Patents by Inventor Chen Jing-Qi, deceased

Chen Jing-Qi, deceased 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).

  • Patent number: 5165389
    Abstract: The hula chair includes an upper base (23) and an intermediate base (21). The bases (21 and 23) are linked together by the specially designed oversized universal joint which is combined by two components: the ring (16) and the plate/spacer (17). The plate/spacer (17) is connected to the upper base (23). The ring (16) is connected to the intermediate base (21) by the stud (19). The upper base (23), can swivel-rock individually from the intermediate base (21), because of a universal joint (16, 17, 19). Two sets of three cams (10a, 10b, 10c and 20a, 20b, 20c) are placed under the plate-spacer (17) and on the intermediate base (21). A block (6), which is positioned at the center of the intermediate base (21), can slide inside a slot (7). The crankshaft (9) goes through the block (6) and the intermediate base (21 ). Three arms (11a, 11b, 11c), can vertically slide on the top end of the crankshaft (9).
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: November 24, 1992
    Inventors: Chen Jing-Qi, deceased, by Judy C. Huai-Xue Zhu, heir