Patents by Inventor Weitong Zhu

Weitong Zhu 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: 9194160
    Abstract: A security device for securing a male contact of a cable plug within a female port. A base has a receptacle configured to receive a boot. The base and the boot house a female and a male electric contacts. The boot and the receptacle have complimentary threads enabling the boot to be screwed into the receptacle. A movable pin resides within the boot. The receptacle has a channel adapted to receive the pin. The pin and the channel align when the boot is fully screwed into the receptacle, and the pin enters the channel, thereby securing the boot within the receptacle. In this configuration, the male contact is within the female port. A magnet key is used to retract the pin to release the boot.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: November 24, 2015
    Assignee: Vanguard Products Group, Inc.
    Inventors: Christopher A. Kelsch, John N. Figh, Jr., Lucas P. Swartwood, Weitong Zhu
  • Patent number: 9105166
    Abstract: An anti-theft bracket for interactively displaying electronic gadgets. An electronic sensor is attached to the back of the gadget. An annular base surmounts the sensor. A circumferential channel is disposed on a lateral surface of the annular base. At least one arm is slidingly received within the circumferential channel, whereby the arm can move radially about the annular base. A clamp is in sliding communication with the arm forming an arm-clamp assembly. The overall length of the assembly is adjustable by sliding the clamp along the arm. A clamping member is attached to the clamp. A corner of the gadget is received within the space between the clamping member and the clamp, thereby securing the gadget within anti-theft device. The distance between the clamping member and the clamp may be adjustable to accommodate the thickness of the gadget.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 11, 2015
    Assignee: Vanguard Products Group, Inc.
    Inventors: Christopher A. Kelsch, John N. Figh, Jr., Lucas P. Swartwood, Bruno M. L. Telles, Weitong Zhu
  • Patent number: 8816853
    Abstract: A self-shunting security system for detecting the absence or presence of a removable auxiliary alarm assembly for preventing theft of one or more products operatively connected to said system. A port is operatively attached to circuitry and is adapted to receive the removable auxiliary alarm assembly. A shunting assembly is also operatively attached to the circuitry and is disposed in relation to the port for detecting the absence or presence of the removable auxiliary alarm assembly within the port. The port and shunting assembly are in parallel electrical configuration. The shunting assembly automatically forms a first closed circuit when the removable auxiliary alarm assembly is not inserted into the port.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: August 26, 2014
    Assignee: Vanguard Products Group, Inc.
    Inventors: Christopher A. Kelsch, John N. Figh, Jr., Thomas J. Beach, Lucas P. Swartwood, Bruno M. L. Telles, Weitong Zhu