Patents by Inventor Chun-Chung Chu

Chun-Chung Chu 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).

  • Publication number: 20240116068
    Abstract: Disclosed is an upside-down sprayer with an auxiliary air conducting device for liquid pumping, including a container, a nozzle, and a dip tube equipped with a switching valve near its upper end, which has a valve casing, a valve ball, and an inverted liquid pumping port. An auxiliary air conducting device is disposed adjacent to the switching valve and includes a connection part, a guide seat, and a projecting tube with an opening, wherein the connection part is positioned on the dip tube, the guide seat has a groove, and the projecting tube communicates with the groove. The opening of the projecting tube is offset in the direction of the inverted liquid pumping port, and the height of the opening is not lower than the height of the inverted liquid pumping port when used inverted.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 11, 2024
    Inventors: Ching-Chung CHAN, Chun-Ho CHU
  • Patent number: 6857662
    Abstract: An adapter device includes a bracket having a wall and a fence extended from a base panel, the fence includes an opening formed by two arms for receiving a pipe, a tube is threaded to the wall and has one end movable toward and away from the fence. One or more plugs are selectively engaged between the tube and the pipe for making a tight seal between the tube and the pipe. One or more of the plugs may include a blind structure to block the tube and the pipe, or may include an orifice for communicating the tube and the pipe with each other.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: February 22, 2005
    Inventor: Chun-Chung Chu
  • Publication number: 20030102663
    Abstract: An adapter device includes a bracket having a wall and a fence extended from a base panel, the fence includes an opening formed by two arms for receiving a pipe, a tube is threaded to the wall and has one end movable toward and away from the fence. One or more plugs are selectively engaged between the tube and the pipe for making a tight seal between the tube and the pipe. One or more of the plugs may include a blind structure to block the tube and the pipe, or may include an orifice for communicating the tube and the pipe with each other.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 5, 2003
    Inventor: Chun-Chung Chu
  • Patent number: 6367282
    Abstract: A desiccator container is installed in a refrigerant pipe of an automobile air conditioner for absorbing water contained in refrigerant. The container comprises an inlet connector, an outlet connector, a test connector, a pair of first bolts, a pair of second bolts smaller than the first bolts, four first threaded holes, and three second threaded holes smaller than the first threaded holes. This can increase the adaptability of the desiccator container, thereby reducing the manufacturing and maintenance costs.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: April 9, 2002
    Inventor: Chun-Chung Chu
  • Patent number: D513168
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: December 27, 2005
    Inventor: Chun-Chung Chu