Patents by Inventor Shih-Tza Wu

Shih-Tza 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).

  • Patent number: 8418981
    Abstract: Mechanisms, devices, apparatus, systems and methods of installing ceiling fan motor housings to ceiling mounted plates without using loose fasteners such as screws, and the like. A plate having a plurality of slots about the perimeter can be pre-mounted to a ceiling. A motor housing having clips on interior perimeter edges of the base can be positioned so that the clips are inserted into the slots. Next, the motor housing can be twisted clockwise until the clips lock to the slots allowing the ceiling fan motor to be hung without any loose fasteners. The twist-lock eliminates unsightly fasteners, such as screws underneath the housing, quickens installation time, and is easier and safer than traditional ceiling fan installation techniques.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: April 16, 2013
    Assignee: Chien Luen Industries Co., Ltd., Inc.
    Inventors: Tien S. Lowe, Shih-Tza Wu
  • Patent number: 6210117
    Abstract: Captive fasteners and alignment posts for allowing ceiling fan blade arms to be easily and safely mounted onto ceiling mounted motors. Fasteners such as Philips head screws, regular head screws and bolts can be held captive in place on blade mounting arms with rubber grommet type washers. The grommet type washers have portions that can be sandwiched between the fastener head and the mounting arms and sandwiched between the mounting arms and rotating member on the ceiling fan motor in order to reduce vibration noise and movement Alternatively, novel captive fasteners having a thicker neck portion between a threaded end a the bead can be positioned within the grommet type washers. A second embodiment of the captive fastener is floatingly supported within the mounting arm between the fastener head and a ledge within the mounting arm through-hole, with an enlarged threaded end of the fastener on the opposite side of the ledge.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: April 3, 2001
    Assignee: King of Fans, Inc.
    Inventors: Charles E. Bucher, John C. Bucher, Shih-Tza Wu
  • Patent number: 5542819
    Abstract: A ceiling fan safety tether to be used with a conventional ceiling fan. The ceiling fan safety tether retains a fan blade in close proximity to the fan motor thereby preventing the fan blade from becoming a flying projectile should a break in a fan blade bracket ever occur. The ceiling fan safety tether comprises a body portion having a first and second securement coupled thereto. The first securement is secured to the fan motor housing and the second securement is secured to the fan blade. The ceiling fan safety tether is designed to be interposed between the fan blade bracket and the fan motor housing at a first end and interposed at a second end between the fan blade and the fan blade bracket. Additionally, the ceiling fan safety tether serves to provide a dampening effect that prevents noise and vibrations created in the fan motor housing from being transmitted to the fan blade.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: August 6, 1996
    Assignee: Chien Luen Industries Company, Ltd., Inc.
    Inventors: John C. Bucher, Shih Tza Wu