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7381377 |
Method for controlled production of a gas
An apparatus is provided to generate a gas by mixing chemicals with water. Typically, the production of gas, particularly oxygen, by combining water with powders and other dry chemicals has not...
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7278422 |
Open-circuit self-contained underwater breathing apparatus
A self-contained open-circuit breathing apparatus for use within a body of water naturally containing dissolved air. The apparatus is adapted to provide breathable air to a diver. The apparatus...
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7225806 |
Portable oxygen regenerating escape hood
A protective device to be emplaced over the head of a user comprises a sack-like member fabricated from a flexible film material and having an opening to enable a user to place the sack-like member...
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7171964 |
Instant chemical based flexible oxygen in a non-pressurized flexible or rigid containment system
The invention is a portable, non-pressurized oxygen generation device. A first chamber holds an oxygen liberating chemical, and a catalyst from a second chamber begins the oxygen liberating...
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7121276 |
Personal oxygen concentrator
An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen...
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6957651 |
System for simulating metabolic consumption of oxygen
A method and system are provided for simulating the metabolic consumption of oxygen contained in a breathable gas. A variable volume chamber cyclically increases/decreases in volume to receive the...
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6691702 |
Portable oxygen concentration system and method of using the same
A portable oxygen concentrator system adapted to be readily transported by a user includes a rechargeable energy source and a concentrator powered by the energy source. The concentrator converts...
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6684881 |
Rechargeable breathing apparatus particularly an apparatus for divers
A rechargeable breathing apparatus is disclosed including a closed breathing system for receiving exhaled air containing a CO 2 adsorber for the inhaled air, a breathing bellows for receiving the...
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6629525 |
Portable oxygen concentration system and method of using the same
The present invention is directed to a portable oxygen concentrator system adapted to be transported by a user. The portable oxygen concentrator system includes an energy source, an air separation...
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6443149 |
Closed circuit escape breathing apparatus
A closed circuit breathing apparatus comprising: a container containing a reactant for reacting with carbon dioxide and water to produce oxygen gas; a housing for the container; a foldable...
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6347627 |
Nitrous oxide based oxygen supply system
A self-contained system which converts nitrous oxide to a breathable gas mixture of nitrogen and oxygen. In the preferred embodiment of the present invention, a portable system is disclosed wherein...
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6328033 |
Powder inhaler
An inhaler device for administration of a dry powder to a patient includes a package containing a dose of the dry powder and a magnetic field generator, which produces a magnetic field in a...
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6295984 |
Diver's backpack
This disclosure is directed to a backpack comprising a frame with straps and surrounding side wall for easy attachment on a diver. A first gas storage tank stores either oxygen or air, which is...
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6267114 |
Handy oxygen generator
A handy oxygen generator containing an oxygen generating agent which reacts with water to evolve oxygen can arbitrarily supply plenty of oxygen under all circumstances at any time. The oxygen...
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6155254 |
Self-contained device for chemically producing high-pressure breathing oxygen
The invention relates to a self-contained device for generating high-pressure breathing oxygen, of the type comprising an oxygen-generating chemical candle (3), a gastight confinement chamber...
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6142151 |
Spool valve for switching air flows between two beds
A dual-bed ventilation air regeneration system is adapted for use in conjunction with a ventilation or respiration air loop of an astronaut space suit wherein the ventilation loop includes inlet...
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6123069 |
Oxygen breathing system with programmed oxygen delivery
The oxygen breathing system with programmed oxygen delivery comprises a breathing circuit which a user exhales into and inhales from and a source of oxygen which delivers oxygen to the breathing...
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6089230 |
Aircraft passenger oxygen delivery unit having shiftable oxygen generating candle
An oxygen delivery unit (20) having a housing (22), a release plate (24), an oxygen generator (26), a respirator assembly (28), a release lanyard assembly (30), and an activation lanyard assembly...
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5992413 |
Heat and moisture exchanger and generator
Apparatus for heating and humidifying respiratory gases comprise a housing, a gas permeable member and generating material. The housing includes an inlet adapted for connection to a tracheal tube...
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5916535 |
Device for generating oxygen
A device for generating oxygen by the thermal decomposition of a chemical located in a cartridge housing is improved such that a profile of the oxygen release can be set in a simple manner. To...
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5823181 |
Handy oxygen generator
A handy oxygen generator including a casing defining a reaction chamber, an air accumulator and an air passage between the reaction chamber and the air accumulator, a hand pump for pumping air into...
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5816244 |
Modular structural system for personal service and oxygen dispensing system modules for use in transport aircraft with improved latch and testing capability
The compression molded aircraft personal service unit and integrated oxygen dispensing system module housings are formed by compression molding of a sheet molding material. The integrated oxygen...
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5804146 |
Chemical oxygen generator
A chemical oxygen generator with a chemical mass, which is accommodated inside a container, generates oxygen by a chemical reaction, and is held in the container by a gas-permeable fibrous...
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5803062 |
Compression molded integrated personal service and oxygen modules for use in transport aircraft with improved mask repacking and test access
The compression molded aircraft personal service unit and integrated oxygen module housings are formed by compression molding of a sheet or bulk molding material. The integrated oxygen module can...
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5765549 |
Respirator
A respirator to be worn in front of the chest with regeneration of the breathing air, containing a regenerating cartridge with a plurality of chemical layers, a breathing bag, a connection piece on...
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5706801 |
Sensing and communications system for use with oxygen delivery apparatus
An oxygen delivery apparatus is used to supply oxygen-enriched air to a patient via a diffuser. A communication module containing an in-line flowmeter and oxygen concentration sensor is provided to...
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5690101 |
Portable air purifier with chemical reaction zone
A portable air purifier device for emergency use by an individual in an atmosphere that contains air which has been contaminated with one or more combustion products, said combustion products...
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5690099 |
Method and apparatus for revitalizing exhaled air
A canister containing one or more working compounds formed of a peroxide and/or superoxide of one or more metals of the alkali and alkaline-earth metal groups such as KO 2 and CaO 2 and a...
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5685298 |
Artificial ventilation mask with PPCO.sub.2 reducer and/or epinephrine source in mask
A mask for artificial ventilation and cardiopulmonary resuscitation is disclosed and claimed. The mask comprises a compartment which contains a material that alters the composition of the gas which...
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5678536 |
Liquid air mixing system
A device for mixing liquid nitrogen and liquid oxygen to form liquid air. The mixing device consists of a tube for transferring liquid oxygen positioned within a tube for transferring liquid...
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5653226 |
Device for generating oxygen
A device for generating oxygen by the thermal decomposition of a chemical contained in a cartridge housing, whose reaction takes place, beginning from an activation point, along a reaction front...
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5613488 |
Chemical oxygen generator breathing device with the exhalation bag within the inhalation bag
A chemical oxygen device having one or more CO 2 -bonding and O 2 -releasing chemical canisters (2) arranged in a housing (1); a breathing bag (3) for the exhaled air, which itself is arranged in...
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5535736 |
Inflatable mouthpiece
An inflatable mouthpiece includes an outer cover, an air bladder, a filter, a turnable cover and a liquid container. The air bladder is disposed in a space defined between the outer cover and the...
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5495847 |
Survival hood
A survival hood including a hood for the head and neck, which has an inside pocket with at least one upward open space, and a gas generator put in the pocket inside the hood to release oxygen...
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5479919 |
Device for putting into operation an oxygen-releasing cartridge in a respirator
A device for actuating an ignition mechanism of an oxygen-releasing mechanism in a respirator, with a striker spring fastened in a mounting support and with a striking hammer, which is located at...
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5376352 |
Oxygen storage and retrieval system
A method and apparatus for storing and retrieving oxygen are provided on a steady flow basis. The temperature of a storage vessel containing lithium perchlorate (LiClO 4 ) in the solid state is...
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5301665 |
Respirator for emergency oxygen supply for passengers in aircraft
A respirator for emergency oxygen supply for passengers in aircraft, with a mounting container (1), which can be closed with a lid (2), is fastened above the row of seats, and accommodates at least...
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5267558 |
Chemical cartridge for respirators
A chemical cartridge for respirators for respirators, the cartridge containing a chemical, e.g., potassium hyperoxide, which when acted upon by carbon dioxide and moisture, produces oxygen from a...
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5222479 |
Oxygen self-rescuer apparatus
A self-contained portable personal breathing apparatus that has a casing housing a canister containing an oxygen evolving chemical. The casing is disposed inside a cover which is disposed inside a...
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5203325 |
Self contained apparatus for indefinite respiration in non-air environments
A self contained apparatus for indefinite respiration in non-air environments is provided and consists of a vest pack having a front section, a pair of flexible shoulder bars and a back section...
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5199423 |
Oxygen-rich gas breathing systems for passenger carrying aircraft
A system and apparatus are disclosed for providing oxygen-rich gas for breathing by aircrew and passengers of commercial passenger aircraft. Oxygen-rich gas output by molecular sieve concentrator...
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5194224 |
Moisture indicator for a respiratory protection device
A moisture indicator for indicating the state of moisture loading of an oxygen-releasing chemical in a respiratory protection device which contains the peroxide of an alkali metal as the substance...
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5113854 |
Quick-donning protective hood assembly
A quick-donning protective hood assembly for respiratory protection from smoke and noxious gases. The assembly consists of a clear "TEFLON" film hood (12) having a scrubber canister (20) and an...
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5048517 |
Recirculating positive-pressure respirator
A respirator for recirculating breathing gases, comprises an expiration bag in which an internal tension spring is provided for compressing the bag, and an inspiration bag which can be connected to...
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5042471 |
Respirator with several regeneration cartridges and breather bags
A respirator with regeneration of the respired air by several chemical fillings, which emit oxygen and bind carbon dioxide and are disposed in parallel in the respiratory passage between a...
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5038768 |
Carbon monoxide conversion device
Means for removing contaminants from an air stream are disclosed that at the same time provides a cost effective apparatus for training firefighters. HOPCALITE is used to remove carbon monoxide...
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5038767 |
Device for treating respiration gas with an oxygen-releasing chemical cartridge
A device for processing respiration gas with a filling of an oxygen-releasing chemical in a cartridge that can be received in a housing to which the respiration gas connection can be connected. The...
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5036841 |
Self contained closed circuit breathing apparatus
A closed circuit breathing apparatus for supplying breathable air to a facepiece to be worn by a user while working in an irrespirable atmosphere is disclosed. The apparatus includes an inhalation...
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5029578 |
Oxygen breathing apparatus simulator
A breathing bag apparatus and simulator is disclosed that has a circuitous and continuous tube within its bag(s) communicating outside air from an inlet filter and carbon-dioxide-conversion...
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4993462 |
Fluid flow control arrangement
A control assembly is described for controlling the flow of gas from a gas generating unit into a gas bottle to be charged. The bottle cannot be charged until a latch has been pushed clear by means...
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