Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7836676 | Fuel metering valve back-up position control system | Gregory A. Lafferty | 2010-11-23 |
| 7607285 | Four mode thermal recirculation throttle valve | David J. Hauck, Gregory Kline, Steven Alan Lewis, George S. Wieger | 2009-10-27 |
| 7587900 | Gas turbine engine fuel control system having a transfer valve and a shutoff valve and a common controller therefor | Jeffrey Dugan Shelby, Matthew Arend, Per William Danzl | 2009-09-15 |
| 7565793 | Gas turbine engine fuel control system having start / back up check valve (SBUC) providing a main fuel check valve function | Jeffrey Dugan Shelby, George S. Wieger | 2009-07-28 |
| 7484522 | Method to control starter/generator cooling fuel flow during engine starting | Chris D. Eick, Mitchell Laidlaw, Anthony C. Libera, Donald Purcell | 2009-02-03 |
| 7455074 | Latchable electrohydraulic servovalve | Jeffrey Dugan Shelby, Matthew Arend | 2008-11-25 |
| 7386981 | Method and apparatus generating multiple pressure signals in a fuel system | Edward Zielinski | 2008-06-17 |
| 7296406 | System for positioning a piston including a fail fixed valve for holding the piston in position during a power interruption and method of using same | George S. Wieger, Steven Alan Lewis, Gregory A. Lafferty, John C. Van Oosterum | 2007-11-20 |
| 7252068 | System and method to reduce fuel system pumping heat input | Chris D. Eick | 2007-08-07 |
| 7093420 | Flow divider and ecology valve | Dennis G. Demers | 2006-08-22 |
| 6892544 | Flow divider & purge air system for a gas turbine engine | David W. Rice, Thomas A. Nieter | 2005-05-17 |
| 6751939 | Flow divider and ecology valve | Dennis G. Demers | 2004-06-22 |
| 6484510 | Fuel divider and ecology system for a gas turbine engine | Steven F. Fisher, Kevin R. Sharp | 2002-11-26 |
| 6422021 | Fuel divider and ecology system for a gas turbine engine | Steven F. Fisher, Kevin R. Sharp | 2002-07-23 |
| 6385962 | Fuel divider and ecology system for a gas turbine engine | Steven F. Fisher, Kevin R. Sharp | 2002-05-14 |
| 6334296 | Fuel divider and ecology system for a gas turbine engine | Steven F. Fisher, Kevin R. Sharp | 2002-01-01 |
| 6328056 | Proportional bypass valve with dual variable orifice | Abhay Kumar, Steven F. Fisher | 2001-12-11 |
| 6314998 | Fuel divider and ecology system for a gas turbine engine | Steven F. Fisher, Kevin R. Sharp | 2001-11-13 |
| 6195978 | Ecology system for a gas turbine engine | — | 2001-03-06 |
| 6135135 | Force balanced proportional bypass valve | Russell C. Perkey | 2000-10-24 |
| 6092546 | Fuel flow divider and pressurizing valve for gas turbine | Ivan P. Lebrun | 2000-07-25 |
| 5579632 | Overspeed governor control system | Martin Dutka, Rick L. Poelstra, Timothy F. Wiegand | 1996-12-03 |
| 5518025 | Two signal head sensor | Keith J. Kovac | 1996-05-21 |
| 5332233 | Face seal means | George S. Wieger | 1994-07-26 |
| 5132009 | Filter for a fuel system | Francis A. Hamerly | 1992-07-21 |