Abstract: A device for attachment to a tank in the event of an emergency requiring drainage of the tank. The device is adapted to be coupled to a strategically located port on the tank and upon coupling therewith automatically ejects a plug to establish an outflow circuit from the tank. The device includes a flow limiting feature which is calibrated to avoid the buildup of an excessive vacuum in the tank, provisions to introduce an inert replacement gas into the tank, and structure to limit the pressure of the replacement gas.

Abstract: The specification describes a process and apparatus for pumping and removal of unwanted gases by effecting a chemical reaction between the gases and a highly reactive substance which is in the form of aerosol particles, to form a non-volatile, solid reaction product. In one embodiment of the invention, the reactive substance is initially provided in the form of a solid; the solid is heated to liquify it; and the liquid is forced through spray nozzles under high pressure to form the desired aerosol particles, which then react with the gas to be pumped.

Abstract: A vacuum chamber (10, 10') having first and second ends (28, 28') with a flow passage (30) at each end for directing the flow of particulate material into and out of the vacuum chamber. The vacuum chamber has a vacuum outlet duct (26) midway between the first and second ends (28, 28') thereof for removing gaseous contaminants. A flow control structure (32, 32') is disposed within the vacuum chamber (10, 10') between said first and second ends and has symmetrical ends for receiving particulate material from one of the flow passages (30) and directing the flow of particulate material to the other one of the flow passages while isolating the flow of particulate material from the surrounding space of the vacuum chamber through the central portion of the vacuum chamber adjacent the vacuum outlet duct (26) and for dispersing the particulate material while being subjected to the vacuum chamber adjacent the other one of the flow passages before the particulate material flows out the other one of the flow passages.

Abstract: An apparatus for stabilizing the pressure of a seal gas includes a hollow body (10) having a first pipe (11) with a conductance C.sub.1, a second pipe (12) with a conductance C.sub.2 and a third pipe (13) with a conductance C.sub.3, all these pipes communicating with each other. The conductance C.sub.1 is smaller than either of the conductances C.sub.2 and C.sub.3. The first pipe (11) is connected to a source (15) of the same kind of gas as a desired gas to be sealed in the tubular bulb (1), the second pipe (12) is connected to a decompressing system (17), and the third pipe (13) is connected to the tubular bulb (1). In accordance with both the apparatus and method according to the present invention, the conductances C.sub.1 and C.sub.2 are so set that a gas pressure in the third pipe (13) may be made equal to or lower than a desired pressure to be attained in the tubular bulb (1) under conditions wherein the gas from the gas source (15) constantly flows from the first pipe to the second pipe.

Abstract: A device for evacuating air from a receptacle containing deteriorative material and charging the receptacle with an inert gas. The device has a nozzle by which the receptacle may be charged. The nozzle is connected to a gas supply source having means for sensing air and gas contents and pressures. The device is operated to reduce the oxygen in the receptacle and discharge an inert gas into the receptacle while monitoring the oxygen content therein.

Abstract: A system and methods with scavenging capabilities for simultaneously filling and evacuating a plurality of separate pressure vessels including valved conduits interconnecting a source of pressurized fluid and a source of vacuum separately to at least two pressure vessels whereby while one vessel is being filled the other is being evacuated and means to connect an evacuated tank to portions of the system for the purpose of using the vacuum therein to scavenge residue gas in said portions.

Abstract: A motor vehicle headlight comprises a curved reflector having a lens bonded to the front thereof. A tungsten-halogen capsule is disposed within the reflector. A filling hole extends through the rear of the reflector, the hole being hermetically sealed by means of a nonrigid sealing material.

Abstract: A low pressure gas regulator for purging vessels in which valve means first connects a vessel to be purged with a vacuum pump, and then when the vessel is substantially evacuated, it connects the evacuated vessel with a source of purging gas.

Abstract: A system for evacuating selectively two side-by-side chambers having a common wall with a pressure passageway therein includes a closure slidable between two positions where one chamber is connected to sub-atmospheric pressure with the common pressure passageway while the other is connected to ambient, and including circuit means for controlling the application of pressure and the release of same.

Abstract: There is disclosed a method of diffusing gaseous medium such as tritium into a vessel such as a tube of an overvoltage protector. According to the method, a vessel such as a tube including a wall portion made of a material permitting diffusion of gas therethrough is provided. This vessel is heated to a predetermined elevated temperature and sealed while the vessel is at the elevated temperature. The vessel is thereupon evacuated and exposed to an atmosphere of gas to be diffused into the vessel while maintaining this atmosphere for a predetermined period of time at an elevated temperature less than the sealing temperature and at a pressure higher than the pressure within the sealed and evacuated vessel, thereby causing diffusion of gas into the vessel for filling the same with the gas. There is also disclosed a device for carrying out the hereinbefore described method.