Patents Assigned to Multi Wisdom Limited
  • Patent number: 8661594
    Abstract: Disclosed herein is cleaning structure attachable to a submersible pool cleaning vehicle (PCV). In one exemplary embodiment the PCV has an endless loop track and a chassis therefore. The cleaning structure attaches to the chassis and acts as a cap covering the drive wheels and track. The cleaning structure includes a base and bristles extending outwardly therefrom. The bristles define fingers. In one embodiment, the fingers are of a uniform length. In another embodiment, the fingers are of a graduated length. Others embodiments include the fingers being distributed on the base in a random pattern. In one embodiment, the cleaning structure defines a single insert. In another, the cleaning structure includes multiple inserts.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: March 4, 2014
    Assignee: Multi Wisdom Limited
    Inventors: Wing-kin Hui, Wing-tak Hui
  • Patent number: 8207448
    Abstract: Disclosed herein is an electrically conductive buoyant cable. The cable includes an electrical conductor member having at least one electrical conductor. The cable also includes a filler layer that consists of buoyant materials with relative density lower than 1. The filler layer surrounds and encloses the electrical conductor member. The invention includes a jacket, which, in one embodiment, contains a small quantity of filler material or no filler material. The jacket surrounds the filler layer. In one embodiment, the filler layer and the jacket are made of the same material.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: June 26, 2012
    Assignee: Multi Wisdom Limited
    Inventor: Wing-kin Hui