Patents by Inventor Lynn Chen

Lynn Chen 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).

  • Top-and-bottom latch lock
    Patent number: 7013688
    Abstract: A top-and-bottom latch lock includes symmetrical L-shaped control rods provided with pressing portions for connecting to springs. The ends of the control rods are configured with braking pieces provided with bumps, and symmetrical gulfs are defined in a flat member to accommodate the bumps of the braking pieces. A turning axis having an opening is disposed above the flat member, and an oscillating shaft is disposed below the flat member. Accordingly, the control rods are extended outward or contracted inward through turning of a rotation body, a key or handles of the lock, thereby locking or opening a door.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: March 21, 2006
    Inventor: Lynn Chen
  • Top-and-bottom latch lock
    Publication number: 20040194519
    Abstract: A top-and-bottom latch lock includes symmetrical L-shaped control rods provided with pressing portions for connecting to springs. The ends of the control rods are disposed with braking pieces provided with bumps, so as to have symmetrical gulfs of a flat member accommodate the bumps of the braking pieces. Above and below the flat member are provided with a turning axis having an opening and an oscillating shaft, respectively, such that the control rods are extended outward or contracted inward through turning of a rotation body, key or handles of the lock, thereby locking or opening a door.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 7, 2004
    Inventor: Lynn Chen