Patents by Inventor King Tsang Chung

King Tsang Chung 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: 11110473
    Abstract: A piston is formed by an outer edge of the cap. The piston and an inner wall of the nozzle body form a dynamic seal for the air cylinder, so that a main body of the air pump is formed. The cap extends downwardly to form a hydraulic cylinder. The hollow compression rod connects a pump component of the hydraulic cylinder and the mixing chamber of the head, so that a main body of the liquid pump is formed. The hollow compression rod is provided with an upper disk. The upper end of the upper disk passes the air outlet of the nozzle body and is inserted into the connecting pipe of the head in snap fit, and the upper disk opens or closes the air outlet. A fastening position is designed to form a gap between the head and the nozzle body to realize a floating valve function at the head.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: September 7, 2021
    Inventor: King Tsang Chung
  • Publication number: 20200108406
    Abstract: A piston is formed by an outer edge of the cap. The piston and an inner wall of the nozzle body form a dynamic seal for the air cylinder, so that a main body of the air pump is formed. The cap extends downwardly to form a hydraulic cylinder. The hollow compression rod connects a pump component of the hydraulic cylinder and the mixing chamber of the head, so that a main body of the liquid pump is formed. The hollow compression rod is provided with an upper disk. The upper end of the upper disk passes the air outlet of the nozzle body and is inserted into the connecting pipe of the head in snap fit, and the upper disk opens or closes the air outlet. A fastening position is designed to form a gap between the head and the nozzle body to realize a floating valve function at the head.
    Type: Application
    Filed: November 19, 2019
    Publication date: April 9, 2020
    Inventor: King Tsang CHUNG
  • Patent number: 9795256
    Abstract: The invention discloses an elastic bag foam pump, which comprises a bottle cover (1), an elastic bag (2), a piston rod (3), a piston (4), a liquid inlet one-way valve (6) and a gas inlet one-way valve (8), wherein the elastic bag (2) is a hollow thin-wall bag; the bag opening of the elastic bag is provided with a connection part (2.1); the connection part (2.1) is mounted on an annular wall (1.1) used for connection on the bottle cover (1) in a sealing way; the elastic bag (2) is provided with an inlet hole (1.8) through which an inlet pipe (2.4) is communicated with the bottle cover (1); the gas inlet one-way valve (8) is mounted at one side of the inlet hole (1.8); a piston rod upper end (3.1) is fixed to an upper wall connection part (2.3) of the elastic bag (2); the lower end of the piston rod (3) is provided with the piston (4); and a cylinder (1.2) is arranged in the middle of the bottle cover (1). The elastic bag foam pump has the advantages of simple structure, low cost and easy to use.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: October 24, 2017
    Inventor: King Tsang Chung
  • Publication number: 20160374520
    Abstract: The invention discloses an elastic bag foam pump, which comprises a bottle cover (1), an elastic bag (2), a piston rod (3), a piston (4), a liquid inlet one-way valve (6) and a gas inlet one-way valve (8), wherein the elastic bag (2) is a hollow thin-wall bag; the bag opening of the elastic bag is provided with a connection part (2.1); the connection part (2.1) is mounted on an annular wall (1.1) used for connection on the bottle cover (1) in a sealing way; the elastic bag (2) is provided with an inlet hole (1.8) through which an inlet pipe (2.4) is communicated with the bottle cover (1); the gas inlet one-way valve (8) is mounted at one side of the inlet hole (1.8); a piston rod upper end (3.1) is fixed to an upper wall connection part (2.3) of the elastic bag (2); the lower end of the piston rod (3) is provided with the piston (4); and a cylinder (1.2) is arranged in the middle of the bottle cover (1). The elastic bag foam pump has the advantages of simple structure, low cost and easy to use.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 29, 2016
    Inventor: King Tsang Chung