A high temperature warning system for a vehicle steer axle an air pressure supply, a normally-closed valve in fluid communication with pressure supply, a heat sensitive control capable of opening the normally-closed valve upon a predetermined temperature, the heat sensitive control mounted adjacent to the wheel end assembly in a heat exchange relationship therewith, and a warning system connected to the air pressure supply for actuation upon opening of the normally-closed valve.

The invention is a gas vent valve (10) for a gas pressure regulator (1), comprising: a tubular body (11) developed between two opposite openings (11a, 11b); a shutter body (12) biased towards a position in which a first opening (11a) of the tubular body (11) is closed and movable from the closed position towards an open position for opening the first opening (11a) due to the effect of a pressure acting from the outside of the tubular body (11) through the first opening (11a); constraining means (13) configured so as to prevent the movement of the shutter body (12) from the closed position towards the open position when the ambient temperature exceeds a predefined value.

Provided is an injection container capable of relieving an overpressure state which includes a housing having therein an accommodation space for accommodating contents, and having an upper sealing cap for sealing an upper part of the accommodation space; a mounting cup mounted to the upper sealing cap, and having a through hole at a middle part thereof, a stem housing including a mounting portion having a hollow portion therein and mounted to the mounting cup, and a communication flow path for communicating the hollow portion with the accommodating space; a valve stem having one side which passes through the through hole, having another side arranged at the hollow portion so as to be slidable, and having an orifice selectively communicated with the hollow portion by the sliding; and a flow path blocking valve configured to block the communication flow path when an overpressure occurs.

A fusible fire-proof emergency cut-off valve is provided. Two sides of a valve body are communicated with an outlet and an inlet, respectively. The inside of the valve body is rotationally connected with a rotating shaft. A valve plate is fixed to one side of the rotating shaft and is positioned at one end of the outlet. A control mechanism comprises a shifting fork box body, one side of the shifting fork box body is connected with a second cylinder, and the other side of the shifting fork box body is connected with a first cylinder. The other side of the rotating shaft is inserted into the shifting fork box body and fixedly connected with a shifting fork. The inside of the second cylinder is provided with a piston rod penetrating through the shifting fork box body and the first cylinder.

A thermally activatable safety valve has at least one microwave transmitter and microwave transmitter component. The microwave transmitter and/or the microwave transmitter component is designed to heat at least one thermally activatable opening element.

An example system for deployment of a compacting head in a waste compartment includes an eutectic alloy fusible link positioned within a waste compartment that breaks at or above a predetermined temperature, a spring tensioned deploy lever that is deployed based on a break of the eutectic alloy fusible link, a pivotal joint assembly that collapses based on deployment of the deploy lever, and a compacting head of a trash compactor that is deployed to compact contents of the waste compartment based on collapse of the pivotal joint assembly.

There is provided a flow-blocking safety valve to prevent an explosion of a portable gas container, wherein, when the portable gas container overheats during use and the temperature rises above a predetermined level, a bridge hold supporting a pin of the safety valve melts and thus a pin or ball securely supported in the bridge holder becomes free to move to close a flow channel through which the gas flows, thereby blocking the gas discharge and preventing an accident occurring when the gas container bursts by overheating.

A closure mechanism and a method for plugging a flow control device of a well is provided. The closure mechanism includes a switch having a hollow interior and a U-shaped portion. The closure mechanism also includes a metal insert located within a portion of the hollow interior of the switch. The mechanism further includes a heating device positioned within the well. In the method, the heating device is activated in the well and melts at least a portion of the metal insert. The melted portion of the metal insert collects and re-solidifies within the U-shaped portion of the switch, thereby closing the switch and plugging the flow control device against flow.

A nuclear plant includes a nuclear reactor, a containment structure that at least partially defines a containment environment of the nuclear reactor, and a passive containment cooling system that causes coolant fluid to flow downwards from a coolant reservoir to a bottom of a coolant channel coupled to the containment structure and rise through the coolant channel toward the coolant reservoir due to absorbing heat from the nuclear reactor. A check valve assembly, in fluid communication with the coolant reservoir, selectively enables one-way flow of a containment fluid from the containment environment to the coolant reservoir, based on a pressure at an inlet being equal to or greater than a threshold magnitude. A fusible plug, in fluid communication with the coolant reservoir at a bottom vertical depth below the bottom of the coolant reservoir, enables coolant fluid to flow into the containment structure based on at least partially melting.

The subject innovation relates to a thermally triggered valve assembly that comprises a dual diaphragm subassembly which in turn employs a removeable thermal fuse configured to cause the valve assembly to close upon a predetermined temperature threshold being exceeded.