Patents by Inventor Weifu GUO

Weifu GUO 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).

  • Service life reminding system for water bottle filter element
    Patent number: 11173433
    Abstract: The present disclosure provides a service life reminding system for a water bottle filter element. The service life reminding system for the water bottle filter element includes a one-way valve head, a mounting bracket, and a circuit board. The mounting bracket includes a first accommodating cavity. A portion of the one-way valve head is movably accommodated in the first accommodating cavity. A magnetic element is fixed in the mounting bracket. A magnetic sensor is arranged on the circuit board. Both of the circuit board and the magnetic sensor are accommodated in the one-way valve head. When the one-way valve head slides to abut against the mounting bracket, the magnetic sensor senses the magnetic element. When the one-way valve head slides away from the mounting bracket until the one-way valve head separates from the mounting bracket, the magnetic sensor is unable to sense the magnetic element.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: November 16, 2021
    Assignee: SHENZHEN SHENLAN ELECTRIC APPLIANCE CO., LTD
    Inventors: Tianxiong Zeng, Weifu Guo, Shiyi Zhang
  • SERVICE LIFE REMINDING SYSTEM FOR WATER BOTTLE FILTER ELEMENT
    Publication number: 20210146285
    Abstract: The present disclosure provides a service life reminding system for a water bottle filter element. The service life reminding system for the water bottle filter element includes a one-way valve head, a mounting bracket, and a circuit board. The mounting bracket includes a first accommodating cavity. A portion of the one-way valve head is movably accommodated in the first accommodating cavity. A magnetic element is fixed in the mounting bracket. A magnetic sensor is arranged on the circuit board. Both of the circuit board and the magnetic sensor are accommodated in the one-way valve head. When the one-way valve head slides to abut against the mounting bracket, the magnetic sensor senses the magnetic element. When the one-way valve head slides away from the mounting bracket until the one-way valve head separates from the mounting bracket, the magnetic sensor is unable to sense the magnetic element.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 20, 2021
    Inventors: Tianxiong ZENG, Weifu GUO, Shiyi ZHANG