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IC:(A62B7/00 OR A62B9/00 OR A62B11/00 OR A62B13/00 OR A62B15/00 OR A62B17/00 OR A62B18/00 OR A62B19/00 OR A62B21/00 OR A62B23/00 OR A62B25/00 OR A62B27/00 OR A62B29/00 OR A62B31/00 OR A62B33/00)

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Analysis

1.WO/2020/104815POWERED AIR PERSONAL RESPIRATOR
WO 28.05.2020
Int.Class A62B 9/00
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
9Component parts for respiratory or breathing apparatus
Appl.No PCT/GB2019/053306 Applicant WORLD WIDE WELDING LTD Inventor BOFFEY, John
A powered air personal respirator (10), comprises a housing (26), an oxygen sensor (28) carried by the housing (26), for measuring the content of oxygen in the surrounding atmosphere, and an alarm, wherein the powered air respirator (10) is arranged to trigger the alarm when the content of oxygen falls below a threshold value. The invention also relates to a method of calibrating the powered air respirator (10) by connecting a tubular connector (36) to the sensor (28), blowing air into the tubular adapter (36), obtaining a first reading of oxygen content in exhaled air, and comparing the first reading to oxygen content values expected in the exhaled air to confirm that the device is correctly calibrated.
2.WO/2020/106264INSULATING BREATHER
WO 28.05.2020
Int.Class A62B 7/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
7Respiratory apparatus
02with compressed oxygen or air
Appl.No PCT/UA2019/000144 Applicant DEZEGA HOLDING UKRAINE, LLC Inventor POPOV, Volodymyr Mykolaiovych
The invention relates to the respiratory organs protection technical means that provide human with life support in the atmosphere unsuitable for breathing. Insulating breather with closed breathing mixture circulation loop (self-contained self-rescue, SCSR) is equipped with a cylinder (15) containing pressurized oxygen. The breather has increased effectiveness of the treatment of the exhaled gas mixture and improved quality of the inhaling gas mixture by using the breathing mixture circulation loop of the present invention and using means for simultaneous mechanical pressing on the breath-out bag (4) and the breath-in bag (8) and the additional cooling.
3.WO/2020/100132MODULAR NBC FILTRATION SYSTEM FOR PROTECTION SHELTERS
WO 22.05.2020
Int.Class A62B 13/00
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
13Special devices for ventilating gasproof shelters
Appl.No PCT/IL2019/050376 Applicant BETH-EL ZIKHRON YAAQOV INDUSTRIES LTD. Inventor KOEGER, Samuel
A near ceiling mounted NBC filtration system [10] (Fig.8) for collective protection shelters having an optimized modular structure. The main building blocks comprising: a filter unit [30], a blower [40], a manual air exchange backup unit [20] and a changeover valve [50]. The filter unit [30] is elongated in shape horizontally positioned along a top portion of a wall of the protected space. An inlet port [36] and outlet port [38] of the filter unit are located in proximity to each other near a first extremity of the filter unit. The blower [40] is driven by the electric motor [42] through a second speed increasing transmission enabling rotation of an impeller of the blower at speeds of above 3000rpm. The blower [40] is positioned along the filter unit [30] near a second extremity thereof distal from the inlet port and outlet port; The changeover valve [50] comprises a tubular housing extending along the filter unit near the first extremity thereof, and an internal displaceable tubular valve member. The air exchange backup unit [20] comprising a plurality of hinged segments [22a, b, c] serially linked to each other, forming a foldable arm. A first end [24] of the air exchange backup unit is swiveably attached to the electric motor [42] and a second end [26] of the air exchange backup unit carries a detachable hand crank [28]. Manual rotation of the hand crank [28] rotates the electric motor [42] at substantially a rated speed of the electric motor. The second end [26] of the air exchange backup unit is firmly attachable to a wall of the protection shelter at a convenient position for manual cranking of the hand crank [28]. Each of the building blocks of the NBC filtration system may be replaced with a block of different capacity without effecting the other blocks.
4.20200155876PRESSURE SUPPORT SYSTEM VALVE
US 21.05.2020
Int.Class A62B 9/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
9Component parts for respiratory or breathing apparatus
02Valves
Appl.No 16684629 Applicant KONINKLIJKE PHILIPS N.V. Inventor KARL APPARETI

The present disclosure describes a pressure support therapy device valve that enables a subject to safely supplement therapy pressure support with low flow oxygen while using a heated (or non-heated) tube. The valve conducts a pressurized flow of breathable gas and the low flow oxygen to the heated tube. The valve includes electrical components configured to pass power from the pressure support therapy device to the heated tube, and a plunger biased to close a flow path from the pressure support therapy device when a pressurized flow of breathable gas is not provided (or is below a predetermined pressure threshold). Closing the flow path stops oxygen gas from flowing back through the valve toward the pressurized gas source.

5.20200155877PERSONAL AIR FILTRATION APPARATUS AND METHOD
US 21.05.2020
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 16193242 Applicant Paul Key Inventor Paul Key

A wearable air filtration apparatus configured to fit beneath a full-face helmet is disclosed. The apparatus includes a front plate including an output aperture and at least one input aperture, the input and output apertures arranged to be substantially front facing when the apparatus is worn by a user. An air filter is arranged behind the front plate and positioned to filter air moving from in front of the apparatus toward the face of a user wearing the apparatus. A valve plate is located behind the filter, the valve plate including an output check valve in fluid communication with the output aperture and at least one input check valve in fluid communication with the at least one input aperture.

6.20200155878HALF FACEPIECE
US 21.05.2020
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 16774395 Applicant Scott Technologies, Inc. Inventor Antti SEPPÄLÄ

A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.

7.20200154800ARRANGEMENT APPLIED TO HUMIDIFIER AND PROTECTION MASK
US 21.05.2020
Int.Class A41D 13/11
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
13Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
05protecting only a particular body part
11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
Appl.No 16773013 Applicant Doris Hexsel Inventor Doris Hexsel

In general, this utility model belongs to the technological sector of face masks and more specifically refers to a new arrangement applied to a humidifier and protection mask. The accessory developed is an innovative alternative to the state of the art, proposing practical, versatile and low-cost face masks, disposable or not, capable of humidifying inhaled air in a simple and economical way, without the use of external energy. Accordingly, the mask has a filter for particles, composed of a material that retains fluids and can be replenished simply by the user himself, preferably with water or other fluids, with spaces that allow the entry of air taken in, so that inhaled air containing oxygen only enters into the mask through the humidifier filter. Masks can be disposable or not, and reusable ones are made of washable materials. Due to the fact that the humidifier filter material can be replaceable for reasons of hygiene, it can be removed from the base or body of the mask and replaced for a new one.

8.20200160877METHOD AND SYSTEM FOR PROCESSING AUDIO SIGNALS FOR A MICROPHONE OF AN AIRCRAFT OXYGEN MASK
US 21.05.2020
Int.Class G10L 21/0232
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02Speech enhancement, e.g. noise reduction or echo cancellation
0208Noise filtering
0216characterised by the method used for estimating noise
0232Processing in the frequency domain
Appl.No 16687053 Applicant Airbus Operations SAS Inventor Benoît GAUDUIN

An audio signal processing system for a microphone of an aircraft oxygen mask receives audio signals captured by the oxygen mask microphone. The audio signal processing system comprises: a module for detecting breathing noise within the audio signals comprising a frequency decomposition module and a first classification neural network, a module for detecting voices within the audio signals by virtue of a second classification neural network, and a selective attenuation module supplying audio signals corresponding to the audio signals selectively attenuated in amplitude, no attenuation being applied in the presence of voice signals within the audio signals, and otherwise, an attenuation being applied in the presence of breathing noise within the audio signals. Thus, the intelligibility of the communications involving a pilot wearing the oxygen mask is improved.

9.3653265DEVICE FOR SUPPLYING BREATHING GAS TO A USER
EP 20.05.2020
Int.Class A62B 7/14
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
7Respiratory apparatus
14for high-altitude aircraft
Appl.No 18205830 Applicant AIRBUS OPERATIONS GMBH Inventor BRICARD PATRICK
10.3653266RESPIRATOR MASK
EP 20.05.2020
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 18206186 Applicant JINFUYU IND CO LTD Inventor TU MING LI