Abstract: A safety device to be worn by passengers of an aircraft comprising a bracelet and means to link a number of these bracelets to monitor and to track the movements of passengers and when needed immobilise a passenger if his behaviour proves dangerous. The bracelet may comprise means of identification, communication, indicators and active elements subjected to an external control.

Abstract: A mudguard gritter that can be easily installed on trucks, school buses, delivery trucks and semitrailers. It can be fixed to supports of existing mudguards. The mudguard gritter comprises a container forming a hopper having the shape of a conventional aileron, with a top rectangular opening of 150 mm per 600 mm and a bottom opening of 25 mm per 600 mm. The top site has a door with hinges that make it possible to fill up the container with fine gravel. A rake supports eccentric vertical stems, which meet through an intermediate guide, at the bottom, on a mobile plate driven by a dual action cylinder powered by compressed air passing through a valve whose control is on the dashboard of the vehicle.

Abstract: A safety device to be worn by passengers of an aircraft comprising a bracelet and means to link a number of these bracelets to monitor and to track the movements of passengers and when needed immobilise a passenger if his behaviour proves dangerous. The bracelet may comprise means of identification, communication, indicators and active elements subjected to an external control.

Abstract: A retractable tarpaulin that can cover the cargo of truck, either partially or entirely. This system comprises a pair of posts that slide in notches at the periphery of a trailer flat bed, at the desired position according to the size of the cargo to cover. The width is also adjustable and includes an overhang of up to 12″ on either side. The length may be reduced or extended at both front end and aft end if needed. The height of these posts can be adjusted to adapt to the cargo. A series of cables covers the distance from one post to the other to support the tarpaulin and a drum arrangement stretches the cables to provide tightness to support the tarpaulin. As the tarp is retracted a number of rings attached to the tarp are successively engaged in a cantilever hanger to keep the tarp in a small storage when not in use.

Abstract: A universal chain for wheels that is easy to install. It has a series of sections of chains to cover the tread of a tire as well as its inner and outer sidewalls. Each section comprises a number of transverse links caught by two lengths of chains placed radially along the shoulders and rigidified by arches so that the chain has a cambered form for ease of installation. On the inner shoulder the sections of chains are caught by hooks (34) that pass through a ring (36). The outer shoulder comprises an assembly part having two half-arches and an adjustable female male assembly (56) that locks with a preestablished tension and that may be unlocked when needed. This system allows using lengths of chains weighing 10 kilograms and having a certain rigidity. This type of chains is perfect for trucks driving on icy conditions and on hilly roads.

Abstract: A retractable tarpaulin that can cover the cargo of a trailer (20), either partially or entirely. This system comprises a pair of posts (30) that slide in notches (24) at the periphery of a trailer bed (22), at the desired position according to the size of the cargo to cover. The width is also adjustable and includes an overhang (88) of up to 12″ on either side. The length may be reduced or extended at both front end and aft end if needed. The height of the posts can be adjusted to adapt to the cargo. A series of top cables (54) support the top tarpaulin (57) and a drum arrangement (55) stretches the cables to provide tightness to support the top tarpaulin when in use. As the top tarp is retracted a number of rings (86) attached to the tarp are successively engaged in a small vertical tube (53) and each section of the top tarp is sequentially piled into a small storage housing (52). The side tarp (75) is folded like a curtain into a horizontal support (83).

Abstract: A mudguard gritter that can be easily installed on trucks, school buses, delivery trucks and semitrailers. It can be fixed to supports of existing mudguards. The mudguard gritter comprises a container forming a hopper having the shape of a conventional aileron, with a top rectangular opening of 150 mm per 600 mm and a bottom opening of 25 mm per 600 mm. The top site has a door with hinges that make it possible to fill up the container with fine gravel. A rake supports eccentric vertical stems, which meet through an intermediate guide, at the bottom, on a mobile plate driven by a dual action cylinder powered by compressed air passing through a valve whose control is on the dashboard of the vehicle.

Abstract: A universal chain for wheels that is easy to install. It has a series of sections of chains to cover the thread of a tire as well as its inner and outer sidewalls. Each section comprises a number of transverse links caught by two lengths of chains placed radially along the shoulders and rigidified by arches so that the chain has a cambered form for ease of installation. On the inner shoulder the sections of chains are caught by hooks (34) that pass through a ring (36). The outer shoulder comprises an assembly part having two half-arches and an adjustable female male assembly (56) that locks with a preestablished tension and that may be unlocked when needed. This system allows using lengths of chains weighing 10 kilograms and having a certain rigidity. This type of chains is perfect for trucks driving on icy conditions and on hilly roads.