Patents by Inventor Nianlu Liu

Nianlu Liu 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).

  • Low-water-flow toilets and low-water-flow urinals
    Patent number: 8490222
    Abstract: A low-water-flow toilet having a toilet body, a funnel, a floating ball with a pull wire, water sealing structures, a toilet seat with a rotating shaft, an upper cover, and a plastic fender cover. The water sealing structures include an inner water sealing trap (11) of the toilet body, an outer water sealing trap (12) of the toilet body, a rotating groove arranged on the inner side of the inner water sealing trap (11), and a rotating groove arranged on an outer side of the outer water sealing trap (11). A low-water-flow urinal, having a urine storage bottle (18), a funnel having a water sealing trap (20), a floating ball with a pull wire and a pull ring (21), and an upper cover (23) of the urine storage bottle.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: July 23, 2013
    Assignee: Tianjin Wanlu Limited Company of Science and Technology
    Inventor: Nianlu Liu