Patents by Inventor S. W. Chen

S. W. 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).

  • Ceiling fan control switch box
    Patent number: 5508484
    Abstract: A ceiling fan control switch box, which includes a casing, a pull switch received inside the casing and having a hollow screw rod extended out of a wire hole on the casing and fixed in place by a screw nut, an angle pipe having raised ribs on the inside fitting around the screw nut to stop water from entering the wire hole, a fan motor forward/backward switch received inside the casing and having a switching lever extended out of an opening on the casing, and a flexible water sealing cap fastened to the casing and mounted around the switching lever to stop water from entering the casing through the opening without affecting the switching operation of the switching lever.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: April 16, 1996
    Assignee: Air Cool Industrial Co., Ltd.
    Inventor: S. W. Chen