Matches 1 - 26 out of 26


Match Document Document Title
8631794 Gas mask  
A gas mask is provided for normal-pressure and overpressure operation with at least one breathing port, an expiration valve with a valve spring, an adjusting element affecting the prestress of the...
8196581 Mouthpiece supply valve  
A mouthpiece supply valve which may be used in connection with a rebreather. An exemplary mouthpiece supply valve may include a housing, an inlet mushroom valve, an outlet mushroom valve, a supply...
7946290 Underwater exhaust system and method  
An underwater exhaust system and method which includes an exhaust valve having a sealing edge, an exhaust outlet for exiting an exhaust gas, and a projection for directing water flow away from the...
7708016 Gas conserving regulator  
A gas regulator includes a delivery valve assembly having a delivery outlet and a delivery valve member engageable with the delivery outlet for controlling flow of a gas from a gas source. A...
7628152 Breathing regulator with nonlinear positive pressure spring  
A breathing regulator having a non-linear positive pressure spring is provided for use in an air supplied respirator. The regulator includes a housing formed from a regulator body and a cover...
7617825 Closure device of a second-stage regulator for scuba divers  
A closure device of a second-stage regulator for scuba divers, the regulator comprising a regulator body with an inlet conduit for connection to a first-stage regulator which supplies a breathable...
7343918 Breathing gas feed assembly for aircraft flight crew, and a stowage box for an emergency breathing mask  
A breathing gas feed assembly for the flight crew of an airplane comprises an emergency breathing mask and a stowage box for the mask. The box is adapted to receive the mask diagonally and it is...
7082944 Changeover valve and dual air supply breathing apparatus  
A dual air supply breathing apparatus that allows a user to quickly and easily switch between two or more sources of air or compressed gas, such as filtered air from a Powered Air Purifying...
6571796 Tracheal pressure ventilation respiratory system  
Embodiments of the present invention described and shown in the specification and drawings include a respiratory system for automatically and variably controlling the supply of a pressurized...
6279575 Regulator with bypass tube  
A regulator includes a box-like body containing a device for regulating the flow of air. A tube connected to the box-like body carries a mouthpiece. An air inlet hose is connected to the box-like...
5996580 Personal emergency breathing system with locator for supplied air respirators and shock resistant filter mounting  
An air filtration unit is carried within a closed canister whereby upon removal of the cover, ambient air may be filtered through the filtration unit and supplied to a user. In one form, the...
5755222 Fastening device for the mouthpiece of scuba-diving apparatus  
An improved fastening device for clamping an outlet of a second stage regulator on a scuba-diving apparatus to a mouthpiece to permit rapid manual disengagement without the use of tools. The...
5701890 Regulator provided with a movable deflector  
A regulator for an underwater breathing apparatus includes a box-shaped body enclosing the air flow-regulating device, a tube connected to the box-shaped body supporting a mouthpiece, an air inlet...
5678542 Decompression gas switching manifold  
A decompression gas switching manifold for technical diving with full face mask includes separate manifold blocks (for travel/bottom and decompression gases) which can be connected or isolated by...
5640952 Personal emergency breathing system for supplied air respirators  
The personal emergency breathing system includes a canister with a filtration unit for supplying filtered ambient air to a gas mask. The mask includes a fitting from which a regulator and hose...
5499624 Breathing mask with face-contact actuated overpressure generating switch  
A breathing mask (1) with overpressure in the mask interior space (26) with a demand oxygen system (8) at a connection piece (32) of the breathing mask, with a switching member (11) at the demand...
5485834 Manually tunable, closed-circuit underwater breathing apparatus  
This invention is a manually tunable underwater breathing apparatus (UBA) which the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the...
5474062 Medical ventilator  
A medical ventilator having a valve which controls the flow of gas from a pressurized gas source to a patient for inhalation. Flow through the valve is choked and pressure upstream of the valve is...
5261424 Control device for flavor-generating article  
A control device for electrically heated flavor generators. Sensors detect user lip activity associated with taking a draw and trigger heating of flavor-generating materials.
4683881 Breathing regulator mouthpiece  
The disclosure sets forth a breathing gas second stage regulator having a tilt valve for introducing breathing gas into a breathing box through means of a diaphragm flexing into the interior...
3351057 Patient safeguarding anesthesia apparatus  
3083707 Device for treatment of pulmonary diseases  
3077191 Anesthetizing and resuscitating apparatus  
3057346 Apparatus for selectively providing controlled breathing or assisted breathing  
2882895 Open-cycle breathing apparatus  
2870763 Pressure breathing therapy apparatus  

Matches 1 - 26 out of 26