Patents by Inventor Kung-Ming Chu

Kung-Ming Chu 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: 5509946
    Abstract: An indoor air filter is provided. The indoor air filter has a housing including a water tank, an air pump, an air inlet, an air outlet, an air pump positioned between the air inlet and outlet, and an air circulation section between the air inlet and the air pump. The air circulation section is defined a pair of partitions enclosing first and second turbulent boards which enclose a foam filter and an active carbon layer. The housing also has a filter screen positioned between the air circulation section in the air inlet and a conduit for spreading water from the water pump into the inlet air for subsequent filtering by the filter screen and the air circulation section.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: April 23, 1996
    Inventor: Kung-Ming Chu
  • Patent number: 5493737
    Abstract: A toilet apparatus having a device for deodorizing a toilet is provided. The device includes a housing, a cover for the housing, a base for mounting the housing on the toilet water tank, a pump disposed in the water tub, and a sensing unit. The housing comprises a mist sprayer positioned at a top portion thereof adjacent an inlet for gas from the toilet, a first partition member disposed at one side of the mist sprayer adapted to block the water sprayed, and a second partition member spaced from the first partition to form a pair of chambers. The second partition member has a notch formed therein which allows air flow from the first chamber to the second chamber. The first chamber has the mist sprayer, a guiding media, and an activated carbon box therein. The second chamber has a gas exhauster which has a gas outlet conduit disposed at a bottom portion and extending through the base. The base is seated on top of the toilet water tank.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: February 27, 1996
    Inventor: Kung-Ming Chu