Patents by Inventor Won Dong Yang

Won Dong Yang 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).

  • Compressed water supply system and supply device for dental unit-chair
    Patent number: 6179613
    Abstract: A pressurized water supply system for a dental unit-chair comprising a water purifier purifying or sterilizing water from a water supply source, and supplying the water to which a given pressure is applied to a medical instrument instrument. A pressurized water supply device for a dental unit-chair includes a case, an inflow tube provided to the case and connected to a water supply source, a pump installed within the case and connected to the inflow tube to jet out the water from the water supply source under a given pressure, a water purifier provided to the case in multi-stage and removing various alien substances, chemical substances, heavy metals, ions, germs, etc. from the water supplied from the pump, and A pressurized water supply tube provided to the case, connected with the water purifier, and connected to a medical instrument installed on the dental unit-chair, thus providing the compressed water thereto.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: January 30, 2001
    Inventor: Won Dong Yang