Patents by Inventor Walter Grassbaugh

Walter Grassbaugh 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).

  • Motor compressor lubrication
    Patent number: 7179069
    Abstract: A rotary machine is powered by a drive shaft having a bore extending through it. A single piece lubricant flinger is disposed within the bore to form a lubricant pump. The lubricant flinger includes an upper plate located within the bore and a washer located adjacent the opening of the bore. The washer is connected to the upper plate by a connection section and the washer defines an aperture which allows fluid to flow into the bore of the shaft.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: February 20, 2007
    Assignee: Copeland Corporation
    Inventor: Walter Grassbaugh
  • Scroll machine with single plate floating seal
    Publication number: 20060198748
    Abstract: A scroll machine utilizes a floating seal to isolate pressurized fluid to provide axial biasing. The floating seal is designed as a single piece plate with inner and outer annular seals. The inner and outer annular seals can be U-shaped, V-shaped or L-shaped and each configuration is oriented to provide pressure actuation of the seal. Additional embodiments add a discharge valve, a high temperature protection system or a high pressure protection system to the floating seal.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 7, 2006
    Inventors: Walter Grassbaugh, John Prenger, Christopher Stover, Xiaogeng Su, Hanqing Zhu
  • Motor compressor lubrication
    Publication number: 20060045784
    Abstract: A rotary machine is powered by a drive shaft having a bore extending through it. A single piece lubricant flinger is disposed within the bore to form a lubricant pump. The lubricant flinger includes an upper plate located within the bore and a washer located adjacent the opening of the bore. The washer is connected to the upper plate by a connection section and the washer defines an aperture which allows fluid to flow into the bore of the shaft.
    Type: Application
    Filed: August 25, 2004
    Publication date: March 2, 2006
    Inventor: Walter Grassbaugh