Matches 1 - 50 out of 118 1 2 3 >
Match Document Document Title
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 the...
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 filtration...
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...
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...
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 interior...
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...
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...
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...
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 in...
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 the...
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 a...
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...
4926398 Pressure compensated communication system  
The present invention provides a pressure compensated communication system having at least one audio transducer, the pressure compensated communication system comprising a fluid tight housing for...
4915099 Moulded speech transmitter  
A speech transmitter for use in gas masks and the like comprises a body member having a central, circular recess in one end thereof and a marginal rim surrounding the recess, a cover member having...
4885796 Communication apparatus for use in hazardous environments  
Included in the communication apparatus are a face mask covering the eyes, the nose, and mouth of the user and which has a frame holding a transparent viewing shield with a peripheral resilient...
4881538 Respirator air guide  
Air inhaled into a respirator encounters an air guide positioned inside the face-piece of the respirator which acts as a baffle for the air. The passage between the two contains elongate ridges...
4869244 Valve-talking device  
A valve-talking device for use in gas masks has two coaxially disposed tubes which are connected together in the front end by a partition that may be a conic expansion of the inner tube. In the...
4813025 Safety alert and locating system  
A system for monitoring the safety and location of individuals includes a portable transceiver worn by each individual and a base control unit for sending interrogation signals to the individual...
4799263 Speaking and hearing system for breathing apparatus  
A speaking and hearing system for respirators, where the apparatus wearer is connected to a respiratory gas supply independent of the ambient air. A suppression, independent of acoustic signals, of...
4756308 Protective breathing mask having a speaking diaphragm for close communication and an electroacoustic transducer system for indirect speech transmission from inside the mask  
A protective breathing mask, in addition to having a speaking diaphragm for close communication is equipped with an electroacoustic transducer system for indirect speech transmission from inside...
4736740 Gas mask with voice communication device  
A face mask carries a voice communication device including a circular housing having voice transmitting openings and an annular seat which receives a flexible film diaphragm. The diaphragm is...
4718415 Breathing mask having a transducer movable parts coupled to a speaking diaphragm for speech transmission  
A breathing mask includes a carrier which has an inhalation passage and an exhalation passage and a passage over which a speaking diaphragm is extended for speech transmission from the interior of...
4595003 Protective mask for airborne toxic substances  
A protective mask includes a one-piece face piece molded of a transparent astomer. A visor in the face piece provides panoramic visibility and is resilient enough to deform under applied force to...
4593689 Endotracheal tube including means for patient communication  
An endotracheal tube for allowing nasally intubated patients to speak comprising an elongated tube adapted for nasal intubation. The tube has an opening adjacent the patient's throat when...
4563758 Underwater communicator  
An underwater communicator device (10) is disclosed which permits acoustic communication with another diver by use of a voice synthesizer (42) cooperating with an acoustic transducer (40). A...
4549541 Helmet system  
A protective helmet system comprises: (a) a protective helmet including a hard outer shell and an impact absorbing liner at the inner side of the shell, the helmet defining a forwardly located...
Matches 1 - 50 out of 118 1 2 3 >