Patents by Inventor Henry Loehner

Henry Loehner 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).

  • Publication number: 20240295622
    Abstract: A system for monitoring a voltage of a conductor of an electric power delivery system after automatic voltage sensor calibration. The system includes a sensor for capacitive coupling with an access point. The system includes an IED in electrical communication with the sensor to obtain signals therefrom. The IED may be configured to automatically calibrate to accommodate the signals from the conductor obtained using the sensor. The IED may provide an output depending on the determined voltage on the conductor.
    Type: Application
    Filed: November 2, 2023
    Publication date: September 5, 2024
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Henry Loehner, Naiden K. Spasov, Stephen F. Witt, Miralem Cosic, Jeff Bassett, Anatoliy V. Kozlov, Kenneth J. Van Den Heuvel
  • Patent number: 10379500
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 13, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Patent number: 10122487
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 6, 2018
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: David E. Whitehead, Shankar V. Achanta, Henry Loehner
  • Publication number: 20170351223
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Patent number: 9760062
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: September 12, 2017
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Patent number: 9709680
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 18, 2017
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Publication number: 20170063482
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Inventors: David E. Whitehead, Shankar V. Achanta, Henry Loehner
  • Patent number: 9520860
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: December 13, 2016
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: David E. Whitehead, Shankar V. Achanta, Henry Loehner
  • Publication number: 20140250972
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Application
    Filed: September 4, 2013
    Publication date: September 11, 2014
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Publication number: 20140114608
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 24, 2014
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Shankar V. Achanta, David E. Whitehead, Henry Loehner
  • Publication number: 20140111249
    Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 24, 2014
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: David E. Whitehead, Shankar V. Achanta, Henry Loehner