Abstract: A fire extinguisher comprises an elongated tube. The elongated tube has a pressure-tight, thermoplastic exterior tubular wall and an axially parallel, flame resistant inner wall. The inner tubular wall defines a chamber and the wall has ports through the wall at regular intervals along the length and around the circumference providing fluid communication between the chamber and the exterior tubular wall for a quantity of fire extinguishing fluid under pressure in the chamber. The thermoplastic exterior wall ruptures on contact with flame. The inner tubular wall remains intact and fire extinguishing agent discharges through the ports to extinguish the fire. The apparatus is actuated by contact with flame and requires no actuation by the vehicle crew.

Abstract: Controlled flow of liquid is conducted between aligned inlet and outlet pipe sections through a valve housing within which a solid valve element is sealed and supported for electrically powered displacement between a fully open position establishing unrestricted flow and a fully closed position blocking inflow from the inlet pipe section and outflow from the outlet pipe section. The valve element is operatively displaced either by rotation or by linear movement under electrically powered control through a valve stem connected thereto, while a manual actuator is also connected to the valve stem outside of the valve housing for imparting reduced dithering displacement to the valve element so as to insure that it is in proper and readied working condition. Such electrically powered operational displacement of the valve element is sensed in response to movement of the valve stem.

Abstract: Oil spill polluted water is conducted under pressure in sequence through arator devices to collect and burn a polluted water mixture having its oil concentration increased by extraction of water therefrom during axial flow through the separator devices. Such water extraction is effected by sequential radial outflow through oil flow blocking filter walls of the separator devices in response to rotation thereof.

Abstract: Oil spill polluted water is conducted under pressure in sequence through arator devices to collect and burn a polluted water mixture having its oil concentration increased by extraction of water therefrom during axial flow through the separator devices. Such water extraction is effected by sequential radial outflow through oil flow blocking filter walls of the separator devices in response to rotation thereof.

Abstract: A thermoelectric material is provided whose temperature decreases upon passing an electric current therethrough. The material is a mixture of poly-3-octylthiophene and ferric chloride in a respective molar ratio of approximately 2:1.