Patents by Inventor Bing J. Cherng

Bing J. Cherng 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: 5234122
    Abstract: This invention relates to a power fuel tank cover and in particular to one including a motor, a collar having a circular member and a tubular member formed at one side thereof, a worm rod inserted into the tubular member of the collar, a sleeve fitted into said collar, a worm gear mounted on the sleeve and engaged with the worm rod, an actuating cylinder with external threads being threadedly engaged with the center hole of the worm gear, a lid pivotally connected with an upper portion of the actuating cylinder and having a seat with a groove at a bottom, a positioning plate on a top and a hole extending through the seat and the positioning plate for receiving a ball, a plug and a spring, a connecting member pivotally connected between the collar and the lid, and a press plate threadedly engaged with the positioning plate by a screw connected with a linking rod via a ring which is in turn connected with a fixing plate, whereby the fuel tank may be automatically opened and closed simply by pressing a switch ne
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: August 10, 1993
    Inventor: Bing J. Cherng