Patents by Inventor K. Y. Hung

K. Y. Hung 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: 7179105
    Abstract: A power supply with a changeable plug element includes a plug housing and a plug element mounted moveably on the plug housing. The plug housing includes a front cover (1), a circuit board (2), a rear cover (4) and a pair of connecting sheets (5). The rear cover (4) and the front cover (1) engage with each other and contain the circuit board (2). The plug element includes a plug lid (6), a pair of elastic sheets (7) and a base (8) with pins. The plug lid (6) is mounted on the base (8) to form a receiving space, and the elastic sheets (7) are received in the receiving space and connect with pin wires. The plug lid (6) can insert into the plug housing and the connecting sheets (5) may engage with the elastic sheets (7). The present invention has simple structure and low cost and can be operated conveniently.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 20, 2007
    Inventor: K. Y. Hung
  • Publication number: 20060226808
    Abstract: A charger (10) with replaceable plugs of the present invention includes a back cover (30) having a slide groove (32) set on the lower wall, two holes (34) are excavated at the undersurface of the slide groove and, a ā€œZā€ shaped key being provided on the groove. The plug portion (40) of the charger has a base (411), a clasp (414) is installed on the bottom of the top portion to engage with the secure fastener on the back cover. The charger further includes an elastic tab (60) to joint the PCB board (50) with all kinds of plugs thus conduct the power supply. The plug is not easily fall off due to the design of the clasp is mounted into the secure fastener. The structure of the charger is simple, the charger is easy for plug in and safety in using, and the cost is lower.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 12, 2006
    Inventor: K.Y. Hung