Patents by Inventor Xiao-Qing Dong

Xiao-Qing 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: 8151378
    Abstract: This invention is a toilet flushing system. It consists of a button controlled pressure flushing device, a sealed water tank, a flushing valve, major and minor flushing control valves, an air induce device and a one-way water valve. The characteristic of the system is that the button controlled pressure flushing device has a water-volume adjustable valve, a flushing valve with a sealed cavity which has a water injection pipe and a water release pipe. The inlet and the outlet of the water-volume adjustable valve are connected to the outlet of the one-way water valve and water injection pipe of the flushing valve respectively. The inlets of the major and minor flushing control valve are connected to the water release pipe of the flushing valve. The outlets of the major and minor control valves are linked to the main release outlet which has large diameter and high speed on-off action.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: April 10, 2012
    Inventor: Xiao-Qing Dong
  • Publication number: 20100212078
    Abstract: This invention is a toilet flushing system. It consists of a button controlled pressure flushing device, a sealed water tank, a flushing valve, major and minor flushing control valves, an air induce device and a one-way water valve. The characteristic of the system is that the button controlled pressure flushing device has a water-volume adjustable valve, a flushing valve with a sealed cavity which has a water injection pipe and a water release pipe. The inlet and the outlet of the water-volume adjustable valve are connected to the outlet of the one-way water valve and water injection pipe of the flushing valve respectively. The inlets of the major and minor flushing control valve are connected to the water release pipe of the flushing valve. The outlets of the major and minor control valves are linked to the main release outlet which has large diameter and high speed on-off action.
    Type: Application
    Filed: July 17, 2008
    Publication date: August 26, 2010
    Inventor: Xiao-Qing Dong