron, David Lawrence Epperson
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Patent number: 9766270Abstract: An installation test system has a control device and one or more hand-held test devices. The control device and the one or more hand-held devices are in wireless communication via respective communication systems. The control device performs typical pre-power tests including insulation testing and ground testing. There is at least one hand-held device dedicated to testing for residual current in circuit breakers and another hand-held device dedicated to testing for loop impedance. The control device records all test data and stores data in storage.Type: GrantFiled: December 30, 2013Date of Patent: September 19, 2017Assignee: Fluke CorporationInventors: Paul Herman Heydron, Jeetendra Patel, David Lawrence Epperson
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Patent number: 9739801Abstract: An analytical gateway device receives measurement data comprising one or more measurement values from one or more measurement devices. The gateway device selects a measurement application from a plurality of measurement applications available for execution (e.g., on the gateway device or some other computing device) based at least in part on the measurement data. For example, the measurement application can be selected based on measurement type information. The measurement type information may include one or more measurement units associated with the measurement values. The gateway device may cause a user interface (or some other information) associated with the measurement application to be presented on a display (e.g., a display of the gateway device or some other computing device in communication with the gateway device).Type: GrantFiled: July 16, 2013Date of Patent: August 22, 2017Assignee: Fluke CorporationInventors: Thomas Duffy Anderson, David Lawrence Epperson
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Publication number: 20170199230Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter and a remote control apparatus. A plurality of sensor units may be networked and controlled by the remote control apparatus.Type: ApplicationFiled: March 27, 2017Publication date: July 13, 2017Inventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Patent number: 9606146Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter. A plurality of sensor units may be networked and controlled by a remote control apparatus.Type: GrantFiled: September 25, 2014Date of Patent: March 28, 2017Assignee: Fluke CorporationInventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Patent number: 9551597Abstract: In at least one embodiment, a mobile measurement system includes a handheld device, a measurement device, and an optical sensing device. The measurement device and the optical sensing device are communicatively coupled to the handheld device. The handheld device receives measurement data that comprises at least one measured electrical parameter corresponding to a physical property of an external system. The measurement device generates measurement data that corresponds to a period of time. The measurement device communicates the generated measurement data to the handheld device. The optical sensing device generates optical data corresponding to an interface of the measurement device and the external system where the measurement data is being generated. The generated optical data corresponds to a particular time within the measurement period of time. The mobile measurement system associates and stores the generated optical data for the particular time with measurement data corresponding to the period of time.Type: GrantFiled: March 15, 2013Date of Patent: January 24, 2017Assignee: Fluke CorporationInventors: David Lawrence Epperson, Glen Howard Vetter
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Publication number: 20160305978Abstract: In at least one embodiment, a handheld measurement system generates a measurement image derived from measurement data that is generated and/or received by the handheld measurement system. The handheld measurement system also generates a plurality of option images that each correspond to a particular selectable option. A display screen, which may be a touch screen, simultaneously displays the measurement image and the option images. The measurement device modifies the measurement image and/or the option images in response to received option image selections.Type: ApplicationFiled: June 27, 2016Publication date: October 20, 2016Inventors: David Lawrence Epperson, Glen Howard Vetter, Joseph V. Ferrante
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Patent number: 9377485Abstract: In at least one embodiment, a handheld measurement system for receiving measurement data. The handheld measurement system generates a measurement image derived from the received measurement data. The handheld measurement system also generates a plurality of option images that each correspond to a particular option. A touch screen is coupled to the measurement device, and the touch screen displays the measurement image and the option images. The displayed option images are selectable, and the measurement device is configured to modify the measurement image in response to a selection.Type: GrantFiled: March 15, 2013Date of Patent: June 28, 2016Assignee: Fluke CorporationInventors: David Lawrence Epperson, Glen Howard Vetter, Joseph V. Ferrante
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Publication number: 20160091535Abstract: A Rogowski coil in a sensor unit has voltage induced by a conductor surrounded by the Rogowski coil. The voltage is integrated to represent current which is converted to digital data representing current in the conductor and sent wirelessly to a multimeter. The sensor unit may receive control signals from the multimeter. A plurality of sensor units may be networked and controlled by a remote control apparatus.Type: ApplicationFiled: September 25, 2014Publication date: March 31, 2016Inventors: Matthew Carl-Robert Bannister, David Lawrence Epperson, Clark N. Huber
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Publication number: 20150185251Abstract: An installation test system has a control device and one or more hand-held test devices. The control device and the one or more hand-held devices are in wireless communication via respective communication systems. The control device performs typical pre-power tests including insulation testing and ground testing. There is at least one hand-held device dedicated to testing for residual current in circuit breakers and another hand-held device dedicated to testing for loop impedance. The control device records all test data and stores data in storage.Type: ApplicationFiled: December 30, 2013Publication date: July 2, 2015Applicant: Fluke CorporationInventors: Paul Herman Heydron, Jeetendra Patel, David Lawrence Epperson
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Publication number: 20150022181Abstract: An analytical gateway device receives measurement data comprising one or more measurement values from one or more measurement devices. The gateway device selects a measurement application from a plurality of measurement applications available for execution (e.g., on the gateway device or some other computing device) based at least in part on the measurement data. For example, the measurement application can be selected based on measurement type information. The measurement type information may include one or more measurement units associated with the measurement values. The gateway device may cause a user interface (or some other information) associated with the measurement application to be presented on a display (e.g., a display of the gateway device or some other computing device in communication with the gateway device).Type: ApplicationFiled: July 16, 2013Publication date: January 22, 2015Inventors: Thomas Duffy Anderson, David Lawrence Epperson
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Publication number: 20140282241Abstract: In at least one embodiment, a handheld measurement system for receiving measurement data. The handheld measurement system generates a measurement image derived from the received measurement data. The handheld measurement system also generates a plurality of option images that each correspond to a particular option. A touch screen is coupled to the measurement device, and the touch screen displays the measurement image and the option images. The displayed option images are selectable, and the measurement device is configured to modify the measurement image in response to a selection.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: David Lawrence Epperson, Glen Howard Vetter, Joseph V. Ferrante
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Publication number: 20140267753Abstract: In at least one embodiment, a mobile measurement system includes a handheld device, a measurement device, and an optical sensing device. The measurement device and the optical sensing device are communicatively coupled to the handheld device. The handheld device receives measurement data that comprises at least one measured electrical parameter corresponding to a physical property of an external system. The measurement device generates measurement data that corresponds to a period of time. The measurement device communicates the generated measurement data to the handheld device. The optical sensing device generates optical data corresponding to an interface of the measurement device and the external system where the measurement data is being generated. The generated optical data corresponds to a particular time within the measurement period of time. The mobile measurement system associates and stores the generated optical data for the particular time with measurement data corresponding to the period of time.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: FLUKE CORPORATIONInventors: David Lawrence Epperson, Glen Howard Vetter
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Publication number: 20140035607Abstract: Embodiments of the present disclosure are generally directed to handheld systems, individual components, and methods of using such systems and components for measuring parameters, such as electrical, mechanical, and physical measurement parameters. In one embodiment of the present disclosure, a host handheld device generally includes a measuring system for measuring a first parameter, wherein the first parameter is an electrical parameter, and a receiving system for receiving at least a second parameter from a separate module device.Type: ApplicationFiled: March 14, 2013Publication date: February 6, 2014Inventors: Paul Herman Heydron, Henricus Koppelmans, David Lawrence Epperson, Luis Alberto Katz, Jeffrey Charles Hudson, Glen Howard Vetter
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Publication number: 20140039838Abstract: Embodiments of the present disclosure are generally directed to handheld systems, individual components, and methods of using such systems and components for measuring parameters, such as electrical, mechanical, and physical measurement parameters. In one embodiment of the present disclosure, a gateway device for a measurement system generally includes a first communication system for receiving at least one signal containing data according to a first protocol, wherein the at least one signal includes at least one measurement value from at least one handheld measurement device, a signal translator for translating the signal containing the data to another signal containing the data according to a second protocol different from the first protocol, and a data memory system for storing data on the gateway device.Type: ApplicationFiled: March 14, 2013Publication date: February 6, 2014Inventors: Luis Alberto Katz, Henricus Koppelmans, Paul Herman Heydron, David Lawrence Epperson