Patents by Inventor Tak Lun Liu

Tak Lun Liu 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: 6540071
    Abstract: A case for holding two compact discs or the like including first and second cover parts pivotally connected together so that they can be pivoted between a closed position facing each other and an open position. The cover parts and the structure for pivotally connecting them together is of the type for holding a single compact disc. A tray comprises a planar body portion and an anchor portion, the tray body portion including an annular rosette of fingers on each side thereof for releasably securing a compact disc thereto, the tray body and the tray anchor being pivotally connected together and the tray anchor being secured to one of the cover parts. As a result, when the cover parts are pivoted to an open position the tray body can be pivoted about the tray anchor to facilitate installation and removal of compact discs from both sides of the tray body.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: April 1, 2003
    Inventor: Tak Lun Liu
  • Publication number: 20020038770
    Abstract: A case for holding two compact discs or the like including first and second cover parts pivotally connected together so that they can be pivoted between a closed position facing each other and an open position. The cover parts and the structure for pivotally connecting them together is of the type for holding a single compact disc. A tray comprises a planar body portion and an anchor portion, the tray body portion including an annular rosette of fingers on each side thereof for releasably securing a compact disc thereto, the tray body and the tray anchor being pivotally connected together and the tray anchor being secured to one of the cover parts. As a result, when the cover parts are pivoted to an open position the tray body can be pivoted about the tray anchor to facilitate installation and removal of compact discs from both sides of the tray body.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 4, 2002
    Inventor: Tak Lun Liu
  • Patent number: 6286671
    Abstract: A case for holding two compact discs including first and second cover parts pivotally connected together so that they can be pivoted between a closed position facing each other and an open position and characterized by a tray comprising a planar body portion and an anchor portion, the tray body portion including an annular rosette of fingers on each side thereof for releasably securing a compact disc thereto, the tray body and the tray anchor being pivotally connected together and the tray anchor being secured to one of the cover parts. As a result, when the cover parts are pivoted to an open position the tray body can be pivoted about the tray anchor to facilitate installation and removal of compact discs from both sides of the tray body. The separate tray body and anchor portions together with the nature of the pivotal connection therebetween provide a structure which is strong and long-lasting and which is compatible with automated assembly techniques.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: September 11, 2001
    Inventors: Tak Lun Liu, Kwok Din Lau
  • Publication number: 20010001442
    Abstract: A case for holding two compact discs or the like including first and second cover parts pivotally connected together so that they can be pivoted between a closed position facing each other and an open position. The cover parts and the structure for pivotally connecting them together is of the type for holding a single compact disc. A tray comprises a planar body portion and an anchor portion, the tray body portion including an annular rosette of fingers on each side thereof for releasably securing a compact disc thereto, the tray body and the tray anchor being pivotally connected together and the tray anchor being secured to one of the cover parts. As a result, when the cover parts are pivoted to an open position the tray body can be pivoted about the tray anchor to facilitate installation and removal of compact discs from both sides of the tray body.
    Type: Application
    Filed: December 8, 1998
    Publication date: May 24, 2001
    Inventor: TAK LUN LIU
  • Patent number: 5727680
    Abstract: A tray for holding a compact disc wherein the tray comprises a plate having a central region, an annular array of fingers in the central region for receiving the opening of the compact disc and an impact resistance shield within and below the annular array of fingers for receiving impact forces directed toward the fingers and for distributing the forces to the plate so as to protect the fingers from breakage upon impact. The impact resistance shield comprises a central body portion or core and a plurality of radially outwardly extending arms or tentacles located between adjacent fingers and extending into the plate. During impact the central body portion or core radiates the energy of impact directly outwardly and acts as a buffer for the fingers. The central core has a concave outwardly directed face positioned below the tips of the fingers which allows room for the fingers moving downwardly without hinderance for easy removal of the compact disc.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 17, 1998
    Inventor: Tak Lun Liu