Patents by Inventor Chern Jenn-Rong

Chern Jenn-Rong 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: 5042277
    Abstract: A push-button digital combination padlock including a seat board, a digit-wheel means composed of several digit-wheels, sleeves, wheel shaft, compression spring and elastic plate, a restoring spring, an abutting bar, a movable lock latch and an upper cover associated with the seat board, wherein a frame block is disposed at front end of the wheel shaft, and the movable lock latch is formed with a down-pressing protrusion and passive protrusion, whereby when the digit-wheels are arranged to correct digit position, and shaft can be displaced, permitting a button member of the abutting bar to be pressed so as to push the passive protrusion, making the integrated down-pressing protrusion downward press the frame block and thus permitting the lock bar to move and unlock the padlock.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: August 27, 1991
    Inventor: Chern Jenn-Rong