Patents by Inventor John Tsou

John Tsou 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).

  • Purifying device for cleaning combustion chamber of car engine
    Patent number: 5887606
    Abstract: The present invention relates to a purifying device for cleaning the nozzle of combustion chamber of car engine and carbon accumulated in the valve, which is to use an inlet tube connecting fuel oil pump of car for feeding fuel oil into a provision oil reservoir and mixing with an additive. An oil pump of the present invention is connected with the car power supply and starting oil pump, and a solution of oil and additive extracted from the oil reservoir are fed into an oil spraying system by a filter for cleaning the nozzle and valve. The oil spraying system has an oil return tube for returning a part of the oil back into the provision oil reservoir for cycling use.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: March 30, 1999
    Inventor: John Tsou