Patents by Inventor Rong-Fu Hu

Rong-Fu Hu 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).

  • Lace winding device for shoes
    Patent number: 8231074
    Abstract: A lace winding device includes a base, a spool rotatably mounted in the base, a lace having two distal ends each extending through the base and each secured on the spool, a limit barrel mounted on the base, a drive member rotatably mounted in the limit barrel and connected with the spool to rotate the spool, and a ratchet block movably mounted on the limit barrel and engaging the drive member. Thus, the drive member is rotated in one direction only by limit of the ratchet block so that the spool is driven by the drive member to rotate in the positive direction only and cannot be rotated in the opposite direction so as to wind the lace easily and quickly.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 31, 2012
    Inventors: Rong-Fu Hu, Jin-Jia Hu
  • Lace Winding Device for Shoes
    Publication number: 20110303782
    Abstract: A lace winding device includes a base, a spool rotatably mounted in the base, a lace having two distal ends each extending through the base and each secured on the spool, a limit barrel mounted on the base, a drive member rotatably mounted in the limit barrel and connected with the spool to rotate the spool, and a ratchet block movably mounted on the limit barrel and engaging the drive member.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 15, 2011
    Inventors: Rong-Fu Hu, Jin-Jia Hu