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| Number | Title | Issue Date |
| 7819117 | Emergency oxygen mask An emergency oxygen mask includes: a respiration part worn on a user's face for supplying oxygen or discharging carbon dioxide or moisture using a pressure difference depending on respiration of the user; a carbon dioxide supply part for supplying the carbon dioxide... | 10/26/2010 |
| 7694674 | Oxygen generator with storage and conservation modes An electronic controller (16) controls the operation of an electrochemical oxygen generating system (14) producing a desired gas. The product gas is fed to a storage unit (12) or a regulator (28) and pulsing valve (28) controlling ... | 04/13/2010 |
| 7604005 | Adsorbent cartridge for oxygen concentrator A removable gas separation cartridge which includes a housing containing three columns, each having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by usin... | 10/20/2009 |
| 7516739 | Apparatus for delivering pressurized fluid A container for enclosing at least one pressure vessel includes interface devices accessible on an exterior of the outer surface of the container. The container can also include various features for enhanced efficiency and convenience in stock piling of such contain... | 04/14/2009 |
| 7513251 | Hand-held potassium super oxide oxygen generating apparatus A hand-held oxygen generating apparatus that includes a container containing potassium super oxide and valves that regulates oxygen and air flow. ... | 04/07/2009 |
| 7431032 | Low power ambulatory oxygen concentrator An oxygen concentrator comprises a vacuum swing adsorption (VSA) gas separation system which includes a cartridge containing a mass of adsorbent material for producing oxygen, a drive which activates the gas separation system, and a power source comprising a mass. A... | 10/07/2008 |
| 7407632 | Apparatus and delivery of medically pure oxygen A lightweight, portable, reusable oxygen generator is provided. The oxygen generator comprises a reaction chamber, a humidifier, and a cap assembly. Once assembled, oxygen of medical purity can be generated in the reaction chamber via a chemical reaction. Then, the ... | 08/05/2008 |
| 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 been widely employed. There have existed a number of preexisting barrier... | 06/03/2008 |
| 7368005 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 05/06/2008 |
| 7347203 | Heat and moisture filter exchanger and method A heat and moisture exchanger for both conducting a stream of air produced by a ventilator to a moisturizing medium and internally bypassing the moisturizing medium if aerosolized medication is introduced into the stream includes a housing having a ventilator-side p... | 03/25/2008 |
| 7341072 | Oxygen supply system having a central flow control unit The present invention is a centralized flow control unit (CFCU) for regulating oxygen flow in a multiple user emergency oxygen distribution system in passenger aircraft. Upon activation, the CFCU initially allows unregulated flow of oxygen to surge into the distribu... | 03/11/2008 |
| 7331342 | Oxygen humidifier 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, a... | 02/19/2008 |
| 7329304 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 02/12/2008 |
| 7285150 | Dehydrating breather apparatus and method A dehydrator breather is provided that includes a vessel, a desiccant container, a valve housing coupled to the vessel, and a vent assembly coupled to the valve housing. The vent assembly includes screened ports disposed along a vertical axis of the vent assembly bo... | 10/23/2007 |
| 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 comprises an inlet means for extracting a quantity of water from the bod... | 10/09/2007 |
| 7255376 | Pressure sensing dead bolt An apparatus, system and method including a latching device for displaceably retaining a panel relative to a frame. The latching device includes at least a bolt which is carried on the latching device and is operatively associated with the panel to prevent disengage... | 08/14/2007 |
| 7255104 | Breathing gas supply system A breathing gas supply system for supplying breathable gas in an aircraft includes an oxygen enriching apparatus which is operable in at least two modes to provide product gas with varying oxygen concentrations. A first feed line feeds more highly enriched product g... | 08/14/2007 |
| 7246620 | System for monitoring pilot and/or passenger oxygen saturation levels and estimating oxygen usage requirements A noninvasive system for monitoring the oxygen saturation level of a person subjected to reduced atmospheric pressure for avoiding hypoxemia. The system monitors a person's oxygen saturation level, comparing the saturation level to a predetermined level. When the me... | 07/24/2007 |
| 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 over the user's head. The sack-like member has an interior containin... | 06/05/2007 |
| 7222624 | Dual sensor oxygen therapy device Methods and apparatus for supplying respiratory oxygen to a patient where the oxygen flow is monitored so as to be control and conserve in response to the patient's pulse rate and blood hemoglobin saturation. ... | 05/29/2007 |
| 7213400 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid gas, such as liquid oxygen, with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, liquid oxy... | 05/08/2007 |
| 7210477 | Respirator hood assembly The present invention provides a respirator hood assembly that has a bag, half mask and a respirator assembly. The assembly includes a filtration unit and at least one inlet pipe containing a filter. The assembly of the invention allows for flexible filter design an... | 05/01/2007 |
| 7204249 | Oxygen conserving device utilizing a radial multi-stage compressor for high-pressure mobile storage An oxygen concentrator is utilized in combination with a compressor, preferably a radial compressor, to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile... | 04/17/2007 |
| 7200873 | Head gear apparatus having improved air flow arrangement A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines ... | 04/10/2007 |
| 7195028 | Self-contained oxygen generator A self-contained oxygen generator containing a PSA unit and a flowmeter in the outlet line. The flowmeter provides a signal which represents the flow rate of the oxygen in the outlet line. A leakage circuit with a calibrated orifice and a solenoid valve are also loc... | 03/27/2007 |
| 7188621 | Portable ventilator system A portable ventilator uses a ROOTS-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that intera... | 03/13/2007 |
| 7174212 | Implantable medical device having a casing providing high-speed telemetry A housing for an implantable medical device comprises a metallic wall including a telemetry window having a thickness that is thinner than the remainder of the housing wall and having an electrical conductivity that is less than that of the remainder of the housing ... | 02/06/2007 |
| 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 reaction when the two chemicals mix. The chemicals are pre-measured, and oxy... | 02/06/2007 |
| 7165546 | 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 liquefied nitrous oxide is converted to a breathable gas mixture of ... | 01/23/2007 |
| 7152599 | Nasal mask for delivering gas A nasal mask for delivering gas to a mammalian nasal passage includes a body portion including an inlet opening and an outlet opening as well as a facial contact portion having an opening in communication with the outlet opening and a shroud positioned over the faci... | 12/26/2006 |
| 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 separator for ambulatory use. ... | 10/17/2006 |
| 7114496 | Filter cartridge with integrated inhalation and exhalation valves The present invention is a filter cartridge with integrated inhalation and exhalation valves. The exhalation valve integrated into the filter cartridge prevents unfiltered air from being inhaled. The inhalation valve(s), also integrated into the filter cartridge, ef... | 10/03/2006 |
| 7101277 | Control system and method for controlling aircraft cabin altitude during aircraft operations above maximum certified aircraft altitude A cabin pressure control system and method extends the cabin pressure control logic beyond the original maximum certified altitude of the aircraft, without having to update the control logic. Thus, the control system provides an independent means of limiting cabin-t... | 09/05/2006 |
| 7093597 | Respiratory equipment Respiratory apparatus including stowage equipment is addressed. The equipment may include a non-rigid bag covering at least part of an oxygen mask. The bag additionally may have an opening through which a portion of the mask protrudes, thereby facilitating its grasp... | 08/22/2006 |
| 7066985 | Portable gas fractionalization system A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at ... | 06/27/2006 |
| 7059323 | Incubator with oxygen metering An incubator for premature and newborn patients is provided with a heater (6), and a fresh air flow (13) fed in with oxygen metering, characterized in that the incubator has an electrically operated oxygen concentrator (12), and an oxygen sensor... | 06/13/2006 |
| 7040319 | Method and apparatus for monitoring oxygen partial pressure in air masks Method and apparatus are disclosed for monitoring an oxygen partial pressure in an air mask and providing a tactile warning to the user. The oxygen partial pressure in the air mask is detected using an electrochemical sensor, the output signal from which is provided... | 05/09/2006 |
| 7028687 | Escape hood An escape hood, comprising a respirator, having an air filter suitable for filtering toxic air contaminants and positioning members to retain the respirator in a respiratory path of the user; an optical lens; a expanding member, permitting hood to expand from a comp... | 04/18/2006 |
| 7013898 | Nasal pressure sensor oxygen therapy device Method and apparatus for supplying respiratory oxygen to a patient where the oxygen flow is monitored so as to control and conserve oxygen in response to the pressure in the nasal passages of the patient. ... | 03/21/2006 |
| 6994086 | Standby regulator for breathing system The demand regulator has a duct communicating a pressurized breathing gas admission with a tube connected to the inside of a breathing mask. Dilution air may be added to the breathing gas. A breathe-out valve opens from the tube to atmosphere. A manual control membe... | 02/07/2006 |
