Patents by Inventor Chengxin Pan

Chengxin Pan 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).

  • Sweeper head and hand-held sweeper
    Patent number: 11917951
    Abstract: A sweeper head includes a cleaning device, a transmission shaft, and a shield. The cleaning device includes a rolling member rotatable about a first axis and a cleaning element. The transmission shaft is rotatable about a second axis. The shield includes a surrounding portion for surrounding at least a part of the cleaning element. The surrounding portion includes a front surrounding portion and a rear surrounding portion located on two sides of a first plane and the first plane passes through the second axis and is parallel to the first axis. The ratio of a maximum measurement of the front surrounding portion in a direction parallel to the first axis to a maximum measurement of the rear surrounding portion in the direction is greater than or equal to 2 and is less than or equal to 3.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: March 5, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Fangjie Nie, Chengxin Pan, Toshinari Yamaoka
  • SWEEPER HEAD AND HAND-HELD SWEEPER
    Publication number: 20200367451
    Abstract: A sweeper head includes a cleaning device, a transmission shaft, and a shield. The cleaning device includes a rolling member rotatable about a first axis and a cleaning element. The transmission shaft is rotatable about a second axis. The shield includes a surrounding portion for surrounding at least a part of the cleaning element. The surrounding portion includes a front surrounding portion and a rear surrounding portion located on two sides of a first plane and the first plane passes through the second axis and is parallel to the first axis. The ratio of a maximum measurement of the front surrounding portion in a direction parallel to the first axis to a maximum measurement of the rear surrounding portion in the direction is greater than or equal to 2 and is less than or equal to 3.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 26, 2020
    Inventors: Fangjie Nie, Chengxin Pan, Toshinari Yamaoka