Patents by Inventor Chang-Ren Wu

Chang-Ren Wu 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).

  • Door lock permitting easy change in lock core assembly orientation
    Patent number: 9540848
    Abstract: A door lock (10) includes a driving device (30) having an outer spindle (36) and an outer handle (38) mounted to the outer spindle (36). A mounting member (56) is rotatably mounted in a compartment (46) of the outer handle (38). A positioning member (72) is movably received in a groove (54) of the outer handle (38). When a lock core (74) disengages from the mounting member (56), the mounting member (56) cannot move along a longitudinal axis but can pivot about a pivotal axis relative to the outer handle (38) to change a positional relationship between first and second holes (64, 66) of the mounting member (56). After the lock core (74) engages with the mounting member (56), the mounting member (56) cannot pivot about the pivotal axis relative to the outer handle (38).
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 10, 2017
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Chang-Ren Wu