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| Number | Title | Issue Date |
| 7426983 | Landing gear strut damper, and landing gear with independent struts comprising same A damper for an airplane landing gear leg comprises a main strut (11) and a rod piston (13) co-operating with the strut (11) to define a main chamber (15) and annular chamber (16) for hydraulic fluid, and presenting internally two ... | 09/23/2008 |
| 7204456 | Landing gear having a gas vessel, and methods of maintaining such landing gear A landing gear includes a shock absorber having first and second elements slidable relative to each other, the slidable elements defining an inside volume which is filled in part with hydraulic fluid so as to leave a first chamber filled with gas under pressure and ... | 04/17/2007 |
| 7175134 | Hydraulic damper for shimmy of aircraft landing gear A hydraulic system for steering an aircraft while taxiing selectively applies pressurized fluid to different ports of a hydraulic motor to turn a landing gear wheel either left or right. Shimmy of the landing gear attached to the wheel is dampened by a device that i... | 02/13/2007 |
| 7111397 | Method of forming an inside wall of a bearing for supporting a cylindrical element The invention relates to a method of forming the inside wall of a support bearing of given height H and suitable for receiving a cylindrical portion of a cylindrical element for co-operating with the inside wall, said method comprising the steps of estimating a defl... | 09/26/2006 |
| 6948683 | Aircraft landing gear An aircraft landing gear includes a leg having a strut receiving a telescopic rod to slide on a sliding axis, the strut being hinged to an aircraft structure and being capable of pivoting about a pivot axis that is highly offset from the sliding axis. The landing ge... | 09/27/2005 |
| 6907799 | Apparatus and method for non-destructive inspection of large structures An automated inspection system and method enables rapid, remote and non-contact inspection of large objects, utilizing non-destructive inspection techniques, that does not require continuous manual repositioning of the inspection equipment. The inspection system inc... | 06/21/2005 |
| 6886780 | Model landing gear assembly A wheel assembly, in particular, a landing gear assembly for an aircraft model that includes a mounting block and a pair of landing gear struts that are capable of being attached to the mounting block without the use of any tools. The mounting block includes individ... | 05/03/2005 |
| 6802476 | Latch device, in particular for latching an airplane landing gear or an airplane landing gear hatch, and a method of operating said device The invention relates to a latch device, in particular for latching an airplane landing gear or an airplane landing gear hatch, the device comprising a box containing a set of hinged elements mounted to pivot about respective parallel axes, said assembly including a... | 10/12/2004 |
| 6715714 | Landing gear for model airplane A landing gear for a model airplane featuring a support structure that is spring loaded to permit controlled resilient tilting of the support structure thereby absorbing the shear impulses to which a plane is is otherwise subject to. A pair of springs is mounted on ... | 04/06/2004 |
| 6651931 | Multi-positional landing gear assemblies Aircraft landing gear assemblies having multiple deployed static positions. In one embodiment, a landing gear assembly usable with a wing includes a wheel truck and a strut having a first strut end and a second strut end. The first strut end is configured... | 11/25/2003 |
| 6450448 | Airplane wheel unit A drive unit for a wheel of an airplane landing gear includes a pneumatic motor having a first impeller which is driven by pneumatic energy of compressed air and a second impeller which is turned by the expanded exhaust from the first impeller. These impe... | 09/17/2002 |
| 6427942 | Stiffness de-coupled skid landing gear A skid landing gear for a helicopter, in which the directional stiffnesses of the cross members of the skid landing gear have been de-coupled from one another, such that optimization of the longitudinal stiffniess of the cross members may be performed ind... | 08/06/2002 |
| 6244538 | Stiffness de-coupled skid landing gear A skid landing gear for a helicopter, in which the directional stiffnesses of the cross members of the skid landing gear have been de-coupled from one another, such that optimization of the longitudinal stiffness of the cross members may be performed inde... | 06/12/2001 |
| 6173920 | Very large aircraft landing gear having eight wheel truck Very large aircraft landing gear using single mounted eight wheel bogie on dual shock struts. A primary or main two-stage shock absorber and a semi-articulating secondary or auxiliary single-stage shock absorber, each of which are mounted using the second... | 01/16/2001 |
| 6168142 | Hydraulic damper with elastomeric spring assembly A hydraulic damper assembly has a barrel-piston assembly and a spring assembly. The barrel-piston assembly has a barrel with a top portion having an open end, and a piston extending through the open end. The piston has a bottom portion that is located ins... | 01/02/2001 |
| 6142420 | Landing gear pad assembly and method of reducing loading of fasteners upon installation thereof An elastomer landing gear pad assembly (20) and method of reducing loading of installation fasteners (17) including a cap (15) and an elastomer pad (21) including a crown (22) on at least one edge thereof extending between the top (26) and at least one of... | 11/07/2000 |
| 5944283 | Crashworthy landing gear shock A shock absorber, optionally operable as a retractable landing gear actuator, includes a sealed cylinder divided by a cylinder head to define an upper chamber and a lower chamber, the lower chamber further divided by a piston having a piston rod passing i... | 08/31/1999 |
| 5743491 | Very large aircraft landing gear having eight wheel truck Very large aircraft landing gear using single mounted eight wheel bogie on dual shock struts. A primary or main two-stage shock absorber and a semi-articulating secondary or auxiliary single-stage shock absorber, each of which are mounted using the second... | 04/28/1998 |
| 5573204 | Landing gear for aircraft constructed with extruded fluted plastic sheet Aircraft components utilize flexible fluted extruded twin wall plastic sheet to form aileron hinges, horizontal staibilizers and elevators, vertical stabilizers and rudders, compound landing gear, struts, and control systems which are lighter in weight an... | 11/12/1996 |
| 5366181 | Landing gear energy absorption system A landing pad system for absorbing horizontal and vertical impact forces upon engagement with a landing surface (15) where circumferentially arranged landing struts (12) respectively have a clevis (24) which receives a slidable rod member (13) and where t... | 11/22/1994 |
| 5294077 | Shock-absorbing actuator for fitting to landing gear of heavier-than-air aircraft, in particular helicopters The invention relates to a shock-absorbing actuator including a cylindrical body and a hollow rod having an annular piston. The cylindrical body includes a separator piston delimiting two hydraulic fluid chambers, one of which communicates via a distribut... | 03/15/1994 |
| 5224668 | Torque linkage damper An aircraft landing gear damping mechanism improvement of a damper containing piston means in a chamber of a housing, an orifice in the piston means and Belleville springs disposed in the chamber between the wall of the chamber and the piston means on opp... | 07/06/1993 |
| 5217183 | Cantilevered helicopter skid A landing apparatus for use with helicopters comprises a substantially J-shaped cantilevered landing skid having a cantilevered portion and a mounting portion. The cantilevered portion is attached at one end thereof to the mounting portion and extends sub... | 06/08/1993 |
| 5129596 | Landing gear of a model airplane The invention relates to a landing gear, wherein a connecting plate 12 is joined to a strut tube 5 of a shock strut which is joined to a bearing member 1, and wherein the strut tube 5 houses an inner member 8 which with its terminal end engages the bearin... | 07/14/1992 |
| 4892270 | Rocking beam landing gear Landing gear comprising a pivoting strut (1) receiving the rod of a shock absorber (2) which projects downwardly from the strut and is movable in an axial direction (3) relative thereto, a rocking beam (4) mounted to tilt at the bottom end of the shock ab... | 01/09/1990 |
| 4852829 | Undercarriage apparatus for vertical-lift aircraft Axial motion of the wheel assembly of a flat-spring undercarriage for vertical-lift aircraft is provided to permit proper deflection of the flat spring so as to effectively cushion the touchdown of such an aircraft from a hover.... | 08/01/1989 |
| 4821983 | Shock absorbing jack, a stay comprising it and landing gear equipped with such a stay The shock absorbing jack of the invention includes essentially a rod in which a sliding piston defines an extension chamber and which itself slides in a body by means of a piston defining a retraction chamber, the body including a throttling device and, o... | 04/18/1989 |
| 4807522 | Piston and attaching apparatus for piston-and-cylinder arrangements In combination with a piston-and-cylinder arrangement, supporting and attaching apparatus for attaching the piston-and-cylinder arrangement to a supporting structure and for supporting the piston-and-cylinder arrangement includes a frame attached to the c... | 02/28/1989 |
| 4746086 | Nose landing gear jump strut assembly Nose landing gear jump strut assembly includes an outer main housing cylinder containing a jump cylinder which is normally retained in a retracted position but is extendable on command during the take-off ground roll of the aircraft to accelerate the oute... | 05/24/1988 |
| 4659069 | Laminated mechanical elements Flexurally stiff members having low torsional stiffness, high transverse shear resistance and high stability are disclosed. In several embodiments, each member includes a flexurally and torsionally stiff tapered elongate beam surrounded by an outer tube-l... | 04/21/1987 |
| 4637574 | Attenuating, extendible shock-absorbing strut A rapidly extendible, rough-field attenuating shock-absorbing strut, particularly adapted for use with an aircraft having a tricycle landing gear, is used during takeoff and is adapted for rapid extension to provide angular or upward momentum to the aircr... | 01/20/1987 |
| 4630788 | Aircraft landing gear, in particular for helicopters The landing gear comprises: a rod including nested first and second tubes between which there slides a cylinder whose outer end supports a running gear; a strut surrounding the top of the rod and including a steering mechanism cooperating with a rotary tu... | 12/23/1986 |
| 4561612 | Wheel lever landing gear The nose wheel landing gear has the wheel (23) coupled to the rest of the landing gear by a deformable parallelogram (20, 37, 33, 13) which is located to one side of the wheel (23), the wheel lever (20) which supports the wheel is only slightly longer tha... | 12/31/1985 |
| 4558837 | Skid landing gear provided with components having a device for absorbing energy by plastic deformation and/or for limiting stress, and components of this type Skid landing gear provided with components having a device for absorbing energy by plastic deformation and/or for limiting stress, and components of this type. According to the invention, each of two undercarriage parts comprises a skid 170 connected to t... | 12/17/1985 |
| 4548371 | Ultralight aircraft Improved ultralight aircraft constructed with a tubular keel extending over the length of the aircraft from forward of its wing to the tail thereof. The aircraft includes a cantilever engine mount which is carried on a pair of mounting plates extending lo... | 10/22/1985 |
| 4537374 | Structural supports and aircraft landing gears including such supports A structural support comprises inner and outer elements which are telescopingly engaged, a cage secured to the inner element and having apertures in which balls are disposed which are disposed radially between the two elements, and a frangible connection ... | 08/27/1985 |
| 4399963 | Elastic tail skid for gliders and light air planes A tail skid mounted to the airframe of a glider of a light air plane comprises a body of elastic material, a support plate imbedded in the elastic body and a skid wheel yieldingly supported in a metal frame mounted to the skid body and elastically connect... | 08/23/1983 |
| 4359199 | Soft landing gear A bogie type landing gear especially suitable for providing soft landing capabilities for short take-off and landing (STOL) aircraft wherein fore and aft wheels are mounted on opposite ends of a bogie which is pivotally attached to the lower end of a vert... | 11/16/1982 |
| 4155523 | Aircraft landing gear assembly An aircraft landing gear assembly includes a strut and tire arranged for load-bearing contact with an underlying surface. A weight transfer shoe interposed between the tire and support surface at touchdown and arranged to pivot to a clear position after t... | 05/22/1979 |
| 4142698 | Improved aircraft suspension system with mechanism operable to establish system vertical stiffness and damping and mechanism operationally independent thereof to establish system roll stiffness and damping A passive aircraft landing gear system in which the spring rate and damping for aircraft rolling motions about a longitudinal axis are independent of the spring rate and damping for aircraft vertical motions, thereby permitting the landing gear system to ... | 03/06/1979 |
