Patents by Inventor Kim T. Bui

Kim T. Bui 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: 5080113
    Abstract: A water pipe has an upper tobacco burning bowl. The bowl is sealed into the top of a water chamber partially filled with water. A first narrow tube sealed into the bottom of the bowl extends below the bowl and into the water. A nipple connected to the side of the water chamber receives a conventional pipe stem or mouthpiece. When the user sucks on the mouthpiece, smoke is pulled down the small tube and bubbles through the water to cool and purify the smoke. A second narrow tube sealed into the nipple extends to the center of the chamber. When the partially filled chamber is tilted or inverted, the two tubes always extend above the water level, preventing loss of water. A small hole in the first tube above the water level prevents water being forced up into the bowl.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: January 14, 1992
    Inventor: Kim T. Bui