An oxygen cannula has an oxygen inlet flowably connectable to an oxygen supply, two neck tubes each flowably connectable to the oxygen inlet, two oxygen delivery each having a tube end and an oxygen outlet, wherein each one of the tube ends is flowably connectable to a corresponding neck tube and each of the oxygen outlets delivers oxygen to a patient, and a harness extending behind the patient's neck, wherein the harness has two ends connectable to the corresponding neck tubes, and wherein the ...

A fibrous catalyst comprises at least one transition metal anchored to a polymer fiber having a plurality of grafted units grafted to a polymer backbone. The polymer backbone may be a polyolefin, a fluorinated polyethylene, cellulose or viscose. The grafted units comprise a salt of a carboxylic acid, which in a preferred embodiment is a sodium salt of acrylic acid. The catalysts are particularly suitable for scavenging oxygen from sealed packages or containers and may further comprise a chemical...

An oxygen absorber includes an iron powder, and a first layer coated on a surface of the iron powder and formed of iron chloride through a chemical reaction. Further, the oxygen absorber includes a matrix material filled with the iron powder covered with the first layer of iron chloride. It is possible to coat the first layer on the surface of the iron powder with a second layer to obtain more uniform coating.

An oxygen lance is disclosed such as used by the steel industry in connection with introducing oxygen into open-hearth or basic oxygen furnaces containing molten steel. The oxygen lance has tubular coolant channels and an oxygen supply channel with an apertured brass casting forming the oxygen delivery tip. The tip includes a coolant chamber centrally thereof. The coolant channels of the lance are placed in communication with the coolant chamber for an improved cooling effect.

An oxygen generator including: a humidifier tank moves up and down according to a horizontal movement of an adjustment knob so that the humidifier tank can be readily detachable, and thus a user can securely and conveniently use the oxygen generator without any water leakage from the humidifier tank during an operation of the oxygen generator. Also, it is possible to reduce noise due to driving of a compressor, noise due to the nitrogen exhaustion, and noise due to driving of a fan portion when ...

An oxygen sensor includes a sensor element, a holder having a hole through which the sensor element is arranged, a sealing positioning portion for sealing a clearance between the sensor element and the holder and positioning the sensor element in the holder and being filled with a ceramic powder, terminals arranged to be in contact with the sensor element and for taking an output from the sensor element, an insulator secured to the holder at a first end and for holding the terminals, a casing se...

An oxygen sensor includes a sensing element detecting an oxygen concentration in a measurement gas that flows in a pipe, a cylindrical protector which covers an outside of the sensing element and whose top end portion projects toward an inside of the pipe. An outside diameter D of the protector and a projection amount L of the protector inside the pipe are set so that a ratio of the product of the outside diameter D and the projection amount L (D.times.L) to a cross-sectional area S of a flow pa...

An apparatus and method for separating breathable oxygen gas from a source of gas and then humidifying the oxygen gas while preventing over humidification of the oxygen gas, the apparatus comprising a gas pathway located on a first side of a water transfer member, an oxygen gas pathway located on a second side of the water transfer member and a separator for separating the breathable oxygen gas from a gas located on the first side of the water transfer member and directing the breathable oxygen ...

An oxygen sensor includes a tubular casing; an oxygen detecting element installed in a leading end of the tubular casing; lead wires each extending from the oxygen detecting element to the outside of the tubular casing through an open base end of the tubular casing, each lead wire including a core wire of metal; a rubber bush plugged in the open base end of the tubular casing, the rubber bush having the lead wires passed therethrough; and a heat resisting structure for protecting the rubber bush...

An oxygen generator comprising an oxygen generating unit including: (a) a chlorate oxygen generating candle for generating oxygen when ignited; and (b) an ignition device for igniting the candle to initiate oxygen generation from the candle. The candle is arranged during operation to sustain propagation of a plurality of burn fronts therethrough, the fronts propagating in different directions.