Inventor
DARROW JR DAVID A
US16 patents
Patents
16 patentsUS7621480B2Nov 24, 2009
De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing
SIKORSKY AIRCRAFT CORP42 citations91
US7607607B2Oct 27, 2009
De-rotation system suitable for use with a shaft fairing system
SIKORSKY AIRCRAFT CORP20 citations91
US9718541B2Aug 1, 2017
Swashplate apparatus
SIKORSKY AIRCRAFT CORP6 citations72
US9452830B2Sep 27, 2016
Constant velocity drive for tilt rotor assembly
SIKORSKY AIRCRAFT CORP3 citations72
US10648340B2May 12, 2020
High modulus hybrid material rotor blade spar
SIKORSKY AIRCRAFT CORP5 citations71
US10301012B2May 28, 2019
Rotor hub for rotary wing aircraft
SIKORSKY AIRCRAFT CORP2 citations69
US10112708B2Oct 30, 2018
Weight efficient servo attachment scheme for rigid coaxial rotor control system
SIKORSKY AIRCRAFT CORP4 citations69
US10336444B2Jul 2, 2019
Composite stiffened rigid propeller shaped main rotor hub
SIKORSKY AIRCRAFT CORP1 citations61
US10604247B2Mar 31, 2020
Tension torsion strap
SIKORSKY AIRCRAFT CORP1 citations55
US10543914B2Jan 28, 2020
Non-loaded manual blade fold assembly
SIKORSKY AIRCRAFT CORP0 citations51
US10189564B2Jan 29, 2019
Non-loaded manual blade fold assembly
SIKORSKY AIRCRAFT CORP0 citations51
US10173767B2Jan 8, 2019
Aircraft with drive element coupled to gearbox housing exterior
SIKORSKY AIRCRAFT CORP0 citations51
US11498670B2Nov 15, 2022
Coaxial split torque gear box
SIKORSKY AIRCRAFT CORP0 citations50
US10703466B2Jul 7, 2020
Propulsor hub weight element and balancing method
SIKORSKY AIRCRAFT CORP0 citations48
US9957040B2May 1, 2018
Propeller gearbox oil cooler for a rotary wing aircract
SIKORSKY AIRCRAFT CORP0 citations42
US10358212B2Jul 23, 2019
Aircraft rotor assembly with composite laminate
SIKORSKY AIRCRAFT CORP0 citations41