Patents by Inventor Shun-Zhi Huang

Shun-Zhi Huang 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).

  • Constant pressure pressurizing water pump
    Patent number: 7874810
    Abstract: A water pressurizing pump includes a pump mounted in a compartment of a water tank for pressurizing and outputting water. The compartment is sealed by a cover having a first channel in communication between the compartment and a water supply coupler and a second channel having an end in communication with the first channel. A pressure tank is mounted to the other end of the second channel of the cover. A differential pressure valve unit is slideably mounted in the pressure tank adjacent to the second channel. The differential pressure valve unit is movable by the high water pressure in the second channel to allow water from the second channel to enter the pressure tank.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: January 25, 2011
    Inventor: Shun-Zhi Huang
  • Constant Pressure Pressurizing Water Pump
    Publication number: 20090060752
    Abstract: A water pressurizing pump includes a pump mounted in a compartment of a water tank for pressurizing and outputting water. The compartment is sealed by a cover having a first channel in communication between the compartment and a water supply coupler and a second channel having an end in communication with the first channel. A pressure tank is mounted to the other end of the second channel of the cover. A differential pressure valve unit is slideably mounted in the pressure tank adjacent to the second channel. The differential pressure valve unit is movable by the high water pressure in the second channel to allow water from the second channel to enter the pressure tank.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 5, 2009
    Inventor: Shun-Zhi HUANG
  • Pressurizing water pump with control valve device
    Publication number: 20070122288
    Abstract: A water pressurizing pump includes an accumulator, a control valve device, a valve device, a pressure switch, and a motor. When the piping system is open and a water pressure in the accumulator is above a value, water flows from the accumulator into the piping system. When the piping system is open and the water pressure in the accumulator is below the value, the motor is turned on to pump water to the piping system. Water could not enter the accumulator to maintain the water pressure in the accumulator in a stable low-pressure state. When the piping system is closed and the water pressure in the accumulator is below the value, the motor is turned on to pump water into the accumulator.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 31, 2007
    Inventor: Shun-Zhi Huang