Patents by Inventor Duyong Liang

Duyong Liang 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: 20070095885
    Abstract: A cash register is provided with a pilfer prevention construction. Openings are formed in both the cash tray and the bottom panel of the sliding drawer as well as the bottom panel of the cash register. The opening of the sliding drawer is covered with a transfer door panel hingedly mounted at its front edge to the bottom panel of the drawer. A spring-biassed latch maintains the transfer door panel in a closed position when the drawer extends outside the cash register. A control means is provided which is operative to release the latch so that the transfer door panel will swung open downwards through the opening of the bottom of the cash register to dispense money from cash tray into a safety deposit box located below the cash register. The transfer door panel will be automatically closed whenever the sliding drawer moves outwards.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventor: Duyong Liang