Patents by Inventor Huang-Chang Wu

Huang-Chang Wu 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: 20040184913
    Abstract: A blade structure for an acid and base resistant vertical-pump is disclosed. The vertical-pump blade structure comprises a motor module with a front cover seat and a top cover seat, a water-output seat, characterized in that the body of the pump is provided with an isolation ring having a bottom end mounted with a turbulent pump blade and the pump blade is secured to the axle, a hollow bottom ring is provided at the hollow space of the body and the bottom end of the turbulent pump blade, and the turbulent pump blade is mounted to the water output seat.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventor: Huang-Chang Wu
  • Patent number: 6685445
    Abstract: An improved structure of a vertical-type, acid and base resistance pump is disclosed. The present pump structure comprises a motor, a seal cap, a ceramic ring, two seals, a shaft cap, a propeller wheel and a pump body, the front of the motor provided with a shaft center having mounted with the shaft cap to prevent fluid from entering and to engage with the propeller wheel, the external side of the shaft center provided with the pump body having an outlet tube, the seal cap located between the top section of the body and the motor, and the bottom section of the body mounted with the ceramic ring, characterized in that the positive face and the reverse face of the shaft cap are provided with the high abrasive resistance seals, and the two seals contact at the top and bottom of the ceramic ring, such that the heat energy is dissipated from the seal cap to outside, and gas is prevented from entering and the reverse-flow of fluid is prevented.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 3, 2004
    Inventor: Huang-Chang Wu
  • Publication number: 20030053919
    Abstract: An improved structure of a vertical-type, acid and base resistance pump is disclosed. The present pump structure comprises a motor, a seal cap, a ceramic ring, two seals, a shaft cap, a propeller wheel and a pump body, the front of the motor provided with a shaft center having mounted with the shaft cap to prevent fluid from entering and to engage with the propeller wheel, the external side of the shaft center provided with the pump body having an outlet tube, the seal cap located between the top section of the body and the motor, and the bottom section of the body mounted with the ceramic ring, characterized in that the positive face and the reverse face of the shaft cap are provided with the high abrasive resistance seals, and the two seals contact at the top and bottom of the ceramic ring, such that the heat energy is dissipated from the seal cap to outside, and gas is prevented from entering and the reverse-flow of fluid is prevented.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 20, 2003
    Inventor: Huang-Chang Wu
  • Patent number: 6527511
    Abstract: An improved structure of an acid/base resistance pump is disclosed. The improved structure of an acid/base resistance pump has a motor, a body housing, a center cavity, an axle device, a blade device and a water-transporting seat, the motor being mounted on the top of the housing and the center of the motor being the axle device for transmission, the front section of the axle device being connected with the motor and the blade device for fluid flowing being disposed at the other end of the center of the axle device, and the lower side of the housing being the water-transporting seat, characterized in that the center body is detachably mounted between the water-transporting seat and the body housing such that the blade device is located at the external side of the center cavity, and the center cavity isolates the solution at the position between the water-transporting seat and the blade device.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: March 4, 2003
    Inventor: Huang-Chang Wu