Patents by Inventor D. C. Chen

D. C. 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).

  • Cord member control device for venetian blind
    Patent number: 7178576
    Abstract: A cord member control device is mounted in a bottom rail of a Venetian blind to support a lift cord and a ladder tape of the Venetian blind. The cord member control device includes a pulley assembly holding a pair of wheels over which the lift cord passes, and a locating member extended from the pulley assembly and fastened to a mounting hole of the bottom rail to secure the pulley assembly to the bottom rail. The locating member has a recessed open chamber and a transverse through hole, which extends across the recessed open chamber for the passing of front and rear tapes of the ladder tape for enabling the front and rear tapes of the ladder tape to be fastened together in the recessed open chamber with a clip.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: February 20, 2007
    Assignee: Nien Made Enterprise Co., Ltd.
    Inventors: Ming Nien, D. C. Chen, Julio Liu