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7334579 |
Low resistance to flow filter
The present invention discloses a seamless pad-type filter which is characterized in that it comprises two co-extensive sides, a top side and a bottom side. The top and bottom sides are made of...
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7306657 |
Oxygen concentrating apparatus
An oxygen concentrating apparatus including an output variable type compressor. Oxygen-concentrated gas may be supplied either continuously or synchronized with inhalation or timing of inhalations....
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7294180 |
Gas generator assembly
A gas generator assembly, which is especially suited to both transportable and on-board oxygen generators, with at least one adsorbent and a buffer tank to store product gas separated from a feed...
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7288223 |
Method and apparatus for producing a respiratory filter
A method and apparatus in which a granular adsorbent, absorbent, chemisorptive, or catalytic material, particularly activated carbon is intermixed with (a) meltable polymer(s), and that the...
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7237550 |
Respirator containing filter cases
A respirator containing filter cases uses cellular elements or positioning boards provided in filter cases to consistently secure a plurality of particle-shape refillable filter materials in place,...
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7234462 |
Speech transmission adaptor for use with a respirator mask
A speech transmission adapter for use with a respirator mask. The respirator mask has an associated clean air source and defines a clean air envelope between the body of the respirator mask and the...
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7213595 |
Multi-stage respirator filter with TIM filter option
A filter canister assembly for a gas mask comprising a primary canister with a first filter medium adapted to remove aerosols, particulate materials and droplets from air and a second filter medium...
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7191778 |
Respiratory mask with an air-impermeable shield
A respiratory mask includes a shield and a mask body. The shield includes an air-impermeable bent sheet that defines a rim-receiving recess. The mask body is detachably connected to the shield and...
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7179322 |
Oxygen and nitrogen enriched atmospheres in aircraft
A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber...
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7178522 |
Agents and N2O detection apparatus
A detector that monitors the presence of halogenated agents and the presence of N2O includes a base to which a filter cannister is removably coupled. The cannister has an input for accepting...
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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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7156903 |
Sound enclosure for portable oxygen concentrators
A portable pressure swing adsorption apparatus and conservation device for medical use, and a sound enclosure for the apparatus having two isolating sections to enclose the apparatus, the enclosure...
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7156099 |
Nostril filtering system
A nostril filtering system is described for providing clean, filtered air for breathing in through the nose. The filtering system includes a soft, pliable filter material held in a flexible frame...
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7152600 |
Biohazard mask suitable for civilians
A biohazard mask for civilian use comprises bidirectional HEPA filtering to protect both personal and public health during an outbreak. Several measures are taken to maximize comfort and...
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7146980 |
Tube for use in an anesthetic system
A tube for use in an anesthetic system has an essentially cylindrical housing. More effective take-up of carbon dioxide is achieved by an absorbent for carbon dioxide that is arranged within the tube.
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7131442 |
Fibrous filtration face mask
A face mask for filtering contaminants from the air. The face mask includes a harness for securing the mask over the nose and mouth of the wearer and a nonwoven fibrous layer attached to the...
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7117868 |
Fibrous filtration face mask having a new unidirectional fluid valve
A filtering face mask that has a mask body and an exhalation valve. The mask body is adapted to fit over the nose and mouth of a wearer. The exhalation valve is attached to the mask body and has a...
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7114498 |
Gas delivery, evacuation and respiratory monitoring system and method
A gas delivery, evacuation and respiratory monitoring system comprises a face mask having an inflow flapper valve and a fresh-gas inflow tube and an exhaust-gas outflow tube and a gas sampling...
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7077136 |
Anaesthetic delivery system
An anesthetic delivery system has a delivery unit containing a carbon dioxide retaining element and a reversible action anesthetic absorber/desorber for releasably retaining therein at least a...
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7069931 |
Method of making a filtering face mask that has an exhalation valve attached thereto
A method for making a filtering face mask that comprises providing a fluid-permeable multi-layered mask body comprising a structural supporting layer and a filtration layer, the multi-layered mask...
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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...
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7063087 |
Filtering system for the protection against biological agents
The invention refers to a filtering system composed by a face mask and a filter against biological agents, joined together by a new connector. The connector joins the filter to the mask in an easy,...
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7044127 |
Multipurpose mask
A protective, multipurpose mask covers the oral and nasal areas. The mask has an opening about or around the mouth area of the wearer which allows different devices to be inserted and withdrawn...
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7032592 |
Gas dosing device
A device for the dosing of a dry additive gas into a breathing gas in a ventilator system, the ventilator system including a tubing system connectable by at a distal end to a patient, and has a...
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7011092 |
Portable hypoxic apparatus
Hypoxic delivery apparatus producing from ambient air a product gas having a lower levels of oxygen concentration and delivering the product gas to a user of the apparatus in pulse doses....
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7007695 |
Manner of attaching component elements to filtration material such as may be utilized in respiratory masks
A component is attached to filtration material by providing the component with a deformable extension member that is preferably integral with the component and that extends from a base portion of...
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7004167 |
Facemask having an aromatic capsule
A facemask having an aromatic capsule has a mask body having an inner cover layer and an outer cover layer, at least one press-to-crack aromatic capsule held fixed within the inner cover layer and...
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7004165 |
Nose filter
A filtering apparatus fits adjacent to the nostrils and nose of the user and includes a rigid base for retaining a filtering material thereon through which the user may breathe. The filter material...
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6997179 |
Protective hood
A neck seal for use in an emergency breathing apparatus has an interior and an exterior and is formed of an annular sheet of elastomeric material having a substantially central aperture for donning...
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6988500 |
Fog free medical face mask
A face mask having a mask body made of a shaped first material with an opening and a reduced resistance filter material placed within the opening. The reduced resistance filter material permitting...
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6971387 |
Personal air purifier
A personal air purifier employs tapered reticulated foam semi-cylinders sized to be closely received within a user's nostrils through slight expansion of the nostril. The semi-cylinders include a...
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6971386 |
Personal respirator
A respiratory protection air-purifying device that minimizes the area required in front of the face, especially around the mouth area, by locating the heavier filter cartridge behind the head,...
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6962156 |
Enhanced personal air purifier
A personal air purifier employs tapered reticulated foam semi-cylinders sized to be closely received within a user's nostrils through slight expansion of the nostril. The semi-cylinders include a...
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6948499 |
Easy gripping face mask
A cup-shaped face mask sized to fit over the nose and mouth of a wearer is disclosed. The face mask includes an inside surface, an outside surface, and a tab disposed on and extending outwardly...
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6923182 |
Crush resistant filtering face mask
A filtering face mask that includes a mask body that is adapted to fit over the nose and mouth of a person and a harness that is attached to the mask body. The mask body comprises i) a first...
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6901930 |
Wearable electro-ionic protector against inhaled pathogens
A device for removing airborne contaminants and inhaled biopathogens, particularly particulate or aerosol contaminants, from respired air that can be either stationary or incorporated into a...
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6874499 |
Filter element that has a thermo-formed housing around filter material
A filter cartridge ( 5 ), suitable for attachment to a respiratory mask, has a housing that includes an air inlet ( 27 ), an air outlet ( 39 ), and filter material ( 17, 19 ) through which air to...
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6863067 |
Device for exchange of gas volume
A device for exchanging gas volumes in an anesthetic system has an inlet, an outlet, a first chamber arranged between the inlet and the outlet, a second chamber arranged between the inlet and the...
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6858551 |
Ferroelectric fibers and applications therefor
A fiber which includes a thermoplastic polymer and particles of a ferroelectric material dispersed therein. The thermoplastic polymer may be, for example, a polyolefin, such as polypropylene or...
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6854464 |
Respiration protecting apparatus
A respiratory protection apparatus has a face body, and a right side and a left side of a vertical centerline of the body are respectively provided with filtering devices each of which houses an...
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6834646 |
Respiratory hood
A positive-pressure respirator hood assembly comprising, a gas-impermeable hood made of a flexible material, formed with at least a transparent visor portion; a gas treatment unit, comprising a...
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6823868 |
Travel mask
A travel mask that fits over the nose and mouth area of a wearer's face for filtration of air, particularly recycled air in the travel compartment of a common carrier, the travel mask having a face...
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6820619 |
Altitude adjustment method and apparatus
A portable method and apparatus for allowing an individual to pre-adjust at sea level for future high altitudes is taught. The invention teaches the use of a small portable breathing gas control...
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6805124 |
Face mask that has a filtered exhalation valve
A filtering face mask that covers at least the nose and mouth of a wearer and that includes an exhalation valve. The exhalation valve opens in response to increased pressure when the wearer exhales...
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6805123 |
Compact multipurpose dustproof mask
A compact multipurpose dustproof mask includes a body pipe having an outlet hole formed at one end and a mouth contact hole formed at the other end thereof, and the end where the mouth contact hole...
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6802315 |
Vapor deposition treated electret filter media
A vapor phase treated electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of...
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6799573 |
Air filtration system
An air filtration system includes a light weight container which stores a quantity of water for filtering contaminants from inhaled air. A coupling assembly is used to connect the container to a...
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6796307 |
Multiple person high altitude recycling breathing apparatus
A life support system has a semi-closed rebreather supplying oxygen for multiple users, such as high altitude parachutists. A first tank supplies oxygen to initially purge the system, and a second,...
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6783573 |
Gas sampling system
The present invention is directed to a gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitoring device. A gas sampling...
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6780226 |
Charge stabilized electret filter media
An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration...
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