Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8152110 | Sensor system for monitoring the synchronism of control surfaces of an aircraft The present invention relates to a sensor system for monitoring the synchronism of control surfaces of an aircraft with two transmission links for the mechanical transmission of the movements of one or more control surfaces to at least one sensor, wherein the two tr... | 04/10/2012 |
| 7255305 | Flying device utilizing natural principles An efficient flying device having flapping wings, an ornithopter, which uses many of the principles seen in bird flight, is presented herein. The wings are highly flexible, translationally stable and oscillate as a natural pendulum. Described as a springboard, the w... | 08/14/2007 |
| 7229047 | Aircraft roll disconnect mechanism An aircraft flight control disconnect mechanism between the pilot and co-pilot controls, including a pair of concentrically positioned opposed circular jaws, each jaw having either mating tapered teeth or mating tapered openings, which when the jaws are axially sepa... | 06/12/2007 |
| 7207522 | Safety device trigger for activating a safety device An emergency floatation system for a helicopter includes a safety trigger device for inflating at least one raft during the course of an emergency. The safety trigger device includes a plurality of handles such that pulling any one of the plurality of handles trigge... | 04/24/2007 |
| 7195208 | Multi-device controller for model aircraft Control system for radio-controlled aircraft. The control system includes a control master for simultaneously controlling a group of flight control means, for example, a group of ailerons. A control bar is slidably mounted in the control master and connected to a se... | 03/27/2007 |
| 6960717 | Adjustable solar panel A nonrotating adjustable solar panel for optimizing cell charging of a portable message sign, comprising a movable frame, a message sign, a solar panel, a support post attached to the underside of the solar panel by a universal joint, and a mechanism for adjusting t... | 11/01/2005 |
| 6796535 | Flap operating system In a flap operating system, left and right actuators for operating left and right flaps are synchronized with each other by left and right pulleys and first and second synchronizing cables wound in an X-shape around the left and right pulleys. If one of the hydrauli... | 09/28/2004 |
| 6014940 | Surface effect craft A surface effect craft of simple construction achieving improved operational stability and performance at various speeds. The craft includes first and second main wing sections merge into the central hull to form a continuous aerodynamic wing structure. T... | 01/18/2000 |
| 5304036 | Autogyro aircraft An autogyro aircraft has freewheeling rotor blades that provide lift. A separate pusher propeller provides forward thrust. The rotor system (20) has a collective arm (30) as a control for selectively setting and maintaining a tension force on a collective... | 04/19/1994 |
| 5217189 | Suspension flight control method and apparatus A flight control apparatus for use in an aircraft includes support structure for suspending a pilot beneath a pair of wings while permitting movement of the pilot relative to the aircraft in the forward, rearward and both lateral directions. A control sys... | 06/08/1993 |
| 4671166 | Electro-hydraulic actuator systems An electrohydraulic actuator system has a first pair of actuators and a control circuit and a control valve for each actuator. The control circuits generate actuator position error signals and are also responsive to divergence of the operating position of... | 06/09/1987 |
| 4540141 | Fail-safe tail rotor control system Helicopter tail rotor control system having a quadrant (18) with two flexible cables (20,22) wrapped around the quadrant surface in opposing directions and each attached to the quadrant at a point (42,60) opposite to initial contact of the cable with the ... | 09/10/1985 |
| 4533096 | High lift system control assembly A control assembly (50) for deployment of aircraft wing flaps is comprised of an input cam mechanism (54), a feedback cam mechanism (56) and a summing lever member (58) operatively interconnecting the cam mechanisms for mechanically summing independent in... | 08/06/1985 |
| 4287788 | Self-rigging cable control system and process There is disclosed a cable control system which utilizes servo-regulation to maintain the desired cable tension. The system regulates cable tension, is self-rigging and is capable of sensing control cable failure to prevent runaway regulation.... | 09/08/1981 |
| 4192476 | Rudder pedal adjustment system A mechanism for positioning an aircraft rudder and brake pedal to accommodate the pilot. The present invention provides a means whereby aircraft rudder and brake cables adjustments are not disturbed when the assembly is repositioned anywhere within the ad... | 03/11/1980 |
| 4186622 | Redundant flight control system A flight control system utilizing pilot actuated flexible cables to selectively move a control quadrant and utilizing preloaded bungees additionally connecting each cable to the quadrant so that the quadrant can be pilot actuated despite the severance of ... | 02/05/1980 |
| 4175721 | Trim tab control mechanism Apparatus for controlling the movement and positioning of an aircraft trim tab comprising: an elongated stabilizer member mounted in the cockpit of the aircraft for reciprocal forward and aft movement and having a threaded portion thereon; a cable member ... | 11/27/1979 |
| 4170147 | Redundant flight control system A flight control system utilizing pilot actuated flexible cables to selectively move a control quadrant and utilizing balanced, preloaded springs connected to the quadrant to be selectively automatically releasable in response to cable severance so that t... | 10/09/1979 |
| 4154415 | Modulating vernier flap control system A slat and modulatable flap control system for an aircraft having slats in the leading edge of the wing and having flaps in the trailing edge of the wing. A detent pin on a control handle, and any one of four detent slots on a detent crank, can be engaged... | 05/15/1979 |
| 4142699 | Lateral control system Apparatus including a spoiler quadrant coupled to the aileron cable control system of the aircraft, rotation of which spoiler quadrant in either direction causes a bell crank to rotate about its pivot point in one direction only from its inactive position... | 03/06/1979 |
| 4040581 | Reverse thrust limiting system A system for reliably limiting the maximum positions to which the power control lever of an aircraft engine may be set in the thrust reversal mode corresponding to whether the aircraft is in the air or on the ground. A plurality of cable drums, one for ea... | 08/09/1977 |
