Patents by Inventor Tomas R. Leutwiler

Tomas R. Leutwiler 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).

  • Wash filter with wash velocity control cone
    Patent number: 8313656
    Abstract: A variable wash flow filter assembly includes guide that is operable to guide a wash velocity control cone between a minimal position and a maximum position. The guide defines at least one activation deltaP window downstream of a conical gap between the wash velocity control cone and a frusto-conical wash filter. The fuel flow through the conical gap and the activation deltaP window is operable to position the wash velocity control cone between the minimal position and maximum position to selectively split a fuel flow through an inlet into a burn flow through a thru flow port and a filtered flow thru the frusto-conical wash filter and filtered flow port.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 20, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Kevin Gibbons, Francis P. Marocchini, Tomas R. Leutwiler
  • RETENTION SYSTEM
    Publication number: 20120027509
    Abstract: A system to retain a sleeve within a housing includes a sleeve, a spring loaded retaining pin which can be moved to be fully within the sleeve, a locking pin to hold the retaining pin within the sleeve when the sleeve is being set into or withdrawn from the housing, and an annular recess in the housing to receive the retaining pin when the sleeve is set in the housing, the locking pin is removed and the retaining pin is pushed outward by the spring. The sleeve is retained within the housing when the spring pushes the retaining pin outward so that the retaining pin engages the annular recess in the housing.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Tomas R. Leutwiler, Francis P. Marocchini
  • WASH FILTER WITH WASH VELOCITY CONTROL CONE
    Publication number: 20120000844
    Abstract: A variable wash flow filter assembly includes a wash velocity control cone movable between a minimal position and a maximum position.
    Type: Application
    Filed: September 9, 2011
    Publication date: January 5, 2012
    Inventors: Kevin Gibbons, Francis P. Marocchini, Tomas R. Leutwiler
  • Wash filter with wash velocity control cone
    Patent number: 8029664
    Abstract: A variable wash flow filter assembly includes a wash velocity control cone movable between a minimal position and a maximum position.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 4, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Kevin Gibbons, Francis P. Marocchini, Tomas R. Leutwiler
  • ADJUSTABLE PLUGS FOR FLUID FLOW-SPLIT ACCURACY
    Publication number: 20110139266
    Abstract: A flow splitter for accurately dividing fluid flow into different outlets includes a splitter valve and a calibration member. The calibration member blocks a portion of fluid flow to reduce differences in the divided fluid flows.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 16, 2011
    Inventors: Tomas R. Leutwiler, Glenn Gradischer, Anthony Towne, Richard H. Bostiga
  • WASH FILTER WITH WASH VELOCITY CONTROL CONE
    Publication number: 20090321334
    Abstract: A variable wash flow filter assembly includes a wash velocity control cone movable between a minimal position and a maximum position.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Inventors: Kevin Gibbons, Francis P. Marocchini, Tomas R. Leutwiler