Patents by Inventor Shudong Dong

Shudong Dong 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).

  • Combined low power oil filled submersible motor and its protector
    Patent number: 7400074
    Abstract: The present utility model relates to submersible motor and its protector. A shared assembling base is provided to support and fix one end of the housing of the submersible motor and protector, the submersible motor has a main shaft to connect through the protector. The end of the assembling base connecting with the protector has a thrust bearing to support the motor shaft and form a thrust bearing chamber with the seal base of the protector, the shared assembling base has a cooling oil connecting passage, the isolation chamber where the bag is put in is formed between the seal base and assembly head base of the protector, a mechanical seal outside the assembly head base is provided for acting on the main shaft.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: July 15, 2008
    Assignee: Tianjin Rongheng Group
    Inventors: Chaorong Zhuang, Zongmin Li, Shudong Dong
  • Combined low power oil filled submersible motor and its protector
    Publication number: 20060177320
    Abstract: The present utility model relates to submersible motor and its protector. A shared assembling base is provided to support and fix one end of the housing of the submersible motor and protector, the submersible motor has a main shaft to connect through the protector. The end of the assembling base connecting with the protector has a thrust bearing to support the motor shaft and form a thrust bearing chamber with the seal base of the protector, the shared assembling base has a cooling oil connecting passage, the isolation chamber where the bag is put in is formed between the seal base and assembly head base of the protector, a mechanical seal outside the assembly head base is provided for acting on the main shaft.
    Type: Application
    Filed: August 1, 2005
    Publication date: August 10, 2006
    Inventors: Chaorong Zhuang, Zongmin Li, Shudong Dong
  • Combined high power oil filled submersible motor and its protector
    Publication number: 20060175918
    Abstract: The present utility model relates to submersible motor and its protector. A shared assembling base is provided to support and fix the end of housing of submersible motor and protector The end of the assembling base connecting with the protector has a thrust bearing to support the motor shaft and form a thrust bearing chamber with the seal base of the protector, the shared assembling base has a cooling oil connecting passage, a coupling for connecting motor main shaft with the transmission shaft of the protector is located in the thrust bearing chamber, the isolation chamber where the bag is put in is formed between the seal base and assembly head base of the protector, a mechanical seal outside the assembly head base is provided for acting on the main shaft.
    Type: Application
    Filed: August 1, 2005
    Publication date: August 10, 2006
    Inventors: Chaorong Zhuang, Zongmin Li, Shudong Dong