Patents by Inventor Yun-Yi Chang

Yun-Yi Chang 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: 7152443
    Abstract: A lockable case includes a base casing having two opposite first lateral walls, a top cover openably connected to the base casing, a slide block, and two slide bars disposed respectively on two opposite sides of the slide block. Each slide bar has an inner end, and a locking element to engage a corresponding first lateral wall. The slide block is disposed between the inner ends of the slide bars, and is movable between locking and unlocking positions that respectively prevents and permits inward movement of the slide bars. An actuating lever is connected pivotally to the slide block to move the slide block to the locking position. An elastic member is provided for biasing the slide block toward the unlocking position.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: December 26, 2006
    Assignee: Universal Scientific Industrial Co., Ltd.
    Inventors: Yun-Yi Chang, Chien-Ta Lin, Kuo-Kuang Liu
  • Publication number: 20060150692
    Abstract: A lockable case includes a base casing having two opposite first lateral walls, a top cover openably connected to the base casing, a slide block, and two slide bars disposed respectively on two opposite sides of the slide block. Each slide bar has an inner end, and a locking element to engage a corresponding first lateral wall. The slide block is disposed between the inner ends of the slide bars, and is movable between locking and unlocking positions that respectively prevents and permits inward movement of the slide bars. An actuating lever is connected pivotally to the slide block to move the slide block to the locking position. An elastic member is provided for biasing the slide block toward the unlocking position.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 13, 2006
    Inventors: Yun-Yi Chang, Chien-Ta Lin, Kuo-Kuang Liu
  • Patent number: 6637066
    Abstract: A comfortable bathing scrubber includes a tubular flexible mesh member which is corrugated sinuously, stitched and fastened with a pair of elastic bands or strips longitudinally about a longitudinal axis of the tubular mesh member and then wound to form an annular ring member of the flexible mesh member, of which two opposite ends of the ring member are finally tied or fastened to obtain a spherical bathing scrubber for comfortably bathing or rubbing a user's body without scratching or injuring her or his skin.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: October 28, 2003
    Inventor: Yun-Yi Chang