Patents by Inventor William George Ferguson

William George Ferguson 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 compressor
    Patent number: 7247007
    Abstract: A linear compressor includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but axially stiff linkage and piston. The cylinder part includes a cylinder and a cylinder liner therewithin. A bore runs through the cylinder liner and the piston reciprocates in the bore. Gas bearing passages are formed between the cylinder and the cylinder liner leading to opening through the wall of the cylinder liner to the bore. A gas bearing manifold receives compressed gases and supplies the compressed gases to the gas bearing passages. The gas bearing passages follow a tortuous path to the openings.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: July 24, 2007
    Assignee: Fisher & Paykel Appliances Limited
    Inventors: Lindsey Jack Roke, Ian Campbell McGill, Gerald David Duncan, William George Ferguson, Andrew Paul Taylor
  • Linear compressor with aerostatic gas bearing passage between cylinder and cylinder liner
    Patent number: 6966761
    Abstract: A linear abstract includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but axially stiff linkage and a piston. The cylinder part includes a cylinder and a cylinder liner therewithin. A bore runs through the cylinder liner and the piston reciprocates in the bore. Gas bearing passages are formed between the cylinder and the cylinder liner leading to openings through the wall of the cylinder liner to the bore. A gas bearing manifold receives compressed gases and supplies the compressed gases to the gas bearing passages. The gas bearing passages follow a tortuous path to the openings.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: November 22, 2005
    Assignee: Fisher & Paykel Appliances Limited
    Inventors: Lindsey Jack Roke, Ian Campbell McGill, Gerald David Duncan, William George Ferguson, Andrew Paul Taylor