Abstract: There is provided a facepiece that does not hinder the movement of a wearer. A facepiece that covers a face of a wearer, the facepiece including: a front surface plate that is a transparent plate-like member having a size that can cover the face of the wearer; and a rotation mechanism passing through the front surface plate on either a right or left side of the wearer and being rotatable with respect to the front surface plate.

Abstract: There is provided a back carrier that does not hinder the movement of a wearer. A back carrier having a gas cylinder attached thereto, and carried on wearer's back, the back carrier including: a main body to which the gas cylinder is attached; and an adjuster including a regulator and a pressure demand valve attached to the main body and integrated with each other.

Abstract: A gas fire-extinguishing apparatus according to an embodiment of the invention is configured such that a silencer is disposed on an ejection head which ejects fire-extinguishing gas supplied from a fire-extinguishing gas supply source via a conduit pipe, a diverging pipe and a branch pipe. The configuration suppresses ejection sound caused by an ejection flow of the fire-extinguishing gas.

Abstract: An odor generation alarm and a method for informing an unusual situation having a high attention attracting effect and a high degree of safety are provided. An odor generation alarm includes an odorant receptacle, a drive section, a detector and a circuit section which is a controller. The odorant receptacle contains an odorant. A concentration of the odorant in air at which a person can no longer tolerate a strength of smell is lower than a no observed effect concentration of the odorant. The drive section causes the odorant to be emitted from the odorant receptacle. The detector detects occurrence of an unusual situation, and outputs a detection signal. When the detection signal from the detector is inputted, the controller causes the drive section to emit the odorant in accordance with the detection signal.

Abstract: One embodiment of the present invention discloses an odor-generating alarm apparatus that can ensure the reliability of a releasing operation and the odor dispersibility. In an odor-generating alarm apparatus, when abnormality information indicating occurrence of an abnormal state is supplied from a sensor for occurrence of an abnormal state, an initiator is operated by a circuit portion, and the initiator displaces a piston of a driving portion and displaces a spray can with respect to a casing and switches the spray can to a releasing state, thus releasing an odorous liquid filling the spray can in the form of fine particles.

Abstract: A lightweight fire extinguisher is disclosed. In one embodiment, the fire extinguisher, which is portable, includes a press-source fluid container capable of retaining compressed air; extinguishant containers capable of retaining extinguishant; a pressure-source fluid tube connected to the pressure-source fluid container and the extinguishant containers, for leading the compressed air retained in the pressure-source container to the extinguishant containers; a pressure reducing valve intervening in the pressure-source fluid tube, for reducing pressure of the compressed air flowing down the pressure-source fluid tube; discharge device capable of discharging the extinguishant retained in the extinguishant containers; and an extinguishant tube connected to the extinguishant containers and the discharge device, for leading the extinguishant retained in the extinguishant containers to the discharge device.

Abstract: A gas fire-extinguishing apparatus according to an embodiment of the invention is configured such that a silencer is disposed on an ejection head which ejects fire-extinguishing gas supplied from a fire-extinguishing gas supply source via a conduit pipe, a diverging pipe and a branch pipe. The configuration suppresses ejection sound caused by an ejection flow of the fire-extinguishing gas.

Abstract: A rapid opening pressure regulating valve reduced in size and having improved flow rate characteristics, a fire extinguishing apparatus using the same, a high-pressure gas cylinder apparatus, and an apparatus rapidly supplying a fluid. When the rapid opening pressure regulating valve is assembled, a valve element member body (22) is inserted into a body (1), and a valve element (21) is inserted into an inlet nozzle part (11) from the inlet (11a) thereof and fixed to the lower end of the valve element member body (22). The valve element (21) is fixed to the valve element member body (22) by, for example, threading the inner circumferential surface of the valve element (21) and the corresponding lower end outer peripheral surface of the valve element member body (22) and screwing the lower end of the valve element body (22) into the valve element (21).