Patents by Inventor David Walter Keckalo

David Walter Keckalo 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).

  • Electric power distribution sectionalizing in high-risk areas using wireless fault sensors
    Patent number: 11431161
    Abstract: Disclosed herein are systems and methods for safe electric power delivery protection within a high-risk area while maintaining electric power availability in non-faulted areas. Fault signals from wireless sensors are used at a recloser to block reclosing onto a faulted high-risk zone. Fault signals from wireless sensors are used at a recloser to permit reclosing when the reclosing operation will not close onto a fault location within the high-risk zone. Portions of the power system may be selectively openable by sectionalizers. When a fault is reported by a wireless sensor as being on a portion of the power system selectively openable, a recloser may be permitted to attempt a reclose operation affecting the high-risk zone and the selectively openable portion.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 30, 2022
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: David Walter Keckalo, Kei Hao
  • ELECTRIC POWER DISTRIBUTION SECTIONALIZING IN HIGH-RISK AREAS USING WIRELESS FAULT SENSORS
    Publication number: 20210281062
    Abstract: Disclosed herein are systems and methods for safe electric power delivery protection within a high-risk area while maintaining electric power availability in non-faulted areas. Fault signals from wireless sensors are used at a recloser to block reclosing onto a faulted high-risk zone. Fault signals from wireless sensors are used at a recloser to permit reclosing when the reclosing operation will not close onto a fault location within the high-risk zone. Portions of the power system may be selectively openable by sectionalizers. When a fault is reported by a wireless sensor as being on a portion of the power system selectively openable, a recloser may be permitted to attempt a reclose operation affecting the high-risk zone and the selectively openable portion.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 9, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: David Walter Keckalo, Kei Hao