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Match Document Document Title
8905034 Ergonomic protective air filtration devices and methods for manufacturing the same  
Ergonomic protective air filtration devices and methods for manufacturing the same are disclosed herein. An ergonomic protective air filtration device includes a stack of at least two layers of an...
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...
8443805 Headgear assembly for a respiratory mask assembly  
A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side...
8434493 Adjustable mouth shield device  
The adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. The adjustable headband is fastened to the padded earpiece. The straight...
8245706 Pressure activated remote microphone  
A pressure activated remote microphone is provided within a communication system (100). A face mask (102) incorporates a remote microphone (118) and one or more pressure sensor(s) (122). When a...
8166968 Scupper valve snorkel  
A conjoined tube within a tube located inside a lower section of a snorkel designed to steer water droplets away from the snorkel diver's breathing path. The lower section of the snorkel has two...
8042543 Headgear assembly for a respiratory mask assembly  
A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side...
8028700 Full face flexible oxygen mask for use with flight helmets  
The full face flexible oxygen mask for use with flight helmets includes an elastic face seal with an oronasal cone that seals around the nose and mouth of the wearer, and flexible sealing flaps...
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...
7814903 Integrated control circuit for an oxygen mask  
A safety device integrated into a respiratory system that includes an oxygen mask having a cup-shaped rigid portion overlying a face mating portion to define a respiratory envelope that is adapted...
7793657 Facemask snorkel  
A facemask snorkel is disclosed. An illustrative embodiment of the facemask snorkel includes a facemask having a facemask interior, a snorkel disposed in pneumatic communication with the facemask...
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...
7493899 Microphone adaptor for a respirator  
A microphone adaptor for a respirator is provided which has a sound tube that extends between a speech projector of the respirator and a microphone enabling clear speech to be received by the...
7394905 Voice amplifier for mask  
A voice amplifier for attachment to a mask has a sound reflector that faces outwardly of the mask when the voice amplifier is attached to the mask. A speaker faces inwards towards the sound...
7302072 Electronic device mount for mask  
An adapter assembly for releasably supporting lapel mic on a mask includes a mask adapter for mounting on the mask, and a lapel adapter for mounting on the lapel mic. The lapel adapter is...
7296568 Respirator module with speech transmission and exhalation valve  
A respirator speech transmitter and exhalation valve module comprising a resilient exhalation valve having a low airflow resistance for exhalation but providing a secure seal against inadvertent...
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...
6997178 Oxygen inhaler mask with sound pickup device  
Oxygen breathing masks with a sound pickup device. A microphone capsule of the sound pick-up device is positioned at the base of a mouth-piece whose aperture is placed just before the mask user's...
6973677 Air filtration system including a helmet assembly  
An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air...
6340024 Protective hood and oral/nasal mask  
An improved oral/nasal mask-hood is provided for protection of individuals in the event of fire or smoke exposure. When attached to a supplemental supply of oxygen the mask-hood also provides...
6332464 Scuba diving regulator  
A scuba diving regulator includes a casing, a mouth piece, an air valve unit, an audio unit, a nozzle unit, an air charge unit and an air discharge unit. The casing has an alarm connector, a...
6305370 Voice transmitter for a breathing protective mask  
The invention is directed to a voice transmitter for a breathing protective mask. The voice transmitter includes a membrane housing (2) and a clamping ring (3) which can be connected to the...
6253763 Mouthpiece and speaker assemblies for underwater speech  
Mouthpiece and speaker assemblies for underwater speech using SCUBA and snorkel equipment, which mouthpiece is characterized by a molded rubber or plastic mouthpiece having a regulator or snorkel...
6188773 Waterproof type microphone  
In order to equalize the pressure between the interior of an unit accommodating chamber and the outside of a mike casing without reducing a waterproof performance and an acoustic characteristic,...
6121881 Protective mask communication devices and systems for use in hazardous environments  
Protective mask communication systems are provided for use in hazardous environments, e.g., firefighting and hazardous waste clean-up operations. The systems allow wearers of protective masks...
6016802 Breathing apparatus and facepiece therefor  
A breathing apparatus comprises a supply of breathable gas and a facepiece by which breathable gas is supplied to a wearer, the facepiece including a supply valve for delivering gas to the...
6018585 Waterproof microphone  
A waterproof microphone according to the present invention includes a case; an acoustic terminal unit having a front acoustic terminal and a rear acoustic terminal to be accommodated in the case...
5969429 Breathing apparatus having electrical power supply arrangement with turbine-generator assembly  
An electrical power supply arrangement incorporates a turbine-generator ambly providing a self-contained non-battery electrical power source for supplying power to a breathing apparatus. The...
5839432 Face-covering hood with inner liner and vent space  
Cold weather, especially when combined with wind and moisture, can cause significant health problems. In practice it will limit productivity and a normal human's activity. The bad effects will be...
5829431 Microphone attenuation device for use in oxygen breathing masks  
A microphone signal attenuating breathing mask body having a gas port for inhalation of a gas to the wearer in a flow stream therethrough. A demand microphone is mounted to the mask and is coupled...
5771886 Inflatable head harness with hearing device placement  
A respiratory protection apparatus has a breathing mask with a regulator and a fast donning harness having at least a pair of extensible strap whose ends are connected to the mask. Each strap has...
5697363 Inhalation and monitoring mask with headset  
An inhalation/monitoring device is disclosed which has a headpiece adapted to fit a user which include an arcuate support member and ear members which can include a loudspeaker. A face piece is...
5572990 Respiratory mask and microphone mount for use therein  
A respiratory mask with an inner mask for covering the mouth and nose. The inner mask includes an inhalation valve, an exhalation valve and a voice aperture. A microphone mount is removably...
5574794 Microphone assembly for adhesive attachment to a vibratory surface  
A microphone assembly suitable for use with a face mask has a cylindrical housing with an inwardly extending recess at its front end covered by a first diaphragm. A microphone unit carried by the...
5421326 Heat resistant suit with active cooling system  
A heat resistant suit includes an inner garment designed to circulate cooling air against the wearer's body. The inner garment is connected to the cool air output of a vortex carried in a pocket...
5385141 Speech diaphragm and exhalation valve  
A combined speech diaphragm and exhalation valve for a respirator is formed as a unitary sub-assembly whereby the speech diaphragm is movable in unison with the exhalation valve.
5307793 Microphone signal attenuating apparatus for oxygen masks  
The microphone of a breathing mask such as an aircraft flight crew oxygen mask is disabled during inhalation to prevent transmission of air flow sounds. In the preferred embodiments, selected...
5277179 Diver's microphone mask  
A microphone mask to be worn in front of the mouth of an underwater diver has a microphone assembly and a teethpiece assembly mounted in a rubber waterproof enclosure. The enclosure has an air...
5224474 Retrofitting gas mask voice amplifier unit with easily actuated switch means  
An electrical amplifier unit which removably attaches to a gas mask and includes a separate microphone for detecting voice sounds emitted by the wearer of the gas mask, circuitry for amplifying...
5185725 Diver locator system  
An underwater location system (16) is disclosed having a plurality of locator modules (18), each capable of finding the relative range and bearing of other modules. The modules may be diver...
5159641 Microphone circuit control mechanism for breathing apparatus  
A microphone circuit control mechanism which is utilized to control the output of a microphone (20) disposed in a breathing mask (12) the microphone circuit extending to a communications device...
5136555 Integrated diver face mask and ultrasound underwater voice communication apparatus  
A novel totally integrated divers face mask and ultrasound underwater voice communication apparatus having integral transducer-transmit-receive-power source enclosures of low profile, flexible...
5080092 Protective mask  
The protective mask (1) comprises essentially a face-shield (2) covering the user's face, made by rigid, resilient and transparent material and rimmed by a bellows seal; the belts (4), the...
5060308 Firefighters mask communication system  
A communication system for attachment to a standard type of firefighter's face mask. Generally speaking, the communication system is mounted on opposite sides of the glass/plastic lens portion...
4999606 Dive parameter indicating assembly  
A dive parameter transmitter/receiver assembly for scuba diving includes a transmitter circuit with a control unit with one or more sensors for detecting dive parameters and/or information to be...
H000883 Protective mask  
A protective mask is provided, which contains the eyes, nose and mouth, crising a protruding lens so as to provide increased peripheral vision and preferably a nose cup which is shaped to provide...
4980926 Voice communication unit  
A voice communication unit is mounted with respect to a full face mask to allow the wearer of the mask to communicate with others. An optical transmitter positioned inside the mask responds to the...
4961420 Gas mask for operation in contaminated areas  
A gas mask is provided which includes a facepiece including a front portion of semi-rigid rubber highly resistant to chemical agents and a sealing skirting of soft rubber having a high mechanical...
4958633 Valve for respirator  
A valve for a respirator has an elastomeric valve member (18) of generally dished form with an annular channel (25) around its central portion (24). The member (18) is secured at its center by a...
4957106 Gas mask coupled to monolithic member with speech membrane  
Gas mask mainly composed of an inlet and outlet part (1) with possibly a speaking membrane (9), fastening devices (2) for securing the inlet and outlet part (1) before the mouth and nose orifices...

Matches 1 - 50 out of 132 1 2 3 >