Patents by Inventor Long Min

Long Min 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).

  • Remote monitoring and indicating device for thermally protected metal oxide varistor
    Patent number: 12763236
    Abstract: A thermally protected metal oxide varistor (TMOV) is disclosed. The TMOV features one or more magnets connected to the arc shield of the TMOV and a sensor. Once a fault condition occurs, the arc shield movement places the magnets near the sensor, causing the sensor to indicate the fault condition, enabling a technician to repair or replace the TMOV.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: October 13, 2026
    Assignee: Dongguan Littelfuse Electronics, Co., Ltd.
    Inventors: Long Min, Dongjian Song, Libing Lu
  • Fast activation thermal fuse for short circuit current protection
    Patent number: 12131849
    Abstract: A flat spring (100) is disclosed, for use in a surge protection device (SPD) such as a fast activation thermal fuse, to be integrated with a thermal metal oxide varistor (TMOV). The flat spring (100) has a V-shaped protrusion (110) to enable ultra-high short circuit current protection under overvoltage condition.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 29, 2024
    Assignee: Dongguan Littelfuse Electronics Company Limited
    Inventors: Long Min, Libing Lu, Dongjian Song
  • A REMOTE MONITORING AND INDICATING DEVICE FOR THERMALLY PROTECTED METAL OXIDE VARISTOR
    Publication number: 20240249862
    Abstract: A thermally protected metal oxide varistor (TMOV) is disclosed. The TMOV features one or more magnets connected to the arc shield of the TMOV and a sensor. Once a fault condition occurs, the arc shield movement places the magnets near the sensor, causing the sensor to indicate the fault condition, enabling a technician to repair or replace the TMOV.
    Type: Application
    Filed: July 6, 2022
    Publication date: July 25, 2024
    Applicant: Dongguan Littelfuse Electronics Company Limited
    Inventors: Long Min, Dongjian Song, Libing Lu
  • FAST ACTIVATION THERMAL FUSE FOR SHORT CIRCUIT CURRENT PROTECTION
    Publication number: 20230085845
    Abstract: A flat spring (100) is disclosed, for use in a surge protection device (SPD) such as a fast activation thermal fuse, to be integrated with a thermal metal oxide varistor (TMOV). The flat spring (100) has a V-shaped protrusion (110) to enable ultra-high short circuit current protection under overvoltage condition.
    Type: Application
    Filed: May 11, 2020
    Publication date: March 23, 2023
    Applicant: Dongguan Littelfuse Electronics Company Limited
    Inventors: Long Min, Libing LU, Dongjian Song