| Patents for A62B 18 - Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes (6,940) |
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| 09/05/1991 | WO1991012852A1 Ori-nasal mask |
| 08/29/1991 | DE3546673C2 Plastic foil respirator |
| 08/20/1991 | US5040530 Sprayable composition using acetone solvent |
| 08/20/1991 | US5040528 Autonomous breathing system for underwater diver's headgear |
| 08/13/1991 | US5039035 Helmet assembly with inflatable actuators |
| 08/13/1991 | US5038776 Universal head harness |
| 08/06/1991 | US5036846 Crew oxygen mask with pneumatic comfort adjustment |
| 08/06/1991 | US5036842 Respirator with blower support and regeneration of the breathing filter |
| 07/30/1991 | US5035239 Powered respirators |
| 07/30/1991 | CA1286850C Mask arrangement |
| 07/23/1991 | US5033465 Bonded adsorbent structures and respirators incorporating same |
| 07/23/1991 | US5033128 Goggles |
| 07/03/1991 | EP0327643A4 Protective hood and oral-nasal mask |
| 07/02/1991 | CA1285453C Lung-controlled diaphragm valve |
| 07/02/1991 | CA1285452C Gas mask |
| 06/25/1991 | CA1285101C Gas mask nose occluder |
| 06/19/1991 | EP0432491A2 Viewing window, especially for thermal protection clothing |
| 06/11/1991 | US5023023 Method of forming curved transparent cellulose diacetate visor having silk screened electric heating conductor |
| 06/11/1991 | US5022900 Forced ventilation filtration device |
| 06/04/1991 | US5020533 Face mask with liquid and glare resistant visor |
| 06/04/1991 | US5020193 Connector |
| 05/30/1991 | WO1991007859A1 Voice transmission system |
| 05/28/1991 | US5018520 Aeration or breathing apparatus |
| 05/28/1991 | US5018518 Gas work with sensing and alarm means |
| 05/23/1991 | DE3938581A1 Air supply for gas-mask from protective suit - interior also incorporating aerosol protection |
| 05/02/1991 | WO1991005584A1 Respiratory protection device |
| 04/30/1991 | US5010594 Dampening mask for use in aircraft |
| 04/24/1991 | EP0423977A1 Elastic strap fastener assembly |
| 04/23/1991 | US5009225 Personal ventilating system |
| 04/21/1991 | CA2025515A1 Elastic strap fastener assembly |
| 04/18/1991 | DE4002843C1 Protective breathing mask with filter - having gas sensors in-front and behind with difference in their signals providing signal for change of filter |
| 04/16/1991 | US5007893 Combination anti-g and pressure suit |
| 04/11/1991 | DE4004157C1 Respiratory nose-mouth half mask - has body with peripheral seal bead to define separate compartments |
| 04/04/1991 | DE3931682A1 Protective respirator with air distributor - has collapsible filter to reduce vol of respirator air preparation and distributor chamber, when not used |
| 04/03/1991 | EP0420812A1 Portable breathing protection apparatus |
| 04/02/1991 | US5003974 First-aid gas mask |
| 04/02/1991 | US5003633 Seal device |
| 04/02/1991 | US5003632 Device for connecting a breathing mask to a helmet |
| 03/26/1991 | US5002049 Portable smoke and gas dispeller |
| 03/21/1991 | WO1991003277A1 Respirator for protection against the influence of cold air |
| 03/19/1991 | CA1281501C Half-face mask assembly |
| 03/12/1991 | US4998414 Air conditioning system |
| 03/12/1991 | CA1281253C Powered respirators |
| 03/06/1991 | EP0414956A1 Face mask |
| 03/05/1991 | US4996983 Inhaler filtration device with housing supportable by spectacle temple |
| 03/05/1991 | US4996981 Worn on back of firefighter |
| 03/05/1991 | CA1280851C High efficiency respirator |
| 03/02/1991 | WO1991003279A1 Improvements in or relating to safety helmets |
| 03/02/1991 | CA2065300A1 Safety helmets |
| 02/27/1991 | EP0413861A1 Speech transmitter |
| 02/27/1991 | EP0413775A1 Improvements in and relating to protective hoods |
| 02/21/1991 | WO1990009209A3 Holder for respirator |
| 02/20/1991 | EP0413555A1 Positive pressure breathing apparatus |
| 02/19/1991 | CA1280334C Respirator |
| 02/13/1991 | CN2071071U Safety cool sanitary mask |
| 02/12/1991 | US4991577 Exhalation valve means of a respiration mask |
| 02/07/1991 | WO1991001159A1 Molded nosecup valve assembly |
| 02/05/1991 | USH883 Protective mask |
| 02/05/1991 | US4989598 Negative pressure full face respirator having a replaceable viewing window |
| 02/05/1991 | CA1279803C Accessory for gas masks and gas masks equipped therewith |
| 01/10/1991 | WO1991000120A1 Smoke-proof helmet |
| 01/02/1991 | CN2068402U Compressed air breathing apparatus when in disaster |
| 01/01/1991 | US4981134 Filtering face mask with inhalation/exhalation check valves |
| 12/25/1990 | US4980926 Voice communication unit |
| 12/18/1990 | US4977634 Pillow with poisonous gas removing cover |
| 12/11/1990 | US4975980 Protective helmet for firefighters |
| 12/04/1990 | WO1990014778A1 Improvements in or relating to safety helmets |
| 12/04/1990 | US4974586 Breathing mask |
| 12/04/1990 | CA2056400A1 Safety helmets |
| 11/20/1990 | US4971052 Breathing apparatus |
| 11/20/1990 | US4971048 Dual valve liquid transfer tube |
| 11/13/1990 | US4969457 Low density polyethylene layer; gas flow; aids prevention |
| 11/08/1990 | DE3914664A1 Exhaustion sensor and indicator e.g. for gas mask - gives real-time warning of saturation of absorbent material by measurement of electrical conductivity of coating |
| 10/10/1990 | EP0391726A2 Improved filtration medium and face mask containing the same |
| 10/10/1990 | EP0391725A1 Method for making an electrostatically charged face mask |
| 10/09/1990 | US4961420 Gas mask for operation in contaminated areas |
| 10/07/1990 | CA2014053A1 Electrostatically charged face mask and method for the same |
| 10/07/1990 | CA2014052A1 Filtration medium and face mask containing the same |
| 10/02/1990 | US4960121 Half-face mask assembly |
| 09/26/1990 | CN1045530A Humidification face mask |
| 09/25/1990 | US4958633 Valve for respirator |
| 09/20/1990 | DE3908057A1 Method for regulating the amount of air fed to a gas mask, and gas mask in which this method is used |
| 09/18/1990 | US4957106 Gas mask coupled to monolithic member with speech membrane |
| 09/12/1990 | EP0386605A1 Breathing protection mask |
| 09/11/1990 | US4955373 Air breathing assembly and air filter attachment therein |
| 08/28/1990 | US4951664 Mask and method of manufacture |
| 08/23/1990 | WO1990009209A2 Holder for respirator |
| 08/22/1990 | CN2060678U Portable gas-masks |
| 08/22/1990 | CN2060677U Fire-fighting combined respirator |
| 08/14/1990 | CA2010055A1 Holder for respirator |
| 08/01/1990 | EP0223808B1 Protection hood against smokes and hypoxy |
| 07/31/1990 | US4944294 Face mask with integral anti-glare, anti-fog eye shield |
| 07/17/1990 | US4941468 Regulator for breathing apparatus |
| 07/17/1990 | US4941467 Humidification face mask |
| 07/11/1990 | EP0377316A2 Voice communication unit |
| 07/04/1990 | EP0376099A2 Blower-assisted breath-protecting apparatus using breathing filter regeneration |
| 06/19/1990 | US4934362 Unidirectional fluid valve |
| 06/19/1990 | US4934361 Respirator |
| 06/06/1990 | EP0371858A1 Individual respiratory and contamined environment protective equipment |
| 05/31/1990 | WO1990005565A1 Improvements in and relating to protective hoods |