Patents by Inventor Jean Masclet

Jean Masclet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4561612
    Abstract: 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 than the wheel radius. This arrangement enables the landing gear to be shortened when retracted without the wheel itself being offset sideways, thereby occupying less space overall.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: December 31, 1985
    Assignee: Messier-Hispaono-Bugatti (S.A.)
    Inventor: Jean Masclet
  • Patent number: 4506869
    Abstract: The shock absorber is characterized by the fact that it comprises a rod (1) sliding in a cylinder (2) through a piston (3) to determine at least two variable-volume chambers (4,6), ports (40,41) for placing the two chambers in communication, one of the two chambers (4) comprising first elastic fluid (44) at a first given pressure, the other chamber (6) comprising second elastic fluid (10) at a second given pressure, controllable according to at least one parameter, corresponding to a force to be absorbed.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: March 26, 1985
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Jacques Veaux
  • Patent number: 4405119
    Abstract: An oleopneumatic suspension with variable throttle orifices, particularly for aircraft landing gear comprising a rod (1) enclosing a pneumatic spring (2) and being fixed with respect to a piston (4) sliding in a cylinder (3), two valves (6) and (7) with permanent throttle orifices, the valve (6), which is of greater cross-section, throttling in the compression phase and the valve (7), which is of lesser cross-section, throttling in the extension phase, the suspension comprising in addition a throttle device, the section of whose orifice varies in dependence on the position and the direction of displacement of the piston (4) in the cylinder (3) so that over a given distance around a predetermined equilibrium position the orifices ensuring throttling in the compression and extension phases are of cross-sections respectively greater than the corresponding orifices over the remainder of the distance covered by the piston (4) in the cylinder (3).
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: September 20, 1983
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4388763
    Abstract: Devices for detecting the displacement of an element relative to a referential. A first end of a recopying bar is connected with the element and the other end is capable of cooperating with a mechanism for determining the displacement of this second end relative to the referential. The device is particularly useful for determining the deformation on landing gears of aerodynes.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: June 21, 1983
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Jacques Veaux
  • Patent number: 4380323
    Abstract: A main undercarriage train for an aircraft which is retractable substantially laterally, the train comprising two undercarriages which comprise identical legs each having a plane of symmetry which passes through its pivot mounting axis which is inclined relative to the plane of symmetry of the aircraft.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: April 19, 1983
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4367529
    Abstract: An automatic braking method and apparatus for a vehicle, having particular applicability to aircraft, wherein a program deceleration signal is generated according to a preselected deceleration. A signal which is a function of the actual speed of the vehicle is compared with the program signal, and a difference signal is produced. The difference signal controls the actuation of the braking system of the vehicle to result in braking thereof in accordance with the preselected deceleration.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: January 4, 1983
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Claude Marcheron
  • Patent number: 4365643
    Abstract: The present invention relates to a fuse for a wheel equipped with a pneumatic tire.The fuse is constituted in the form of a screw (1) whereof the head (7) is traversed by an evacuation duct (3) receiving a check valve (8) obturating this duct (3); the fuse being characterized by the fact that it comprises a retainer (17), a part of which is embedded in the head, and another part cooperates with the check valve to hold it.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: December 28, 1982
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Roger Papay
  • Patent number: 4355773
    Abstract: An aircraft landing gear including a leg member supporting at least one wheel, the leg having a first point of attachment around a first axis of rotation about a first point on the aircraft, a strut including a rod and a lever pivotally mounted on one another around a third axis, the rod having a second axis of rotation on a second point of attachment to the aircraft and the lever being pivoted about a fourth axis on the leg, and an operating jack applying at least one rotational torque to the strut and the leg wherein one end of the jack is connected to a third point on the leg and the other end of the jack is connected to a fourth point on the strut, the third and fourth points being located substantially near the first and second points of attachment.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: October 26, 1982
    Assignee: Messier-Hispano-Bugatti (SA)
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4350312
    Abstract: A single lever control operable with a single finger of the same hand holding the fishing reel and fishing pole. A mechanical double monostable toggle forming a single assembly for pivoting a line guide of the fishing reel. The line guide is received by its two ends in two supports, of which the first is displaceable rotatably and in translatory motion. The said single assembly of control means for pivoting the line guide comprises a control lever of which rotation in a first direction effects raising of the first support in order to cause pivoting of the line guide from the first to the second position, and of which rotation in a second direction effects rotation of the first support in order to cause pivoting of the line guide from the second to the first position.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: September 21, 1982
    Inventor: Jean Masclet
  • Patent number: 4323001
    Abstract: A bracing jack comprising a cylinder and a jack bar slidable in the cylinder from a bar extended position to a bar retracted position, the jack having an internal locking mechanism including a hydraulic and a mechanical actuator for unlocking under load.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: April 6, 1982
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Jacques Veaux
  • Patent number: 4312485
    Abstract: A main landing gear with swing-bar and lateral lifting for aircraft. Two undercarriages are provided which are positioned symmetrically on either side of the longitudinal plane of symmetry of the aircraft, each one having a leg 1 articulated around a lifting axis 5, and a swing bar 16 around a transverse axis 18. The swing bar 16 carries a wheel 21 pivotally mounted around an axis of rotation 19. The maneuvering of the undercarriage and the bracing thereof are insured by a bracing jack 13, and the deflections of swing-bar 16 are damped by a shock absorber 10. The leg 1 of the undercarriage has a first plane of symmetry (X,X) perpendicular to the lifting axis 5 and the longitudinal plane of symmetry of the aircraft and the swing-bar 16 has a second plane of symmetry (Y,Y) defined by the transverse axis 18 of the axis of rotation 19.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: January 26, 1982
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4312429
    Abstract: A hydraulic braking device for a load subjected to shocks and vibrations for the stabilization of loads in thermal or nuclear generating stations.The braking device has a cylinder 1 in which there slides the piston 4 of a rod 7 bearing two flap valves 18 and 19 to brake the passage at high speed of hydraulic fluid from one chamber 15 or 16 to the other. These valves communicate with a reservoir 17, pressurized by springs 31 to 34 and accumulate the expansions of the fluid. A secondary rod 29 which has displacements with respect to rod 7 which are reduced relative to the displacement of piston of reservoir 27 with respect to this rod 7 serves as a leak indicator.Application to the stabilization of loads such as high-temperature steam conduits in thermal or nuclear generating stations.
    Type: Grant
    Filed: April 2, 1980
    Date of Patent: January 26, 1982
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4284255
    Abstract: Shock absorbers and shock absorber jacks each of which comprises a shaft containing a low-pressure chamber and sliding in a first chamber of a first cylinder which is separated from another or second chamber which contains a high-pressure chamber, by means of a partition which is traversed by a grooved shaft borne by a separator piston in the other chamber and guided in a sleeve borne by the partition. In the event of the penetration of the shaft into the first cylinder at a rate of very much higher than normal, then the two grooves in the shaft communicate with each other and permit the flow of oil from the first chamber towards the second chamber and towards the low-pressure chamber because of a radial passage through the sleeve near the partition.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: August 18, 1981
    Assignee: Messier-Hispano-Bugatti (SA)
    Inventors: Jean Masclet, Jacques Veaux
  • Patent number: 4241814
    Abstract: A mechanical-hydraulic damper for a load which is subject to shocks and vibrations, comprising a co-operating pair of elements, the first of the pair of elements being mounted in a body for relative axial movement in relation to the body and the second of the pair of elements being rotatably mounted in the body and so coupled to the first element that relative axial movement of the first element causes rotation of the second element which is coupled to a hydraulic system which resists sudden or rapid rotation of the second element. The pair of co-operating elements may comprise a screw-nut assembly. The hydraulic system may comprise a reversible pump driven by the rotatable element and pumping hydraulic fluid round a closed circuit including a throttling orifice. Alternatively the hydraulic system may comprise a rotary laminar hydraulic damper filled with high viscosity oil.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: December 30, 1980
    Assignee: Messier-Hispano-Bugatti
    Inventor: Jean Masclet
  • Patent number: 4199119
    Abstract: A wing mounted retractable aircraft undercarriage with a trailing wheel or wheels comprising a rigid leg casing, pivotally mounted on the wing about a retraction axis, a rocking lever pivoted on the leg casing, supporting the wheel or wheels and mounting the lower pivot connection of a shock absorber located behind the leg casing, an upper pivot connection of the shock absorber to a lever, which lever is pivotable on the leg casing about an articulation axis which is distinct from the retraction axis, a rod of fixed length pivoted at one end to the lever and at the other end to a fixed position on the wing, so that upon retraction of the undercarriage by the action of a retraction jack, the rod causes rotation of the lever with respect to the leg casing, which rotation, by traction of the expanded shock absorber causes pivoting, with respect to the leg casing, of the rocking lever mounting the wheel or wheels towards the retraction axis, and thus an overall shortening of the undercarriage.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: April 22, 1980
    Assignee: Messier-Hispano-Bugatti
    Inventor: Jean Masclet
  • Patent number: 4189117
    Abstract: A retractable fuselage mounted undercarriage comprising a leg casing mounted to pivot on a main universal joint about an axis which extends longitudinally of the aircraft, the leg casing mounting a wheel assembly which can pivot on the leg casing, a lateral deflection shock absorber and a manoeuvreing and wind bracing jack each connected to the leg casing by a joint and each connected to the fuselage by a joint, the main universal joint being mounted to pivot on the fuselage about an inclined retraction axis which does not pass through the point where the shock absorber is connected to the fuselage, so that, during lowering and retraction of the undercarriage effected by extending or retracting the manoeuvreing and wind bracing jack, the shock absorber acts as a directer bar and orientates the axis of the leg casing, which leg casing is rotated as the main universal joint pivots on the fuselage about the inclined retraction axis.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: February 19, 1980
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4189192
    Abstract: An apparatus for adjusting the braking force of brakes applied to vehicle wheels in which the brakes are operated under the control of an electromagnet as a function of the deceleration and acceleration of the wheels. For a given braking signal, the braking force is eliminated when the deceleration of the braked wheel exceeds a predetermined threshold value, which may occur, for example, when the wheel starts to freely skid, and the reapplication of the braking force is delayed for a period of time proportional to the magnitude of deceleration of the wheel and inversely proportional to the subsequent magnitude of acceleration of the wheel when it picks up speed only when such acceleration exceeds a threshold which permits the wheel to gain speed irrespective of the frictional adherence of the wheel to the ground.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: February 19, 1980
    Assignee: Messier-Hispano
    Inventor: Jean Masclet
  • Patent number: 4170332
    Abstract: A landing gear undercarriage which attaches to and retracts into the fuselage of an aircraft. The undercarriage has left and right matching portions, each of which includes a forward strut and a rearward hydraulic jack, both of which are coupled to the fuselage by cardan joints. A shock absorber is mounted on the fuselage outside of the strut and converges downwardly towards the strut to which it is coupled at the bottom by a cardan joint. A cylindrical sleeve is mounted at the bottom of the strut, and a spindle which supports a landing wheel is rotatably mounted in the sleeve. The bottom of the hydraulic jack is coupled to the spindle, and the arrangement is such that as the jack causes the undercarriage to retract into the fuselage, the spindle and wheel are rotated into a flat position in which they may be stored in a relatively small landing gear well.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: October 9, 1979
    Assignee: Messier-Hispano-Bugatti
    Inventors: Jean Masclet, Andre Turiot
  • Patent number: 4138164
    Abstract: Apparatus for adjusting the braking force of brakes applied to vehicle wheels wherein the brakes are operated in on-off manner as a function of the deceleration or acceleration of the wheels. For a given braking signal the braking force is eliminated when the deceleration of the braked wheel exceeds a predetermined threshold value and the reapplication of the braking force is delayed for a period of time proportional to the magnitude and duration of deceleration of the wheel and inversely proportional to subsequent acceleration of the wheel when such acceleration exceeds a predetermined threshold.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: February 6, 1979
    Assignee: Messer-Hispano
    Inventor: Jean Masclet
  • Patent number: 4119179
    Abstract: A disc brake comprising a plurality of alternating stators and rotors each comprising a friction lining at least one of which is constituted by a support and a shoe engaged in the support. Each shoe comprises a first part of larger cross-section and a second part of smaller cross-section extending from the first part and defining therewith a shoulder, the shoe being mounted in a support having an aperture constituted by a first bore of larger diameter extending partly in the depth of the support and a second bore of smaller diameter extending in the remainder of the depth of the respective support so as to define a shoulder against which the shoulder of the shoe can bear. Two adjacent shoes are disposed in respective supports to face in opposite directions in such supports. Furthermore, the shoes in adjacent supports are geometrically identical.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: October 10, 1978
    Assignee: Messier-Hispano
    Inventor: Jean Masclet