Patents by Inventor Lap-Sun Hui

Lap-Sun 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).

  • Patent number: 6863108
    Abstract: An applicator and reinforcer dispensing assembly for reinforcing holes in sheets of paper and other sheet materials that applies flat reinforcement rings about holes formed in those sheets is provided. A plurality of reinforcement rings are stacked one atop each other and are dispensed by the applicator. Various mechanisms for ensuring that the reinforcing rings are properly positioned in the applicator prior to application are also provided. A combination hole punch and reinforcing ring applicator is also provided.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: March 8, 2005
    Inventor: Lap-Sun Hui