Patents by Inventor Shu-Ki Yeung

Shu-Ki Yeung 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: 8516623
    Abstract: Tilting Bowl Toilet comprises a frame, a toilet basin, and a tilting bowl. The tilting bowl is supported below the toilet basin to receive and hold water/waste delivered from the toilet basin. The tilting bowl tilts to discharge its content to drainage. The tilting bowl at standby is sustained to stay in a horizontal position by a sustaining turning moment about its support axis. When water is added, the turning moment produced by the tilting bowl with its content becomes larger than the sustaining turning moment, and the tilting bowl moves to a tilted position to discharge its content. As the tilting bowl tilts, the sustaining turning moment is simultaneously reduced to accelerate bowl tilting for efficient discharge of waste to sewage.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: August 27, 2013
    Inventor: Shu-Ki Yeung
  • Patent number: 8065756
    Abstract: Tilting Bowl Toilet comprises a frame, a toilet basin, and a tilting bowl. The tilting bowl is supported below the toilet basin to receive and hold water/waste delivered from the toilet basin. The tilting bowl tilts to discharge its content to drainage. The tilting bowl at standby is sustained to stay in a horizontal position by forces applied to the tilting bowl creating a resultant sustaining turning moment about its support axis. When the turning moment produced by the tilting bowl with its content becomes larger than the sustaining turning moment, the tilting bowl moves to a tilted position to discharge its content. The effective support axis shifts with respect to the tilting bowl as guided by a motion guide.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: November 29, 2011
    Inventor: Shu-Ki Yeung
  • Publication number: 20090188032
    Abstract: Tilting Bowl Toilet comprises a frame, a toilet basin, and a tilting bowl. The tilting bowl is supported below the toilet basin to receive and hold water/waste delivered from the toilet basin. The tilting bowl tilts to discharge its content to drainage. The tilting bowl at standby is sustained to stay in a horizontal position by a sustaining turning moment about its support axis. When water is added, the turning moment produced by the tilting bowl with its content becomes larger than the sustaining turning moment, and the tilting bowl moves to a tilted position to discharge its content. As the tilting bowl tilts, the sustaining turning moment is simultaneously reduced to accelerate bowl tilting for efficient discharge of waste to sewage.
    Type: Application
    Filed: November 28, 2008
    Publication date: July 30, 2009
    Inventor: SHU-KI YEUNG
  • Publication number: 20090031487
    Abstract: Tilting Bowl Toilet comprises a frame, a toilet basin, and a tilting bowl. The tilting bowl is supported below the toilet basin to receive and hold water/waste delivered from the toilet basin. The tilting bowl tilts to discharge its content to drainage. The tilting bowl at standby is sustained to stay in a horizontal position by forces applied to the tilting bowl creating a resultant sustaining turning moment about its support axis. When the turning moment produced by the tilting bowl with its content becomes larger than the sustaining turning moment, the tilting bowl moves to a tilted position to discharge its content. The effective support axis shifts with respect to the tilting bowl as guided by a motion guide.
    Type: Application
    Filed: December 18, 2007
    Publication date: February 5, 2009
    Inventor: SHU-KI YEUNG
  • Patent number: 6076197
    Abstract: The disinfecting toilet seat system comprises a toilet seat with at least one seat surface, disinfecting means for disinfecting said toilet seat, containing means to hold said disinfecting means, means to trigger disinfection, means mounting said toilet seat for pivoting movement and/or seat surface sequencing relative to said containing means, and means mounting said containing means for pivoting movement relative to said toilet seat and/or mounting said containing means between said toilet seat and a toilet bowl, wherein said containing means comprises at least one element generally matching said at least one seat surface, and maintains said toilet seat disinfecting means in orientation to facilitate application of disinfection to said toilet seat when said containing means and said toilet seat are within predetermined proximity of each other.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: June 20, 2000
    Inventor: Shu-Ki Yeung
  • Patent number: 6076200
    Abstract: A toilet including a frame defining a chamber, a toilet bowl disposed within the chamber between an upper and a lower chamber region, and a tilting bowl in the lower chamber region of the frame. The toilet bowl in the lower discharge opening in communication between the upper and lower chamber regions. The tilting bowl defines a fluid-receiving volume, and is mounted for pivoting movement relative to the toilet bowl between a first position with the fluid-receiving volume at least partially overlapping the toilet bowl and containing the lower discharge opening, and a second position permitting flow of fluid from the toilet bowl, through the lower discharge opening, and from the fluid-receiving volume into the lower chamber region. At standby, the tilting bowl, in the first position, retains a first volume of fluid sufficient to engage the lower discharge opening and restrict flow of gas therethrough.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: June 20, 2000
    Inventor: Shu-Ki Yeung
  • Patent number: 6070276
    Abstract: To eliminate the necessity of a water tank, this invention converts the traditional toilet bowl with siphonic water trap into a toilet basin with a tilting-bowl. The toilet includes a frame, a toilet basin, a tilting bowl and a trigger means. The tilting bowl is mounted to pivot as a movable water/waste container. In its not tilted horizontal position, the tilting bowl receives and holds water/waste delivered to it through the toilet basin. When the tilting bowl tilts, it discharges its content to drainage pipe through a bottom discharge hole; simultaneously allowing water/waste to discharge from basin to drainage. The tilting bowl is normally retarded to stay in its horizontal position by forces applied to the tilting bowl creating a resultant retarding turning moment about its pivot point larger than the turning moment produced by the tilting bowl with its content.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: June 6, 2000
    Inventor: Shu-Ki Yeung
  • Patent number: 5802627
    Abstract: A toilet including a frame defining a chamber, a toilet bowl disposed within the chamber between an upper and a lower chamber region, and a tilting bowl in the lower chamber region of the frame. The toilet bowl has a lower discharge opening in communication between the upper and lower chamber regions. The tilting bowl defines a fluid-receiving volume, and is mounted for pivoting movement relative to the toilet bowl between a first position with the fluid-receiving volume at least partially overlapping the toilet bowl and containing the lower discharge opening, and a second position permitting flow of fluid from the toilet bowl, through the lower discharge opening, and from the fluid-receiving volume into the lower chamber region. At standby, the tilting bowl, in first position, retains a first volume of fluid sufficient to engage the lower discharge opening and restrict flow of gas therethrough.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: September 8, 1998
    Inventor: Shu-Ki Yeung