649 patents
Page 21 of 33
Utility
Hardware installation aid
24 Aug 20
An adapter for aiding in the installation of a fastener assembly includes a body defining a first aperture formed in a first end thereof and configured to receive at least a portion of the fastener assembly.
Ilya Gershkovich, Kirk J. Witherow
Filed: 14 Dec 16
Utility
Vibration absorbing device for flexbeams
24 Aug 20
A replacement vibration absorbing device for replacing a wear wrap on a flexbeam includes a sleeve having a plurality of layers of vibration absorbing material, wherein an edge of the sleeve is cut so that the sleeve may be installed around a generally central portion of a flexbeam.
Joshua Mancher, Lewis L. Kristie, Marcus D. Cappelli
Filed: 18 Oct 18
Utility
Tip clearance harmonic estimation
24 Aug 20
A method of tip clearance estimation for a rotor blade is provided.
Derek Geiger, Jeremy Frimpong Banning
Filed: 20 Dec 15
Utility
Electric propulsion system for a rotary wing aircraft
24 Aug 20
An electric propulsion system includes a mast defining an axis of rotation.
Timothy Fred Lauder
Filed: 17 Oct 16
Utility
Adjustable scissor link
24 Aug 20
A scissor link includes a first component defining a first bore and including first outer pads defining first and second holes and a first recession defining a first threaded hole, a second component defining a second bore and including second outer pads defining third and fourth holes and a second recession defining a second threaded hole, a shim disposable between the first and second outer pads of the first and second components, a stud to engage with each of the first and second threaded holes to tighten the first and second components about the shim and flanking bolts insertible through respective pairs of the first through fourth holes of the first and second components.
Kevin Laitenberger, Stephen V. Poulin
Filed: 15 Oct 15
Utility
Systems and methods for aircraft balance
24 Aug 20
An adjustable cable attachment system for a VTOL aircraft includes a VTOL airframe.
Jeffrey Parkhurst, Mark R. Alber
Filed: 28 Nov 16
Utility
Adhesive panels of microvane arrays for reducing effects of wingtip vortices
24 Aug 20
A wing includes a low pressure side, a high pressure side opposite the low pressure side, and a drag reducing apparatus coupled to the low pressure using an adhesive.
Brian T. Rosenberger, Eric Frederick Charlton, Daniel N. Miller
Filed: 8 Aug 17
Utility
Removing blade cuff bushings
24 Aug 20
A tool for removing a bushing from a workpiece includes a tool body, a first reference, and a second reference for positioning the tool body on a workpiece.
Ryan Lehto, Sven Roy Lofstrom
Filed: 17 Oct 16
Utility
Rotor blade pitch horn assembly
24 Aug 20
A rotor assembly includes a rotor hub which rotates about a hub rotation axis and a blade connected to the rotor hub.
Lance Halcom, Frank P. D'Anna, Leonard J. Doolin
Filed: 17 Aug 15
Utility
Variable ratio gearbox for a rotary wing aircraft tail rotor
17 Aug 20
A rotary wing aircraft including a prime mover, a main rotor assembly having a first plurality of rotor blades operatively coupled to a main rotor shaft rotatable at a first speed ratio, a tail rotor assembly including a second plurality of rotor blades operatively coupled to a tail rotor shaft rotatable at a second speed ratio, and a variable ratio gearbox assembly mechanically connected to the tail rotor assembly.
Frederick L. Bourne, Timothy F. Lauder, Nicholas D. Lappos
Filed: 16 Aug 17
Utility
Redundant helicopter pitch change shaft system
17 Aug 20
An aircraft tail rotor system includes a rotating pitch change shaft, a translating element, and a pitch change bearing assembly including a first bearing and a second bearing.
Michael F. Mullen, William Wolcott, Kyle Winters
Filed: 11 Mar 18
Utility
Anti-vibration load generating aircraft actuation system
17 Aug 20
An aircraft is provided and includes a rotor, which is rotatable relative to an airframe, a rotor, which is rotatable relative to the airframe and which generates a rotor induced vibration, an engine to generate rotational energy, a drive portion to transfer the rotational energy from the engine, a gearbox disposed to transmit the rotational energy from the drive portion to the rotor to drive rotor rotation, support members connecting the gearbox to the airframe and an actuation system configured to generate an anti-vibration load applicable to the gearbox via an actuator comprising an actuator element disposed along one of the support members and a stinger element extending from the actuator element to a connection point of the support member and the gearbox to transmit a portion of the anti-vibration load from the actuator element to the connection point to counter the rotor induced vibration at the gearbox.
William A. Welsh, Bryan Kenneth Baskin, Chris Paul Butler
Filed: 4 Aug 15
Utility
Cable guide mechanism for a rescue hoist
17 Aug 20
A hoisting system for hoisting a load relative to a body includes a hoisting cable, a hoisting mechanism selectively operable to deploy and retract the hoisting cable, and a guide mechanism movably mounted to the body at a position between the body and the hoisting cable.
Barton J. Hainsworth, Peter J. Barner, Rohan M. McGregor
Filed: 26 Feb 18
Utility
Radially compliant quill shaft
17 Aug 20
A quill shaft which translates rotational energy between a gear and a drive shaft having a drive shaft spline includes a first leg having an inner spline which meshes with the drive shaft spline and a second leg concentric with the first leg and radially offset and separated from the first leg by a gap.
Todd A. Garcia, Bryan Kenneth Baskin, Huali Ding, Biqiang Xu
Filed: 21 Apr 15
Utility
Electro-chemical hardening of bearing raceways
17 Aug 20
A method of making bearings includes treating a metallic surface of a bearing raceway with a pulsed electrochemical processing nozzle to transform the amorphous oxide into a crystalline structure on the metallic surface electro-chemically and convert the metallic surface into a ceramic like hardness surface.
Bruce D. Hansen, William P. Fallon, Jr.
Filed: 9 Oct 19
Utility
Vibration damping device for an elongated member
17 Aug 20
A vibration damping device is configured to reduce vibration that causes lateral flexing of an elongated member that extends along a centerline.
Yuriy Gmirya
Filed: 13 Jun 16
Utility
Gearbox lubrication system for aircraft
17 Aug 20
A gearbox for a rotary wing aircraft including a sump, a primary lubricant reservoir fluidically connected to the sump, one or more primary lubricant jets fluidically connected to the primary lubricant reservoir, an auxiliary lubricant reservoir fluidically connected to the sump, one or more auxiliary lubricant jets fluidically connected to the auxiliary lubricant reservoir, and at least one valve selectively fluidically connecting the sump and the primary lubricant reservoir based on a first lubricant pressure and the sump and the auxiliary lubricant reservoir based on a second lubricant pressure at the at least one valve.
Yuriy Gmirya, Thomas L. Sbabo, John H. Meeson, Jr., Rodger W. Bowman
Filed: 18 Feb 16
Utility
Projectorless simulator with adjustable size canopy
17 Aug 20
A projectorless simulator that includes an adjustable frame is disclosed.
Joshua D. Kitain, O'Shae M. Bridges, Nolan Lucht, David J. Macannuco, Adam R. Breed
Filed: 2 Oct 18
Utility
Systems and methods for remotely triggered data acquisition
17 Aug 20
A method of data acquisition for health management of systems is provided.
Isaac Bandy, Seth W. Mason
Filed: 14 Jan 16
Utility
GPS III antenna payload configuration for enhanced PNT accuracy and reduced high power risk
17 Aug 20
An antenna array for a global positioning system (GPS) includes a first antenna element and a number of second antenna elements.
Erik Lier, Charles Howard Frey, Mark Conrad Crews
Filed: 18 Oct 18