Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7296969 | Propeller pitch change system | Mark Raes | 2007-11-20 |
| 7172391 | Propeller actuation system | — | 2007-02-06 |
| 6981844 | Cyclic actuation system for a controllable pitch propeller and a method of providing aircraft control therewith | Robert H. Perkinson, David V. Arel | 2006-01-03 |
| 6514044 | Offset crowned roller assembly for variable pitch propellers | Eric Talasco | 2003-02-04 |
| 6280142 | Pressure relief device for a propeller hub | Robert W. Pruden | 2001-08-28 |
| 6077040 | Control system for blades for a variable pitch propeller | Robert W. Pruden | 2000-06-20 |
| 6059528 | Electronic propeller control system | David R. Danielson, Charles L. DeGeorge | 2000-05-09 |
| 5836743 | Variable pitch counterweighted propeller system with releasable hydraulic pitchlock | Robert W. Pruden | 1998-11-17 |
| 5451141 | Propeller pitch change machanism with inductive brake and motor | John E. Games, Richard L. Bonnanzio | 1995-09-19 |
| 5431539 | Propeller pitch change mechanism | — | 1995-07-11 |
| 5391055 | Propeller pitch change mechanism with impulse turbines | — | 1995-02-21 |
| 5199850 | Pitch stop assembly for variable pitch propulsor | Edward H. Kusiak | 1993-04-06 |
| 5161948 | Propulsor pitchlock and feather stop | Edward H. Kusiak | 1992-11-10 |
| 5042966 | Pitch control system | Robert A.D. Schwartz, Robert J. Lampeter | 1991-08-27 |
| 4936746 | Counter-rotation pitch change system | Millard G. Mayo, Edward H. Kusiak, Philip E. Barnes | 1990-06-26 |
| 4893989 | Variable propeller system incorporating a forward transfer bearing | — | 1990-01-16 |
| 4693672 | Two level oil dam | — | 1987-09-15 |