Patents by Inventor Li S. Zhu

Li S. Zhu 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).

  • Massage cushion for providing a hammering mode massage
    Patent number: 5361437
    Abstract: A soft cushion having a mechanism mounted therein for imparting electromagnetic hammering mode massage to its user, the device including an electromagnetic hammering mechanism, a clamping plate frame, and an electric control unit. The device is portable and may be used either as a soft cushion or as a hammering mode massage unit in which selection of the massage frequency, intensity and massage status is possible. The device may be held by hand, or put on a sofa, chair, bed, or car seat.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: November 8, 1994
    Assignee: Shanghai Intor Electrical Applicance Factory
    Inventors: Li S. Zhu, Wei He, Yu C. Huang, Wan S. Guo