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Match Document Document Title
9010321 Bacteria filter and heating system  
A system for keeping moisture in a vapor phase and for removing particles from a gas is described. The system includes a filter and a heating chamber. The filter is capable of being heated and...
9011584 End of service life indicator for respirator  
A device includes a cartridge containing a filter material. An insert extends through at least a portion of the filter material. The insert has gas sample path with an opening to provide a sample...
8939146 Protective helmet for air extraction from snow  
An apparatus and system are disclosed to extract breathable air from snow via a protective helmet. The apparatus includes a protective structure, at least one air intake cavity, and a mouthpiece....
8905018 Breathing apparatus  
Breathing apparatus comprising a face piece for covering the whole face of a user and a fan unit for operating synchronously with the breath timing of the user. The breathing apparatus comprises a...
8899227 Air filtration device having subsections lacking fluid communication  
A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first...
8900338 Accessory cap for a respiratory filter cartridge  
An accessory cap for a respiratory cartridge includes a housing having a front wall and a side wall which cooperate to define an interior cavity. The side wall includes a retaining formation...
8887719 Air filtration device having tuned air distribution system  
A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is...
8707472 Protective hood having a shielded elastomeric gasket/seal for sealing engagement with the face piece/mask of a self-contained breathing apparatus or respirator  
A protective hood (18) of a protective garment (16) is provided for use with a face piece or mask (12) worn by a user. The hood (18) includes an outer shell (30) having a peripheral edge (20), and...
8667959 Modular powered air purifying respirator  
A modular powered air purifying respirator (PAPR) which is comprised of a fan, motor, scroll, and power source mounted within one housing, and which accepts either traditional or conformal...
8667960 Radial blower with shaped scroll profile  
A powered air purifying respirator (PAPR) includes a radial blower. The radial blower includes at least an impeller and a scroll having an upper outer surface and a lower outer surface. In one...
8636004 CO2 measurement in high relative humidity environments  
A CO2 measuring device for use in a high humidity environment typically found in re-breathing apparatus, especially underwater re-breathing apparatus, that allows commonly available CO2 gas...
8616205 Respirator with end-of-service-life detection  
The present disclosure relates to methods and apparatus for detecting when respiratory cartridges of a respirator have reached their end-of-service-life. In some instances, two or more respiratory...
8607784 Integrated belt and plenum powered air purifying respirator  
A powered air purifying respirator (PAPR) assembly and kit therefore has an elongated hollow belt body having open first and second ends and multiple inlet openings along its length for mounting...
8567403 Biochemical agent filter using ultraviolet irradiation on nanoparticle-embedded ionic grids  
A system includes an ultraviolet light source, such as light-emitting diodes, disposed between a first ionic grid and a second ionic grid. The first and the second ionic grids have opposite ionic...
8544469 Low profile filter respirator  
A respiratory protective device in which a face piece (11) is located within the volume of a filter canister (10). The filter canister (10) can be in the form of a hollow section or sections which...
8522785 Inextensible headgear and CPAP or ventilator mask assembly with the same  
A headgear (200) for a respiratory mask (202) of a ventilator or CPAP device is provided. The headgear includes a strap portion (204, 206) formed of a substantially inextensible material. The...
8479727 Enhanced chemical/biological respiratory protection system  
The invention utilizes a chemical/biological hood with a filter-blower system that is attached to the chemical/biological hood. The filter-blower system provides overpressure to the hood only. The...
8402966 Air purifying respirator having inhalation and exhalation ducts to reduce rate of pathogen transmission  
A filter mask includes an oronasal cup, an inhalation directional cover, and an exhalation diverter body. The oronasal cup encloses a nose and mouth of a user. The oronasal cup is fluidly coupled...
8397715 Chemical and biological protection mask  
A chemical and biological protection mask that combines a filter cartridge with a miniaturized high-intensity shortwave UV disinfecting system in a compact easy-to-wear and fully portable form...
8336543 Filter cartridge having cover for masking service life indicator  
A filter cartridge 12 that includes a sorbent filter material 42, an end-of-service-life (ESLI) indicator 40, a housing, and a housing cover 24. The housing 22 has a sidewall 26 that has a window...
8316850 Breathing apparatus with sensor  
A self-contained breathing apparatus or a respirator can be equipped with a sensor of ambient airborne conditions. A display unit can be carried by a face mask for the apparatus or respirator....
8316844 Protective hood  
The invention relates to life-saving engineering. The inventive protective hood is embodied in the form of a bag comprising a sorbing-filtering insert, a sorbent container, an exhalation valve, a...
8312876 Respirator  
Described is a respirator (1) comprising a mask body (2) which can be used in a universal and constructionally simple way. To this end a first holder (4) is provided for a first filter material...
8302599 Protective headgear system with filter protector  
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. The...
8292991 Gas mask filter canister  
A filter for a gas mask has a concave outlet wall and a convex inlet wall with a particulate filter bed that has a uniform depth and conforms substantially to the shape of the inlet and outlet...
8262782 Respirator filter canister  
A gas mask filter canister of varying shapes is filled by orienting the a fill opening to face upwardly, introducing into the fill opening a particulate filter material, and vibrating the filter...
8245707 Anti-fog breathing apparatus for the elimination of breath vapor condensation on the surfaces of protective eye lenses associated with recreational equipment  
A breathing apparatus used in conjunction with eye glasses, goggles, face masks or helmets each containing eye protection elements to restrict/eliminate the presence of breath vapor condensing on...
8225782 Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI)  
A filter cartridge 12 that includes a filter material 42, an end-of-service-life-indicator (ESLI) 40, a housing 22, a cover 24, and a window 38. The filter material 42 has first and second major...
8196582 Backpack for air extraction from snow  
An apparatus and system are disclosed to extract breathable air from snow via an air extraction backpack. The apparatus includes an air-permeable extraction assembly that is attached to a...
8166972 Antiseptic mask and method of using antiseptic mask  
The invention is an antiseptic mask, comprising a canister configured to store an antiseptic agent, one or more filters adapted to receive the antiseptic agent and a housing comprising a...
8118025 Blow filter device  
A blow filter device for breathing masks and hoods, comprising a blower which is driven by a motor and at least one filter which is arranged upstream from the blower, in addition to an electronic...
8113198 Self-contained breathing system  
A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source...
8025053 Pressure regulator assembly  
A pressure demand regulator assembly for use with a breathing apparatus having a valve assembly that includes an inlet for connection to a source of breathing gas, an outlet for connection to a...
8020553 Ambulatory oxygen concentrator containing a three phase vacuum separation system  
An oxygen concentrator comprises an oxygen reservoir and adsorbent columns that each have an inlet, an outlet, and a bed of adsorbent material. The concentrator also comprises an air inlet, an...
7997275 Cough catcher with protection against germ transmission by hand contact  
In order to prevent tainting of a cougher's hand with germs, the product from a cough is carried in contact with a germicide inside a hollow article, and is vented out of the hollow article, in...
7954490 Method of providing ambulatory oxygen  
Concentrated oxygen product gas is produced and delivered to a patient. Product gas is produced by (a) introducing ambient air into a first end of a column containing an adsorbent material that...
7934497 Modular helmet-mask assembly  
A modular helmet-mask assembly for protecting a user's head and face from hazards such as from chemical and biological warfare agents. The invention includes an impact resistant helmet; a face...
7823586 Personal respiratory protection system  
A respiratory protection system which is worn by a passenger during a flight in air plane, by a patient visiting hospital or doctors office, a nurse working with a patient during hospital stay, or...
7814904 Protective hood structural attachment system  
The present invention is a flexible respiratory protective hood having interior and exterior surfaces. Multiple apertures are die-cut in the hood in a predetermined geometric configuration. A...
7810492 Respirator  
A respirator helmet (10′) or other helmet adapted to receive, by means of a plug (66) and socket arrangement (70), a pivotable bar (62) carrying a protective screen (63) such that the screen may...
7748380 Combined air-supplying/air-purifying system  
A combined air-supplying/air-purifying breathing system that includes a self-contained breathing apparatus, a facepiece for delivering breathable air from the self-contained breathing apparatus to...
7721732 Respiratory heat exchanger  
A heat exchange module comprising a number of substantially parallel and spaced apart heat exchange elements is provided. One or more surfaces of the heat exchange elements may be coated with a...
7681573 Compressed air respirator  
A compressed air respirator with prolonged operating time due to rebreathing. The compressed air reservoir includes a compressed air reserve with a connected demand air supply valve, a reversible...
7658190 Portable air-purifying system utilizing enclosed filters  
A powered air-purifying respirator that includes an enclosure, defining a single contiguous enclosed interior, an inlet duct, including an inlet and a distribution portion, that guides ambient air...
7654260 Protective helmet for air extraction from snow  
An apparatus and system are disclosed to extract breathable air from snow via a protective helmet. The apparatus includes a protective structure, at least one air intake cavity, and a mouthpiece....
7584751 Adapter for protective mask testing apparatus  
An adapter for testing an outlet valve of a protective mask with a testing apparatus includes portions which oppose the valve and are configured to connect the valve to the tester in sufficient...
7559323 Disposable mask assembly with exhaust filter  
A face mask assembly and method of assembling a face mask is provided for a patient that includes a face piece sized to fit over the patient's nose and mouth. The face mask assembly forms a mask...
7523750 Breathing respirator  
The combination noise suppression and breathing respirator of the present invention includes a face mask of the snorkel or diving type, the facemask sealing against the face of the user around the...
7520280 Rebreather apparatus  
A rebreather apparatus having a gas scrubber canister with a generally oval or elliptical cross section. The canister being configured so that exhaled gases pass through the adsorbent in a radial...
7506646 Silencer for airline-hood and protective hood having the same  
Disclosed herein are a silencer for an airline hood and a protective hood having the silencer. The present invention reduces the speed of air fed into a space between upper and lower units, using...

Matches 1 - 50 out of 284 1 2 3 4 5 6 >