Patents by Inventor Joseph Wing-Tak Hui

Joseph Wing-Tak Hui 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: 20150233135
    Abstract: Disclosed herein is a method and apparatus for cleaning a designated area in an automated and efficient manner. In one exemplar embodiment, an automated pool cleaning vehicle includes the capability of being programmed to perform various cleaning movements. The program is stored in the memory of the APV and executed upon command. The program for cleaning includes the ability to do the full area or only a portion of it. The automated cleaning device may be manually program or program using a remote device such as a cell phone. In an exemplary embodiment various basic movements are strung together to form the desired pattern and that pattern is stored in the automated cleaning device.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 20, 2015
    Inventors: Wing-kin HUI, Joseph Wing-Tak Hui
  • Patent number: 7213287
    Abstract: A self-propelled swimming pool cleaner which randomly covers the bottom of the pool. Water pumped from the bottom of the unit filters dirt carried thereby, then uses the pumped water to propel the device either forward or backward. A pivoted front axle causes the path of the unit to vary when changing from forward to backward so that the unit randomly covers the entire pool bottom. Spring loaded doors may be provided to allow water to exit when the unit is lifted out of the pool. A sealed motor unit has a metal portion to transfer heat from the motor.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: May 8, 2007
    Assignee: Smartpool, Inc.
    Inventor: Joseph Wing-Tak Hui
  • Patent number: 7077537
    Abstract: An underwater light for use with soft-sided aboveground pools includes a watertight light fixture utilizing a low voltage (12V) current for use in underwater illumination of a swimming pool. A mounting assembly is provided that is attached to the light fixture for allowing attachment of the assembly to a support frame of a soft-sided aboveground pool. A transformer is provided for containing controls for an automatic timer and for providing variable intensity lighting to the system.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: July 18, 2006
    Assignee: Smartpool, Inc.
    Inventor: Joseph Wing-Tak Hui
  • Publication number: 20030159723
    Abstract: A self-propelled swimming pool cleaner which randomly covers the bottom of the pool. Water pumped from the bottom of the unit filters dirt carried thereby, then uses the pumped water to propel the device either forward or backward. A pivoted front axle causes the path of the unit to vary when changing from forward to backward so that the unit randomly covers the entire pool bottom. Spring loaded doors may be provided to allow water to exit when the unit is lifted out of the pool. A sealed motor unit has a metal portion to transfer heat from the motor.
    Type: Application
    Filed: January 16, 2003
    Publication date: August 28, 2003
    Inventor: Joseph Wing-Tak Hui
  • Patent number: 5701981
    Abstract: A retractable and extendable electrical cord, for positioning in a wall and having a hollow housing, one or more reels rotatably mounted within the hollow housing, an electrical cord wound upon each reel, a retraction spring connected to each reel for rewinding the reel to retract the cord, first and second electrical contact members mounted on the reel in spaced apart relation, and ends of the electrical cord being connected to the contacts of said reel, first and second contact rings mounted within the housing and engageable by respective first and second electrical contacts, as the reel rotates, and electrical supply connections connected to the first and second contact rings. Also disclosed is a portable electrical cord extension and retraction device which can be plugged in to a conventional wall socket so that the cord can be extended to reach an appliance, and can be retracted when not required.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: December 30, 1997
    Inventors: Trevor Marshall, Joseph Wing-Tak Hui, Thomas Wong