Abstract: The present invention relates to a speed measurement system allowing the relative speed V of a moving body in relation to an ambient air mass to be measured independently of the atmospheric conditions, the moving body being designed to move at least at subsonic and transonic speeds.

Abstract: Device and method for anticipating the deposition of ice on a runway, comprising an object having a non-zero relative velocity with respect to the atmosphere surrounding the runway, this surrounding atmosphere being at a certain temperature, a means for determining the thickness of ice present on said moving object, which further includes a temperature sensor for measuring the temperature of the runway, a means for regulating the temperature of said object in such a way that the temperature of said moving object is substantially equal to or slightly below the temperature of the runway, a computing means, for defining at time t0 a level of icing at time t1 of the runway as a function of the thickness of ice present on the object, and a warning means allowing the results obtained by the computing means to be communicated to a monitoring station.

Abstract: A reliable, eco-friendly, and reactive device for storing large amounts of recoverable energy with high overall energy efficiency enables the electrical energy on a grid to be collected when there is an abundant amount of available electrical energy on the grid, and redistributes the electrical energy to the grid when the electrical energy is running out. The device mainly includes a compact, dense ballast, the ballast having a matching hydrodynamic and aerodynamic shape, and a flow cavity suitable for holding energy corresponding to the maximum energy of the ballast in the cavity, the ballast being capable of moving along the main axis of flow in the cavity, the device further including an energy collection and recovery element and a control element. A braking coefficient and a safety factor are defined and adjusted on the basis of the nature of the movement of the ballast in the flow cavity.

Abstract: The present invention relates to a speed measurement system allowing the relative speed V of a moving body in relation to an ambient air mass to be measured independently of the atmospheric conditions, the moving body being designed to move at least at subsonic and transonic speeds.

Abstract: Device and method for anticipating the deposition of ice on a runway, comprising an object having a non-zero relative velocity with respect to the atmosphere surrounding the runway, this surrounding atmosphere being at a certain temperature, a means for determining the thickness of ice present on said moving object, which further includes a temperature sensor for measuring the temperature of the runway, a means for regulating the temperature of said object in such a way that the temperature of said moving object is substantially equal to or slightly below the temperature of the runway, a computing means, for defining at time t0 a level of icing at time t1 of the runway as a function of the thickness of ice present on the object, and a warning means allowing the results obtained by the computing means to be communicated to a monitoring station.

Abstract: The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask (2) which provides physiological protection, comprising: an oronasal face piece (10), a semi-flexible lip element (6) which is used to position the oronasal face piece (10) on the user's face (1), and hygienic protection means (4) which are removably-positioned at least partially inside the mask (2). The aforementioned removable protection means (4) comprise (i) a first part (4a) which provides hygienic protection and (ii) a second part (4b) which maintains the hygienic protection means (4) inside the mask (2), said second part (4b) co-operating elastically with the above-mentioned semi-flexible lip element (6) or the face piece (10).

Abstract: The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask (2) which provides physiological protection, comprising: an oronasal face piece (10), a semi-flexible lip element (6) which is used to position the oronasal face piece (10) on the user's face (1), and hygienic protection means (4) which are removably-positioned at least partially inside the mask (2). The aforementioned removable protection means (4) comprise (i) a first part (4a) which provides hygienic protection and (ii) a second part (4b) which maintains the hygienic protection means (4) inside the mask (2), said second part (4b) co-operating elastically with the above-mentioned semi-flexible lip element (6) or the face piece (10).

Abstract: The present invention concerns an Individual cooling system comprising: (a) a garment V; (b) a container containing a block of material liberating an amount of cooling energy by phase change; (c) a pump P. The invention characterized in that it comprises means enabling the continuous operation of the assembly without solidification of the heating medium, even if the solidification temperature of the heating medium is higher than the temperature of the block of material releasing the cooling energy by phase change.

Abstract: The present invention concerns an Individual cooling system comprising: (a) a garment V; (b) a container containing a block of material liberating an amount of cooling energy by phase change; (c) a pump P. The invention characterized in that it comprises means enabling the continuous operation of the assembly without solidification of the heating medium, even if the solidification temperature of the heating medium is higher than the temperature of the block of material releasing the cooling energy by phase change.

Abstract: A head protection system providing several types of head protection comprised of at least three cavities called C1, C2, C3, defining three volumes V1, V2, V3 wherein:C1 is a cavity defined by a mask M for including the mouth and the nose of the wearer.C2 is a cavity defined by the front face of the head component for including at least the eyes of the wearer.C3 is a cavity defined by the rest of the head protection system and for including a large part of the hair of the wearer.Three seals J1, J, J3 insulate the three cavities C1, C2 and C3. These three seals are continuous and close up on themselves.The seal J1 insulates the cavity C1 from the cavity C2, the seal J2 insulates the cavity C2 from the cavity C3, the seal J3 insulates the cavity C3 from the ambient atmosphere.

Abstract: A pneumatic pressure regulator comprised of at least an obturator actuated by at least an elastic membrane comprised of at least an inlet orifice which permits the entry of a fluid under pressure and comprises at least an outlet orifice which permits the exit of a fluid under regulated pressure, characterized by a programmable means (6) which creates a force F on the obturator (2), this force F being defined at the end of a test by varying the value of at least a parameter P of the functioning of the regulator in such a manner that the outer pressure PS=f(P) of the regulator is exactly equal to the value of the predefined pressure PD=f(P) for each value of the parameter P of the operation of the regulator.

Abstract: The equipment comprises a helmet (10) having a rigid shell and inside padding, a balaclava-like hood (26) for separating the head from the environment and designed to be worn directly on the skin, and a mouth-and-nose breathing mask (20) provided with a duct (22) for coupling to an external source of breathable gas, and provided with means (16) for fastening to the helmet. The hood comprises a web (28) in which at least one opening is formed for placing over the eyes of the wearer, and removable transparent goggles (30) provided with means for fastening to the hood and/or to the helmet in a position where the edges of the goggles bear in airtight manner against the web around the opening.

Abstract: Helmet positioning measurement system enabling the determination of the position in space of a helmet by measuring at least three distances (D1, D2, D3. . ) between at least three points located on the helmet (C1, C2, C3. . . ) and three corresponding points (S1, S2, S3. . .) located on the seat or the cabin, these said points being placed in such a way that it is possible to compute at least two position parameters .theta. and .alpha. with a great precision using the following univocal relations:.theta.=f.sub..alpha. (D1, D2, D3, . . .) and .alpha.=f.sub..alpha. (D1, D2, D3, . . .)This system can be used in the aeronautical field, in the car racing field, during tests, where it is important to know the displacement of a human or mannequin head movement.

Abstract: A small container is filled with a mixture of oxygen and nitrogen in a predetermined and precise concentration from a source of liquid oxygen and liquid nitrogen automatically, safely, and without the possibility of a human error. The empty weight is verified. Liquid oxygen is directed to vessel. When the mass of liquid oxygen is stabilized at a preset value, liquid flow is stopped. A second pipe is cooled using liquid nitrogen, by emptying through this pipe to the atmosphere liquid nitrogen. The vessel is filled with liquid nitrogen, until the vessel is full. The correct proportion of oxygen/nitrogen is controlled.

Abstract: The equipment, for use by a pilot, is intended to provide the wearer with breathing gas under a pressure greater than ambient pressure. It comprises a mask having a rigid shell provided with fastening straps for holding the mask on the head, with a coupling for feeding breathing gas under pressure, and with a face cover of elastomer material terminated by an internal sealing lip for pressing against the face. The lip is connected to a front portion of the face cover that is secured to the shell by at least one thin deformable fold. Resilient elements are provided along the fold to exert a force that varies little with the amount of deformation and press the lip against the face.

Abstract: An individual protective equipment for use in a hostile environment comprises a closed suit including a flexible gas-tight garment and a helmet having a transparent visor and having a gas-tight connection with the garment. The equipment also includes a portable tank for storage of liquefied breathing gas and a heat exchanger having a primary circuit whose inlet is connected to an outlet of the storage tank and whose outlet feeds a breathing circuit. A gas motor is connected to receive a flow of breathing gas evaporated in the primary circuit and delivers the flow to the breathing circuit. A blower driven by the motor is inserted in a garment ventilation circuit including the secondary circuit of the exchanger.

Abstract: An Equipment for respiratory protection against pollutants, for use at low altitude comprises a face cover fitted with an atmospheric air supply comprising a filter, a rotary fan to compensate for the head loss due to the filter, and a flexible hose, as well as a self-contained electric power source for energizing the rotary fan, supplying a rated voltage V.sub.0. The fan supplies, under its rated voltage V.sub.0, an air flow rate higher than that necessary for the wearer when the latter is in rest condition, but far lower than the air flow rate required in case of abnormal activity. A pressure sensor causes a temporary increase in the voltage applied to the fan when the overpressure prevailing in the face cover with respect to the surrounding is lower than a predetermined value.

Abstract: Thrust reverser for a jet engine of the type with doors equipped with auxiliary flaps. The invention relates to thrust reversers with doors 13 having a front deflector 15. The door is equipped, on its inner face, with one or two auxiliary flaps 16 articulated about axles 17 and controlled by a lever 21 articulated on the door at 22 and stressed into a retracted flap position by means of a spring 24. At the end of closure of the door, the end 31 of the lever interacts with a stop 33 which ensures that the lever tilts and that the flap 16 moves away from the door 13.

Abstract: The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask (2) which provides physiological protection, comprising: an oronasal face piece (10), a semi-flexible lip element (6) which is used to position the oronasal face piece (10) on the user's face (1), and hygienic protection means (4) which are removably-positioned at least partially inside the mask (2). The aforementioned removable protection means (4) comprise (i) a first part (4a) which provides hygienic protection and (ii) a second part (4b) which maintains the hygienic protection means (4) inside the mask (2), said second part (4b) co-operating elastically with the above-mentioned semi-flexible lip element (6) or the face piece (10).