Abstract: The subject matter of the invention is a device for thermal monitoring of a connection device, said connection device comprising at least two terminals to be monitored, including at least one active terminal, the device comprising at least one electrically conductive fault-initiating element electrically connected to a protective conductor, and electrically insulating detection means for detecting abnormal heating, in thermal contact with each terminal to be monitored, the detection means preventing each fault-initiating element from coming into electrical contact with an active terminal so long as these detection means are not subject to a threshold temperature, and the detection means releasing the fault-initiating element when they are subject to a temperature higher than or equal to the threshold temperature in such a way that this fault-initiating element comes into electrical contact with an active terminal, the thermal monitoring device being characterized in that each fault-initiating element comprise

Abstract: A pneumatic launcher includes a number of chambers for holding a compressed gas and a valve for releasing the compressed gas into a firing chamber to fire a projectile. The firing valve may include a number of surfaces on which pressure acts to slide a sliding valve body between an open position and a closed position. The launcher may include a recess for preventing pressure from acting on one of those surfaces when the valve is in the closed position. A part of the sliding valve body may interact with adjacent parts to form a closed region ahead of the sliding valve body, in order to cushion motion of the sliding valve body. The launcher may have a breech and a breech pin shaped to create a desired gas flow within the firing chamber during firing. The breech may include a breech pin seal which seals between two faces oriented transverse to the axis of the launcher. The launcher barrel may have a number of ribs for improved stability and accuracy.

Abstract: A safety device for monitoring heat in electrical installations includes a first connecting element in thermal relationship with an electrical connection to be monitored, a second element designed to be connected to ground, and an electrical connecting structure that connects the two elements and can adopt two states, one an insulating state in normal operating conditions and the other an interrupting state wherein there is contact and hence grounding of the first element with the second when a critical temperature is reached. The electrical connecting structure may include a fusible ring that releases a piston, or an insulative thermoretractable sheet that retracts.

Abstract: A safety device for monitoring heat for connection in electrical installations, comprises a first connecting element (14) in thermal relationship with an electrical connection to be monitored. A second element (35) is also designed to be connected to the ground of the general electric installations. Electrical connecting structure (21) connects the two elements and can adopt two states, one an insulating state in normal operating conditions and the other an interrupting state wherein there is contact and hence earthing of the first element with the second when a critical temperature is reached.