Patents by Inventor Juhai Hu

Juhai Hu 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).

  • Pulse activated magnetic trip/reset mechanism for a ground fault circuit interrupter
    Patent number: 8248192
    Abstract: A pulse activated magnetic trip/reset mechanism for a ground fault circuit interrupter, comprising: (i) a body, (ii) a ferrite core, (iii) a plunger, (iv) a ferrite surrounding, (v) a permanent magnet, (vi) a trip/reset coil, (vii) a reset spring positioned between a plunger block and the body, (viii) a first fixed contact holder having a first fixed contact point, and (ix) a first movable contact holder having a first movable contact point, wherein the first movable contact holder is attached to the body of the plunger such that when the plunger is in its first position (trip position), the first movable contact point is not in contact with the first fixed contact point, and when the plunger is in its second position (reset position), the first movable contact point is in contact with the first fixed contact point.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: August 21, 2012
    Assignee: General Protecht Group, Inc.
    Inventors: Juhai Hu, Yulin Zhang, Bin Liu, Jianning Jiang
  • PULSE ACTIVATED MAGNETIC TRIP/RESET MECHANISM FOR A GROUND FAULT CIRCUIT INTERRUPTER
    Publication number: 20110169593
    Abstract: A pulse activated magnetic trip/reset mechanism for a ground fault circuit interrupter, comprising: (i) a body, (ii) a ferrite core, (iii) a plunger, (iv) a ferrite surrounding, (v) a permanent magnet, (vi) a trip/reset coil, (vii) a reset spring positioned between a plunger block and the body, (viii) a first fixed contact holder having a first fixed contact point, and (ix) a first movable contact holder having a first movable contact point, wherein the first movable contact holder is attached to the body of the plunger such that when the plunger is in its first position (trip position), the first movable contact point is not in contact with the first fixed contact point, and when the plunger is in its second position (reset position), the first movable contact point is in contact with the first fixed contact point.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Applicant: General Protecht Group, Inc.
    Inventors: Juhai Hu, Yulin Zhang, Bin Liu, Jianning Jiang