Abstract: An air gun system producing blasts resulting from the rapid opening of a main valve by movement of a piston which, as it moves out of its seat, releases air accumulated under pressure in a tank, the opening of the valve being triggered by an electric control module located on or in immediate proximity to the air gun controlled by an automatic command generator, in which the control module communicates with the command generator using two-way wireless communication.

Abstract: A sealing strip comprising a part of a configuration for fastening to a guide wall of a conveyor, the fastening configuration allowing for interlocking via elastic deformation of one of two parts of the fastening configuration.

Abstract: A monostable valve for controlling the sudden discharge of a gas contained in an enclosure. This valve comprises, in a control conduit (17), a second shutoff (18) between a closed position wherein the gas contained in the control chamber (13) cannot escape and a discharge position wherein the gas contained in the control chamber can escape, a drive mechanism (19) for rapidly moving the control shutoff to its discharge position, and a mechanism (20) for returning the control shutter to its closed position, respectively, and in that the area defined by the cross section of the discharge conduit (11) is at least constant, even increasing from the rear chamber (9) toward the outlet conduit (6) in order to limit head loss, and the main shutter (12) has low inertia.