Patents by Inventor Dexter Chih-Teh Liu

Dexter Chih-Teh Liu 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: 5672090
    Abstract: A toy includes an equine-shaped hollow figure with hooves that are transparent or translucent. A light-emitting source is mounted inside each of the figure's legs so as to internally illuminate the hoof when the light-emitting source is illuminated. A battery power source is located within the hollow figure with a wiring circuit within the figure that electrically connects the battery power source and the light-emitting source. A motion switch is interposed in the wiring circuit between the battery power source and the light-emitting source and oriented to effect opening and closing of the switch as the figure is rocked in forward and rearward directions. One motion switch embodiment includes a rolling ball and is oriented in the hollow figure such that the rolling ball has a travel direction within the switch generally parallel to a front-to-rear longitudinal axis of the hollow figure.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: September 30, 1997
    Assignee: LCD International L.L.C.
    Inventor: Dexter Chih-Teh Liu
  • Patent number: 5662244
    Abstract: A toy weapon for firing a charge of water includes a housing, water reservoir and a reciprocating piston mounted within a tube in the housing. The tube has a spring-biased, hinge mounted flap valve located at one end of the tube to effectively close the tube end. This valve also creates a sufficiently air-tight seal to allow the water charge to be suctioned from the reservoir into the tube. The tube holds the water charge, which is drawn into the tube on a back stroke of the piston, through a one-way valve in a conduit that connects the reservoir with the tube. The weapon is fired on a forward piston stroke, the water charge being pressurized in the tube and released as a single slug or burst of large droplets when the flap valve opens under increasing pressure of the water charge. A nozzle is provided downstream from the flap valve to help keep the water charge together and increase the velocity of the water as it is discharged from the weapon.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: September 2, 1997
    Assignee: LCD International, L.L.C.
    Inventors: Dexter Chih-Teh Liu, Douglas F. Melville, Jr.
  • Patent number: 5643036
    Abstract: A toy vehicle has a drive wheel and a flywheel that are coupled together by a slip clutch which includes a flexible pawl extended from the drive wheel to the surface of the flywheel so that the drive wheel may be grasped and brought to an immediate stop without injury. The toy vehicle cooperates with the energizer-launcher so that the toy vehicle is spring catapulted therefrom upon release thereof. The energizer-launcher has a pistol grip handle with trigger for one-handed aiming and launching of the vehicle and a pull cord for accelerating the flywheel and drive wheel while the launcher is being held by the pistol grip handle. A tachometer may be provided on the energizer-launcher. The toy vehicle further may have a spark generator on the drive wheel which is activated by the rotation of the drive wheel after the vehicle is launched.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: July 1, 1997
    Assignee: LCD International, L.L.C.
    Inventors: Dexter Chih-Teh Liu, Douglas Melville, Jr.