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WO/2001/007318A1 |
An improved method of launching and retrieving a UAV (Unmanned Aerial Vehicle) (10) is disclosed. The preferred method of launch involves carrying the UAV (10) up to altitude using a parasail (8) similar to that used to carry tourists al...
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WO/2001/005655A1 |
A method is provided for arranging the components and power connection points within a braking system architecture in order to better maintain isolation of the power busses, and thereby improve overall integrity of the system, while stil...
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WO/2001/004003A1 |
An aircraft, aircraft landing gear and apparatus including at least one attachment (15, 17, 76, 93, 94, 111) for noise reduction purposes are provided. Such attachments are shaped and positioned on the landing gear to deflect air away fr...
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WO/2000/069721A1 |
The braking control system provides dual redundant control of hydraulically operated wheel braking for an aircraft. A primary hydraulic system (38) provides hydraulic power for normal operation of the plurality of wheel brakes, and a sec...
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WO/2000/066430A1 |
A combine hydraulic damper and truck positioner mechanism (20) for a landing gear (22) of an airplane. The landing gear being swingingly attached to the airplane for reciprocating movement of the landing gear between an extended position...
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WO/2000/064719A1 |
The present invention pertains to the field of air-cushion vehicles and can essentially be used in ship and transport platforms for displacing loads as well as in seaplanes, etc. The method for generating an air discharge and a thrust fo...
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WO/2000/059781A1 |
An aircraft landing gear comprises four mounting members (14, 15, 18, 19) attached to an airframe of the aircraft via attachments (14a, 15a, 16a). One of the attachments (16a) is in the form of a leaf spring (30) which can flex upwards a...
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WO/2000/058642A1 |
Elastomer dampers and for damping movement between two relatively moveable members, such as shimmy motion between components in an aircraft landing gear assembly. Each damper includes a housing having an internal cavity with a cylindrica...
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WO/2000/048903A1 |
An aircraft undercarriage mechanism (20) comprising a first lock member (22) mounted on the undercarriage (14), the first lock member being engageable with a second lock member (24) mounted on a wing (10) of the aircraft. The first lock ...
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WO/2000/011357A1 |
An adjustable size annular retaining assembly includes at least two substantially rigid segments (1, 2) and means (3, 4) for pivotably interconnecting the segments in end to end relationship, so that when the segments are pivotally inter...
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WO/1999/051712A2 |
A novel energy hydraulic media is disclosed comprising a microgel dispersion. The microgel dispersion is a Non-Newtonian fluid. This microgel dispersion is useful in devices that utilize a hydraulic fluid, such as hydraulic energy transm...
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WO/1999/047416A1 |
The invention is in the field of hydraulic actuating devices for positioning aircraft landing gear components, and more particularly relates to a dual mode positioner (100) for an aircraft landing gear axle beam (12). The dual mode posit...
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WO/1999/042363A1 |
An aircraft undercarriage having a drag stay mechanism (22) extending upwardly and rearwardly from a main leg portion (10) of the gear to a part of the aircraft structure. The undercarriage also includes a locking linkage extending betwe...
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WO/1998/050711A1 |
An electrically actuated aircraft brake system (20) and method which provides for brake wear measurement, brake running clearance adjustment, ram position-based control and improved construction and operation. Brake wear and running clea...
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WO/1998/030449A1 |
An orbital launch vehicle (1) equipped with aerodynamic lifting surfaces (2) is towed as a glider behind a conventional aircraft (19). The launch vehicle (1) is used to place spacecraft (16) into low earth orbit. The lift from the aerody...
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WO/1998/029304A1 |
The invention concerns a slewable landing gear element (14) of an aircraft, such as a slewable element of the rear landing gear of a jumbo-jet equipped with a slewable front landing gear and of a non slewable underwing landing gear, comp...
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WO/1998/025820A2 |
An aircraft (1) of the type having retractable landing gear (10) and a pusher propeller (8) is provided with a twin tail boom (4). The tail boom (4) has a configuration to prevent the lowermost point of the pusher propeller (8) from cont...
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WO/1998/025819A1 |
A shock absorber (1) optionally operable as a retractable landing gear actuator, includes a sealed cylinder (1) divided by a cylinder head (7) to define an upper chamber (45) and a lower chamber (46, 47), the lower chamber (46, 47) furth...
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WO/1998/024688A1 |
An arrangement for an aircraft main landing gear is provided which includes a main oleo strut (7) having forward and aft trunnion bearings (8, 10), an aircraft wing rear spar (2) having a mounting (9) for the forward trunnion bearing (8)...
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WO/1998/015755A1 |
The invention relates to the field of aircraft suspension systems. More particularly, the invention relates to a damped spring for an aircraft suspension comprising a dry spring and damping medium. The damped spring according to the inve...
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WO/1997/047520A1 |
The invention discloses a device for bringing an aircrafts wheels to ground speed before landing, then for cooling the brake disks after landing. It consists of brass pipes (7) attached on the sliding tube (3) and terminated by wind nozz...
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WO/1997/035762A1 |
A helicopter skid having a wall (20) defining an elongated generally cylindrical tubular cross section, and a web (22) extending vertically along the longitudinal axis of the skid between a bottom portion (26) and a top portion (24) of t...
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WO/1997/028043A1 |
A machine for bringing the rotational speed of the aircraft tires up to the landing ground speed of the aircraft, thereby eliminating the shock and sudden acceleration of the normally stationary tires upon contact with the runway, that c...
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WO/1997/018127A1 |
Apparatus for causing an aircraft wheel to rotate in an airflow, comprising a plurality of wind catching-members (54, 128) disposed about a central axis (20, 110). Driving means are provided for drivably moving the wind-catching members ...
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WO/1997/010145A1 |
A landing gear/tail skid having at least two pivot axes (22, 24) which are subject to relative motion in response to impact loads acting on the landing gear/tail skid (10) and a contact arm (18) disposed in combination with pivot axes (2...
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WO/1996/037371A1 |
A vehicle wheel (12) of lightweight alloy is provided with a replaceable beadseat protector (20) which protects the beadseat area (14) of the rim of the wheel from tire abrasion and chafing and subsequent corrosion. When formed of organi...
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WO/1996/017771A1 |
Landing gear axle steering for an aircraft having a six wheel three axle truck. A set of wheels driven about a vertical shaft (2) utilizes a single actuator (3) alone without a walking beam.
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WO/1996/017770A1 |
Very large aircraft landing gear (10) using single mounted eight wheel bogie on dual shock struts (1, 2). A primary or main two-stage shock absorber (1) and a semi-articulating secondary or auxiliary single-stage shock absorber (2), each...
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WO/1996/015940A1 |
A shock strut assembly (10) for an aircraft landing gear includes a trunnion fitting (12), a compressible oleo strut subassembly (14), a wheel subassembly (16), an energy dissipating subassembly (50), and a mechanical fuze subassembly (6...
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WO/1996/015941A1 |
Orbital launch vehicles (1) with aerodynamic lifting surfaces (2) enabling them to be towed as gliders behind conventional aircraft (19), and the method of towing these launch vehicles using a flexible cable (18) to connect them with a c...
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WO/1996/008396A1 |
The invention relates to sequential selective operation of aircraft brakes in a manner in which the braking level requirement is continually monitored and the number of brakes in operation is adjusted continuously or at frequent interval...
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WO/1996/008409A2 |
A flotation apparatus, specifically a ski (27), is provided for use on an aircraft (21) for improving the egress and ingress from the aircraft cabin (20). The ski (27) is particularly applicable to helicopters (21) having fixed wheeled l...
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WO/1996/006005A1 |
The invention discloses a model helicopter (10) which includes an improved fuselage (19) having a central keel structure (20), supporting radio control system components (12), mechanical drive train components including a source of motiv...
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WO/1996/006006A1 |
This invention relates to the field of yaw control systems for helicopters (10), including a gyroscopic mechanism (12) mounted on a helicopter tail rotor assembly (2) and configured to vary tail rotor (2) thrust automatically to produce ...
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WO/1995/029842A2 |
A high-lift main rotor system (1) is provided for a full-size or model helicopter (15). Main rotor system (1) includes rotor blades (100) and subrotor blades (84) for producing aerodynamic lift. The subrotor blades (84) act to augment co...
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WO/1995/029094A1 |
The present invention relates to a system for driving the landing gear of an aircraft. An aircraft having wheel driving means associated with at least one of the wheels of the landing gear is described. Preferably, the nose gear is drive...
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WO/1995/012522A1 |
An improved helicopter landing gear assembly (12) to substantially increase useful service life. The crosstubes (14) are constructed of a material that allows use of thicker crosstubes thereby reducing the operating stress in the crosstu...
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WO/1995/009737A1 |
A wheel rim assembly (10) includes a first bead flange and a separable second bead flange (16), the separable second bead flange (16) maintained on a wheel rim (12) of the wheel rim assembly (10) by a retaining ring assembly (20). The re...
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WO/1995/009759A1 |
A cushioning member (19) for articulated members (13, 13', 15 and 15') which resists hinging of the articulated members (13, 13', 15 and 15') together. In one form the cushioning member (19) is applied to trainer wheels (11 and 11') for ...
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WO/1995/005974A2 |
Several innovative systems for an aircraft, and aircraft incorporating them, are disclosed. Features include inboard-mounted engine(s) (24, 25) with a belt drive system (84, 99) for turning wing-situated propellers (8, 9); compound landi...
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WO/1994/020344A1 |
In an aircraft braking system comprising a plurality of carbon brakes control means is provided whereby the number and/or proportion of brakes that may be disabled at each stage of a flight spectrum (i.e. taxiing-out, take-off, in-flight...
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WO/1994/015831A1 |
To provide a device (100) for controlling the revolution speed of an aircraft undercarriage wheel (10) driven or drivable by a drive system (11) which is of simple construction, operates reliably and provides a permanently and constantly...
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WO/1994/013531A1 |
The invention relates to an aircraft construction in which a retractable/extendable undercarriage assembly (8) of the aircraft fuselage (6) includes vanes (22, 24) which in normal flight lie flush with the fuselage contours in the manner...
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WO/1994/010014A1 |
In a wheeled vehicle (11) there is provided a means to supply pressurized brake fluid to actuate the wheel brakes of the vehicle, and includes an anti-skid brake control system (9). The control system comprises: an operator actuated cont...
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WO/1994/008806A1 |
A vehicle suspension arrangement comprising an axle (14) which rotatably supports a wheel (23); a leaf-spring (17) which is supported at opposite ends (17c, 17d) and is connected to the axle (14) at an intermediate point (20) to flex lat...
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WO/1994/007743A1 |
An aircraft landing locking pin (12) automatically repositions from an engage position, wherein a rotating portion (15) of the landing gear is prevented from rotating, to a released position, wherein the rotating portion if free to rotat...
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WO/1994/001675A1 |
A device for driving a rotor shaft (1) through the action of a moving fluid (F) comprises at least: a rotary shaft (3) integral with and perpendicular to the shaft (1), fitted at each end with a flap (2a, 2b), each flap being mounted in ...
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WO/1993/008415A1 |
A pressure relief valve includes a fluid flow channel (6, 19, 21) through which an initial flow of fluid passes in use, and a valve opening member (23) responsive at a predetermined fluid pressure to open the valve (13) and allow an incr...
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WO/1993/006383A1 |
The wheel and rotor drive key assembly (10) comprises a wheel (12) having a plurality of integral torque-transmitting drive lugs (22) which extend radially inwardly from an inner surface (20) of the wheel (12) and axially across the inne...
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WO/1993/000525A2 |
An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder (68) for releasing the safety brake as well as a service brake enhancing bladder (70) and a pair of rotor brake discs (22, 24). The brake discs (22, ...
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