Patents by Inventor Shu C. Yu

Shu C. Yu 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).

  • Safe actuating mechanism for an automatic umbrella
    Patent number: 5566698
    Abstract: The invention relates to a safe actuating mechanism for an automatic umbrella, mainly including a security body arranged inside an umbrella handle, where the security body forms an actuating mechanism in combination with inner and outer tubes, a connecting rod, and a specially designed button so that the umbrella can be operated automatically under various spring forces.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: October 22, 1996
    Inventor: Shu C. Yu