Patents by Inventor Qingru Chen

Qingru 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).

  • High capacity dry separation apparatus with air-heavy medium fluidized bed
    Patent number: 5392922
    Abstract: A high capacity dry separation apparatus with air-heavy medium fluidized bed having a separation chamber (3) with a fluidized bed above an air distributor (4), a scraper conveyer (2) in the separation chamber (3) having a double-scraper structure made up of two columns of scrapers moving side by side, and a sink discharge outlet (8) at one end of the separation chamber. An up-floating materials discharge outlet (11) and a feed inlet (12) are arranged on opposite sides of the separation chamber (3). An inclined inner circulator (7) for heavy medium is provided in the separation chamber and includes an air inlet tube (13), a cone-shaped buffer chamber (14), a sieve layer (15), a multilayer fabric (16) and a sintered metal plate (17).
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 28, 1995
    Assignee: China University of Mining and Technology
    Inventor: Qingru Chen