Patents by Inventor Pingping LV

Pingping LV 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).

  • Automatic suction sealing box and working method thereof
    Patent number: 11891228
    Abstract: Provided is an automatic air-extracting sealing box cover, comprising a bottom cover and a top cover that are mutually detachably connected, wherein the bottom cover and the bottom cover are connected to form a device chamber, and an automatic air extracting apparatus is mounted in the device chamber; the automatic air-extracting apparatus comprises a power source, a pressure sensor, an air pump, and a controller; the power source is connected to power source input ends of the pressure sensor, the air pump and the controller; an air extracting opening of the air pump and a probe of the pressure sensor project out of a lower surface of the bottom cover; an output end of the pressure sensor is connected to a collection circuit, and an output end of the collection circuit is connected to an input end of the controller; a control signal output end of the controller is connected an on/off control end of the air pump.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: February 6, 2024
    Assignee: CHANGZHOU BESTFULL MOULD & PLASTICS CO., LTD
    Inventors: Tianyi Zhou, Jiancai Yang, Pingping Lv, Caixia Chen
  • Automatic suction sealing box and working method thereof
    Publication number: 20200156848
    Abstract: Provided is an automatic air-extracting sealing box cover, comprising a bottom cover and a top cover that are mutually detachably connected, wherein the bottom cover and the bottom cover are connected to form a device chamber, and an automatic air extracting apparatus is mounted in the device chamber; the automatic air-extracting apparatus comprises a power source, a pressure sensor, an air pump, and a controller; the power source is connected to power source input ends of the pressure sensor, the air pump and the controller; an air extracting opening of the air pump and a probe of the pressure sensor project out of a lower surface of the bottom cover; an output end of the pressure sensor is connected to a collection circuit, and an output end of the collection circuit is connected to an input end of the controller; a control signal output end of the controller is connected an on/off control end of the air pump.
    Type: Application
    Filed: July 16, 2019
    Publication date: May 21, 2020
    Inventors: Tianyi ZHOU, Jiancai YANG, Pingping LV, Caixia CHEN