Patents by Inventor Ching-Miin Wu

Ching-Miin 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).

  • Hand-held type stirring device adapted for use in containers of different sizes
    Patent number: 5848841
    Abstract: A handheld type stirring device including a body, a dust protective cover, and a stirring rod. A divergent end of a bowl-shaped dust protective cover is fitted over a corresponding bowl-shaped portion of the body, and a funnel-shaped top portion of the stirring rod is fitted in between an outer water seal ring and an inner dust protective ring of the dust protective cover. The spindle of a motor within the body is positioned in a receiving notch of the top portion of the stirring rod. Any fine particles generated during rotation of the motor are received in the dust protective cover. The bowl-shaped portion and the dust protective cover together ensures that the mouth of a container can be properly closed during stirring even if they are placed obliquely on the container's opening.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: December 15, 1998
    Inventor: Ching-Miin Wu