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7380551 |
Breathing apparatus
An improvement to a combination of an SCBA system for providing bottled air to a user and a PAPR system for purifying ambient air for use by a user wherein a sensor is included to determine the...
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7311764 |
Gas mask filter canister
A filter for a gas mask has an elliptical or circular, convex shape to conform to the curvature of the wearer's face, or a planar shape. The filter comprises a double particulate filter element and...
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7275535 |
Respiration hood useful in biological, radiological and chemical emergencies
A respiration hood assembly is effected from a thin-walled headpiece nested within the periphery of a mating exterior housing that includes a filtered aperture. The nested engagement between the...
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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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7228858 |
Protective garment
A protective garment incorporates a face and neck mask adapted to filter out airborne particulates. The protective garment outwardly has the appearance of a conventional shirt, sweater or jacket,...
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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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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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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...
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7210476 |
Breathing-speaking valve
The present invention relates to a breathing-speaking valve intended to be used as a speaking valve of patients requiring filtration of inspiration air inhaled via tracheostomas and are mounted on...
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7197774 |
Supplied air helmet having face seal with differentiated permeability
A supplied air helmet 10 comprises a visor 14 and a face seal 12 that is secured to the visor. The face seal 12 includes a sealing member 18 and a frame member 16. The sealing member ...
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7182081 |
Protective breathing hood
A protective breathing hood comprising a hood made of a stretchable fire resistant material and which is also impermeable to gases and biologic material. The hood is sized and shaped for placing...
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RE39493 |
Respirator having snap-fit filter cartridge
A respirator ( 10 ) that includes a face piece ( 14 ) and a cartridge receiving structure ( 22 ) located on the face piece ( 14 ). The face piece ( 14 ) is sized to fit snugly over the nose and...
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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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7128070 |
Biological defense masks
The invention relates to biological defense masks, and more particularly, biological defense masks designed for use by populations at risk of widespread biological attack via biological weapons of...
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7118608 |
Self-powered, wearable personal air purifier
A self-powered, personally wearable air purifier includes a sequence of packed bed filter media packets having filter media therein of specifically targeted types that will absorb those ambient air...
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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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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....
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7051732 |
Respirator mask
The present invention is directed to a respiratory helmet. The helmet is designed to provide protection to a user's cranium area. The helmet also has a visor designed to provide protection to the...
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7051380 |
Safety filtration apparel
Safety apparel and/or non-apparel items that filter from the air one or more airborne particles and/or undesired gases to provide safety to a human and/or non-human from potentially unhealthy...
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7044126 |
Device for providing protection to the respiratory system
A device for providing purified atmospheric air to a user. Air passes passively through a filter and partitions into a mouse-nose compartment and a face compartment. The air from the face...
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7028688 |
Operationally adaptable chemical-biological mask
A chemical-biological protective mask having a weight distribution that imparts a balanced center-of-gravity to the wearer of the mask, and is adaptable for different operational requirements by...
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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...
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7007690 |
Advanced chemical/biological crew mask
An improved crew mask for protection of a user against chemical and biological hazards is provided. The novel crew mask includes the following features: a facepiece that includes a hybrid face seal...
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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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6986348 |
Cough-a-lizer
The germ and noise filter device is a disposable, hand held filter apparatus that covers the mouth of the user during the exhale phase of a cough. The device comprises: a body with a cavity that...
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6983745 |
Isolation suit with two-way air supply/disinfection pump
An isolation suit has a two-way air supply/disinfection pump attached to it. The pump has a pair of through-passages each communicating with an interior of the suit by respective airlines. There is...
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6925655 |
Protective helmet with selectively covered aperture
Protective helmet comprising a two piece shell, an electric motor and impeller useful for creating a positive pressure environment in the head space, and a filter for removing particulates and...
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6918141 |
Protective headgear system
This invention is directed to a protective headgear system which includes a relatively light weight, substantially rigid, headgear structure which may include an internal, adjustable headband. A...
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6907878 |
Protective hood with adjustable visor
A flexible hood has an upper part and a lower part formed integrally with the upper part. A visor is carried by the upper part and a filter is mounted to the lower part on an external side. In a...
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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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6892725 |
Protective hoods and neck seals for use therein
A neck seal for use in a protective hood includes an inner section including a passage for donning. The inner section is fabricated from an elastomeric material to form a seal around a neck of a...
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6886559 |
Multi-phase headset for pilots
A multi-phase headset ( 50 ) for aircraft crew members is provided which includes an inflatable gas mask unit ( 54 ) and a visor unit ( 56 ), supported on the head of a user ( 60 ) by mounting...
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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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6860267 |
Self-sealing filter connection and gas mask filter assembly incorporating the same
A gas mask having a filter canister mount including an inhalation valve and a self-sealing mechanism that prevents air inflow when a filter canister is removed from the canister mount. In one...
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6837239 |
Ventilation system for a protective suit
The present invention relates to a ventilation system for a protective suit for use in hazardous environments. In a further aspect it concerns the protective suit itself. An air purifying...
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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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6826783 |
Chemical/biological helmet
A chemical/biological protection helmet is provided with a filter system. In order to provide for improved balance control and visibility, the filter system is positioned in the rear of the helmet....
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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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6783566 |
Combination filter/cartridge assembly
A filter cartridge assembly including a replendam that combines a particulate filter with an irregular shaped gas sorbent bed. Best operational practice requires that the air passing through the...
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6766537 |
Protective helmet with detachable shell piece
Protective helmet comprising a two piece shell, an electric motor and impeller useful for creating a positive pressure environment in the head space, and a filter for removing particulates and...
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6763835 |
Chemical/biological special operations mask
A respiratory mask assembly for filtering airborne biological and/or chemical agents from air for breathing, comprises an outer hood adapted to seal with and encompass at least the head and neck of...
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6761162 |
Personal disposable emergency breathing system with radial flow
The breathing system includes an annular filtration unit having apertures opening radially through inner and outer walls thereof, a central passageway and filtration material between the walls. The...
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6758212 |
Personal emergency breathing system
The breathing system includes an elastic, non-porous body housed within an outer protective shell. The body terminates at its forward end in a protective cap and an air inlet passage and at its...
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6752146 |
Civilian anti-terrorist attack gas mask
A civilian anti-terrorist attack gas mask used as an emergency measure to remove hazardous air pollutants present in air drawn from an ambient atmosphere to provide a person with suitably...
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6736137 |
Protective hooded respirator with oral-nasal cup breathing interface
The present invention is a protective hooded respirator optimized for both high protection against nuclear, chemical and/or biological agents as well as having a design configuration enabling it to...
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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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6681765 |
Antiviral and antibacterial respirator mask
The invention provides a gas mask comprising a face piece including a transparent eye covering, and including a space to allow air to circulate around the nose and mouth of a wearer, and having an...
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6578572 |
Firefighting hood and face mask assembly
An apparatus having a face mask removably attachable to a firefighting hood is provided. The face mask used in cooperation with a breathing apparatus such as a self-contained breathing assembly or...
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6553989 |
Self-contained breathing apparatus with emergency filtration device
A self-contained breathing apparatus (SCBA) that includes an emergency filtration device for use in the event of an SCBA malfunction or exhaustion is described. The SCBA may include an air supply,...
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6550476 |
Heat-moisture exchanger and nebulization device
A heat-moisture exchanger (HME) and nebulization device for connection to a mechanical ventilator or anesthesia apparatus, to provide humidification or an aerosolized medication without...
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