Patents by Inventor Robert M. Pragluski

Robert M. Pragluski 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).

  • Air cycle machine with seal shaft
    Patent number: 9470104
    Abstract: A seal shaft for use in an air cycle machine has two axial edges. An axial distance is measured between contact faces at the axial edges, with a tolerance to the dimension. A greatest variation between the axial distance at a plurality of spaced locations on the edge face is maintained with a ratio of the greatest variation to the tolerance being less than 0.2. A rotor assembly, an air cycle machine and a method are also disclosed.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 18, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark Vignali, Robert M. Pragluski
  • AIR CYCLE MACHINE WITH SEAL SHAFT
    Publication number: 20140210167
    Abstract: A seal shaft for use in an air cycle machine has two axial edges. An axial distance is measured between contact faces at the axial edges, with a tolerance to the dimension. A greatest variation between the axial distance at a plurality of spaced locations on the edge face is maintained with a ratio of the greatest variation to the tolerance being less than 0.2. A rotor assembly, an air cycle machine and a method are also disclosed.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark Vignali, Robert M. Pragluski
  • Air cycle machine air bearing shaft
    Patent number: 8475114
    Abstract: An air cycle machine includes a shaft formed from end sections attached to a center section. The center section includes a first diameter that is supported on bearings within the air cycle machine and a second diameter that forms a part of an interface with a corresponding end section. The second diameter is less than the first diameter and extends an axial distance from an end of the center section and provides for the weld beam to be directed normal to the interface location such that weld quality and manufacturing efficiencies are improved.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: July 2, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Seth E. Rosen, Craig M. Beers, Robert M. Pragluski, Michael P. Rowley
  • AIR CYCLE MACHINE AIR BEARING SHAFT
    Publication number: 20110192165
    Abstract: An air cycle machine includes a shaft formed from end sections attached to a center section. The center section includes a first diameter that is supported on bearings within the air cycle machine and a second diameter that forms a part of an interface with a corresponding end section. The second diameter is less than the first diameter and extends an axial distance from an end of the center section and provides for the weld beam to be directed normal to the interface location such that weld quality and manufacturing efficiencies are improved.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 11, 2011
    Inventors: Seth E. Rosen, Craig M. Beers, Robert M. Pragluski, Michael P. Rowley