Patents by Inventor Xiaohua Liang

Xiaohua Liang 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: 8678255
    Abstract: A personal portable devices keeper (10) and its method of use are disclosed. The keeper mainly comprises a housing formed by a shell (12) and a base (14), a spool assembly (16) controlled by a spiral spring (18) and a ratchet mechanism consisting of a ratchet plate (32) in the spool, a ratchet bead (20), and a straight slot (50) in the base, a clip (22), and a length of cord (24) with a bob (72) securing a strap loop (90). The shell has a cord port (28) and is rotatable independently from the spool so that the cord remainder is adjustable even after the cord is fully retracted by the spring. The strap loop ties a personal portable device directly through its strap holder or the like. The keeper is fully operable through the cord dragged by the portable device that is normally held and operated by one hand.
    Type: Grant
    Filed: May 8, 2010
    Date of Patent: March 25, 2014
    Inventors: Zhengping Zhang, Xiaohua Liang, Liang Zhang
  • Publication number: 20120055965
    Abstract: A personal portable devices keeper (10) and its method of use are disclosed. The keeper mainly comprises a housing formed by a shell (12) and a base (14), a spool assembly (16) controlled by a spiral spring (18) and a ratchet mechanism consisting of a ratchet plate (32) in the spool, a ratchet bead (20), and a straight slot (50) in the base, a clip (22), and a length of cord (24) with a bob (72) securing a strap loop (90). The shell has a cord port (28) and is rotatable independently from the spool so that the cord remainder is adjustable even after the cord is fully retracted by the spring. The strap loop ties a personal portable device directly through its strap holder or the like. The keeper is fully operable through the cord dragged by the portable device that is normally held and operated by one hand.
    Type: Application
    Filed: May 8, 2010
    Publication date: March 8, 2012
    Inventors: Zhengping Zhang, Xiaohua Liang, Liang Zhang