Patents by Inventor Chiuan Chen

Chiuan Chen 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: 20070029005
    Abstract: An automatic liquid metering apparatus is disposed with at least a liquid concentrate motor pump with a tube connected thereto and at least a diluting water motor pump with a tube connected thereto where the turning of the pumps is timed by a microprocessor to control the amounts of liquid concentrate and diluting water to be dispensed. The outlet tubing of the pump is connected to the outlet of liquid concentrate and diluting water via a check valve. A lift mechanism is provided at the concentrate/diluting water outlet, which allows the choice of small cup, medium cup or large pot by ascending or descending to the proper height. The stop point of the lift mechanism is microprocessor controlled to prevent the spurting of dispensed liquid concentrate and diluting water due to great distance between their outlet and the rim of cup to ensure sanitary and smooth dispensing of fluids. This invention features precision dispensing of concentrate and diluting water and low manufacturing costs.
    Type: Application
    Filed: July 17, 2006
    Publication date: February 8, 2007
    Inventors: Shih Huang, Chiuan Chen