Patents by Inventor Henry C. Tong

Henry C. Tong 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: 20130312177
    Abstract: A magnetic drain stopper for use in a basin drain. A stopper is disposed for reciprocation in the drain pipe and includes a stopper magnet. A curvilinear actuator outside the drain pipe supports one or more driver magnets for movement in a non-linear path toward and away from the stopper magnet. When moved toward the stopper magnet, the driver magnets induce the stopper to lift away from a sealed condition so that water can exit the basin. The curvilinear actuator may include a generally cylindrical base captured in a sleeve-like hinge bracket. A control rod is coupled to a push rod that receives manual input from a user. A pair of flanking legs may be attached to the ends of the base, with each leg carrying a driver magnet half. The curvilinear actuator may include an optional draw-down magnet to hold the stopper in its sealed condition.
    Type: Application
    Filed: June 13, 2012
    Publication date: November 28, 2013
    Inventor: Henry C. Tong