Abstract: A propulsion unit includes at least one exhaust pipe (62, 76) that includes an air discharge that is delimited by a trailing edge (78, 82). The end part of the exhaust pipe (62, 76) includes two scalloped shapes (84) that each correspond to a preferred acoustic radiation direction, separated by advanced parts (86) that can limit the acoustic radiation, whereby the scalloped shapes are offset upward relative to the horizontal median plane.

Abstract: The object of the invention is a pipe that is integrated into the aircraft piping, characterized in that it is produced from a composite material that comprises a fiber-reinforced geopolymer resin matrix.

Abstract: The object of the invention is a composition for protecting and/or preserving cells, tissues or organs, characterized in that it comprises at least one cyclodextrin, preferably closely combined with an antioxidant. The invention also relates to a process for producing this composition and its uses.

Abstract: This invention relates to a transmission between a drive element and a drive shaft (1) of the wheels of a self-propelled tractor vehicle, in particular with an accompanying driver walking behind the vehicle, such as a lawn mower, whereby the transmission comprises—generally housed at least partially inside a box (40)—a progressive friction clutch of the type that comprises at least one rotary driving element (30) and two driven elements (5A, 5B) that are carried by the drive shaft (1) and are integral in rotation with the latter, whereby these driving elements (30) and driven elements (5A, 5B) are, under the action of a control element (20), brought into variable-tightening support contact to obtain a variation of the torque that is transmitted to the shaft (1).

Abstract: A biodegradable polyacrylamide gel that is obtained from acrylamide monomers that are connected to one another by at least one amino acid includes at least one acryloylated amine or acryloylated amide group, or by at least one amino acid oligopeptide that comprises at least one acryloylated amine or acryloylated amide group. The process for synthesis of this gel and its uses are also disclosed.

Abstract: An assembly for storage and controlled dispensing of unit products, constituted by a container for bulk storage of the products, means for reclosably closing the container, including dehydrating means, and a flow-limiting device for dispensing products. The flow-limiting device includes (a) a tearable membrane connected to the edge of the dispensing aperture and totally blocking the aperture and equipped with gripping and pulling means, and (b) a passage allowing for a gas exchange and preventing, by virtue of its restricted dimensions, the dispensing of the packaged products.

Abstract: The inventive multi-environment engine (1) comprises a body (2), wings (4, 5) and a propulsion system (8), wherein at least one wing is foldable between a first levitation flying position, a second levitation position for travelling on a water surface and a third diving position.

Abstract: A thread accumulation device that essentially consists of a discharge chute for receiving and guiding a strand that is formed by a thread take-up device (10) and a carriage (14) for taking up a thread spiral, guided in parallel to the longitudinal axis of the discharge chute that is equipped with a tension rail device and resting on the end of the strand of the side that is opposite to the thread take-up device (10). The device is characterized in that the carriage (14) for taking up a thread spiral that is guided on the discharge chute is equipped with a unit (16) for monitoring its movement and support on the end of the strand of the side that is opposite to the thread take-up device (10). The invention can be applied more particularly in the field of the textile industry, in particular of the treatment of thread.

Abstract: A beam for reinforcing the structure of an aircraft is located inside the fuselage of the aircraft. The fuselage includes at least one pressurized zone (P) that is separated by at least one airtight wall (18) of at least one other non-pressurized zone (16), the beam and the at least one airtight wall being intersecting. The beam traverses the at least one airtight wall (18) that includes a cutaway that is adapted to the section of the beam, whereby sealing elements (30) are provided to ensure the sealing between the beam and the airtight wall (18) that is traversed.

Abstract: An articulation device connects a door (46) of an aircraft nacelle (30), the nacelle (30) including an external wall called a fairing including at least one opening (44) adapted to be closed by at least the door (46). The articulation device includes at least one arm (56) connected by a first pivotal axle (58) to the nacelle (30) and by a second pivotal axle (60) to the door (46), the two pivotal axles (58, 60) being substantially parallel.

Abstract: A wheelbarrow constituted by a body (1) mounted on an assembly of handlebars (2)-feet (3)-wheel bearings (4) and a wheel (5), wherein the body (1) is of synthetic material and has an upper turned over edge (1?) and is moreover provided with at least one device (1?) for supporting and holding tools, as well as a removable double bottom (6) matching the internal contours of the body (1) at a certain distance from the bottom of this latter.