Patents by Inventor Shengjie Dong

Shengjie Dong 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).

  • Patent number: 6484357
    Abstract: A nozzle attachment for a vacuum cleaner. In one embodiment, the nozzle attachment includes a plurality of open-ended tubes, where the tubes are parallel to one another axially and each of the tubes is in contact with at least one other tube side by side so as to form an array of the tubes. The nozzle attachment also has a plurality of bristle members forming a brush, and an adapter having a first end and a second end, an interior chamber extending between the first end and the second end, and a mouth at the second end, the first end connectable to a vacuum source of the vacuum cleaner so as to provide suction and the second end being adapted to receive therein the array of the tubes and the brush through the mouth. The array of the tubes and the brush are positioned in a fixed side by side relationship and the tubes are in flow communication with the vacuum source of the vacuum cleaner through the interior chamber of the adapter.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: November 26, 2002
    Inventor: Shengjie Dong
  • Publication number: 20020170139
    Abstract: A nozzle attachment for a vacuum cleaner. In one embodiment, the nozzle attachment includes a plurality of open-ended tubes, where the tubes are parallel to one another axially and each of the tubes is in contact with at least one other tube side by side so as to form an array of the tubes. The nozzle attachment also has a plurality of bristle members forming a brush, and an adapter having a first end and a second end, an interior chamber extending between the first end and the second end, and a mouth at the second end, the first end connectable to a vacuum source of the vacuum cleaner so as to provide suction and the second end being adapted to receive therein the array of the tubes and the brush through the mouth. The array of the tubes and the brush are positioned in a fixed side by side relationship and the tubes are in flow communication with the vacuum source of the vacuum cleaner through the interior chamber of the adapter.
    Type: Application
    Filed: July 19, 2001
    Publication date: November 21, 2002
    Inventor: Shengjie Dong