Patents by Inventor Qijun Ni

Qijun Ni 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).

  • Passive self-ligating bracket
    Patent number: 10617491
    Abstract: The present invention discloses a passive self-ligating bracket, comprising a bracket body, wherein the middle part of the bracket body is sunken downwards to form an archwire slot; a locking piece in slide fit with the bracket body is arranged above the archwire slot; at least one locking position is provided on one of the bracket body and the locking piece; a fixing mechanism for fixing the locking piece at the locking position is arranged on one of the bracket body and the locking piece; the fixing mechanism comprises an elastic element located on one of the bracket body and the locking piece; the elastic element is provided with a bulge capable of being received at the locking position; when the locking piece is in a locked state, the bulge on the elastic element is received at the locking position; and when the locking piece is in an unlocked state, the end part of the bulge on the elastic element is in close abutment with one of the bracket body and the locking piece, and forces the elastic element to s
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: April 14, 2020
    Assignee: Hangzhou Xingchen 3B Dental Instrument & Material Co., LTD.
    Inventor: Qijun Ni
  • PASSIVE SELF-LIGATING BRACKET
    Publication number: 20170007370
    Abstract: The present invention discloses a passive self-ligating bracket, comprising a bracket body, wherein the middle part of the bracket body is sunken downwards to form an archwire slot; a locking piece in slide fit with the bracket body is arranged above the archwire slot; at least one locking position is provided on one of the bracket body and the locking piece; a fixing mechanism for fixing the locking piece at the locking position is arranged on one of the bracket body and the locking piece; the fixing mechanism comprises an elastic element located on one of the bracket body and the locking piece; the elastic element is provided with a bulge capable of being received at the locking position; when the locking piece is in a locked state, the bulge on the elastic element is received at the locking position; and when the locking piece is in an unlocked state, the end part of the bulge on the elastic element is in close abutment with one of the bracket body and the locking piece, and forces the elastic element to s
    Type: Application
    Filed: May 26, 2016
    Publication date: January 12, 2017
    Inventor: Qijun Ni