Patents by Inventor Zhuang Tain

Zhuang Tain 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).

  • Linear motor controller
    Patent number: 7285878
    Abstract: A sensorless method of detecting piston collisions in a reciprocating free piston linear compressor driven by an electronically commutated linear motor having at least one excitation winding is provided. A free piston gas compressor is also provided.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: October 23, 2007
    Assignee: Fisher & Paykel Appliances Limited
    Inventors: Ian McGill, Zhuang Tain
  • Linear motor controller
    Publication number: 20050168179
    Abstract: A sensorless method of detecting piston collisions in a reciprocating free piston linear compressor driven by an electronically commutated linear motor having at least one excitation winding is provided. A free piston gas compressor is also provided.
    Type: Application
    Filed: March 31, 2005
    Publication date: August 4, 2005
    Inventors: Ian McGill, Zhuang Tain