| 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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| 11/26/1992 | WO1992020395A1 Facial breathing mask |
| 11/26/1992 | CA2109710A1 Facial respiratory mask |
| 11/22/1992 | CA2068925A1 Breathing mask |
| 11/18/1992 | WO1992020405A1 Viewing window protector |
| 11/18/1992 | CA2103020A1 Viewing window protector |
| 11/17/1992 | US5163185 Helmet with interchangeable lenses |
| 11/17/1992 | CA1310248C Breathing apparatus |
| 11/12/1992 | WO1992019322A1 Protective respirator's air guidance system and protective respirator |
| 11/04/1992 | EP0511593A1 Panoramic protection mask for operating interventions in polluted environments |
| 10/29/1992 | WO1992018201A1 Method for controlling an air supply unit for respirators |
| 10/24/1992 | CA2057176A1 Breathing mask construction |
| 10/20/1992 | US5156145 Self-contained breathing system apparatus with automatic back-up |
| 10/20/1992 | US5155863 Removable protective cover for breathing mask |
| 10/13/1992 | US5154168 Respirator mask |
| 10/07/1992 | EP0452486A4 Voice transmission system |
| 09/30/1992 | EP0506256A1 Support assembly for breathing apparatus |
| 09/29/1992 | US5150703 Liquid shield visor for a surgical mask with a bottom notch to reduce glare |
| 09/22/1992 | US5148803 Respirator mask with easy-to-change respirator filter |
| 09/21/1992 | CA2063183A1 Breathing apparatus with convertible case |
| 09/17/1992 | WO1992015369A1 Retrofitting gas mask voice amplifier unit |
| 09/15/1992 | US5146765 Device for evaporatie cooling of the neck |
| 09/15/1992 | CA1307441C Powered respirators |
| 09/10/1992 | DE4106975A1 Gas application helmet with loudspeakers - supplies gas e.g. oxygen@ for breathing via regulating valve or variable flowmeter from source placed at selected position |
| 09/01/1992 | US5143061 Supplemental seal for oxygen mask |
| 08/11/1992 | US5138666 Voice transmission system |
| 07/29/1992 | EP0495864A1 Respiratory protection device |
| 07/29/1992 | CN1063049A Improvements in or relating to safety helmets |
| 07/15/1992 | CN2109865U Forest fire helment |
| 07/07/1992 | USH1072 Filter canisters, blowers, heaters and electronics |
| 07/01/1992 | EP0492984A1 Improvements in or relating to protective helmets |
| 06/30/1992 | US5125402 Powered respirators |
| 06/25/1992 | WO1992010237A1 Improvements in or relating to safety helmets |
| 06/17/1992 | EP0489815A1 Improvements in or relating to safety helmets |
| 06/17/1992 | CN2107288U Protection mask |
| 06/03/1992 | EP0488880A1 Protective isolation suit |
| 06/02/1992 | CA1302009C Universal head harness |
| 05/27/1992 | DE4037034A1 Protective firearm helmet - has hard hat part and shock-absorbing inner basket formation |
| 05/26/1992 | US5115804 Protective hood and oral-nasal mask |
| 05/19/1992 | US5113854 Quick-donning protective hood assembly |
| 05/19/1992 | US5113853 Helmet with filtered air supply |
| 05/12/1992 | US5112683 For flames spraying, welding, soldering, painting, |
| 05/12/1992 | CA1300468C Exhalation valve |
| 05/06/1992 | EP0483946A1 High temperature resistance mask |
| 05/06/1992 | EP0483295A1 Ori-nasal mask |
| 04/29/1992 | EP0483020A1 Aircrew breathing protection gear |
| 04/29/1992 | EP0482023A1 Molded nosecup valve assembly. |
| 04/21/1992 | CA1299058C Crew oxygen mask with pneumatic comfort adjustment |
| 04/14/1992 | US5104430 Mask with an air filtering device |
| 04/14/1992 | US5103815 Personal airflow gage for a personal breathing supply of respirable quality air, and related accessories, including a two way communication system, used while working in contaminated air spaces |
| 04/07/1992 | USH1039 Intrusion-free physiological condition monitoring |
| 04/07/1992 | US5101816 Separable valve assembly |
| 04/02/1992 | WO1992004941A1 Filter spool for a respirator |
| 03/31/1992 | US5099525 Face protecting mask intended to be used in general medicine and more particularly in surgery |
| 03/26/1992 | DE4029939A1 Valve for breathing protection mask - has two flexible tongues which form seal with transverse rib |
| 03/18/1992 | CN2098938U Multi-function face guard |
| 03/11/1992 | EP0474372A2 Respiratory protective apparatus |
| 03/03/1992 | USH1023 Removable lens cover for protective coveralls |
| 03/03/1992 | CA1296487C Perimeter seal for disposable respirators |
| 02/27/1992 | DE4026768A1 Respiration mask - is coated with mixed catalyst destroying ozone in air |
| 02/25/1992 | CA1296236C Smoke hood against smoke and hypoxy |
| 02/19/1992 | EP0471264A2 Protective helmet with protective facepiece connection and adjustment provision |
| 02/19/1992 | CN2096385U Electric blower type dus prevention safety helmet |
| 02/12/1992 | EP0470791A2 Emergency escape breathing apparatus |
| 02/11/1992 | US5086768 Respiratory protective device |
| 02/04/1992 | CA1295088C Support structure for protective mask optical insert |
| 01/29/1992 | EP0468188A1 Air filtration and control system |
| 01/29/1992 | CN2094359U Simple protective face mask |
| 01/15/1992 | EP0465971A2 Combination head-protective helmet & communications system |
| 01/14/1992 | US5080092 Protective mask |
| 01/08/1992 | EP0464342A2 Connector |
| 01/08/1992 | EP0464234A1 Breathing air supply apparatus |
| 01/07/1992 | US5078130 Personnel headgear enabling free breathing of ambient air or selective breathing from various sources |
| 01/03/1992 | CA2041797A1 Connector |
| 01/02/1992 | EP0463383A2 Breathing protection mask with easily changeable breathing filter |
| 12/27/1991 | WO1992000120A1 Improved breathing equipment for aircrew |
| 12/17/1991 | CA1293094C Resilient shape-retaining fibrous filtration face mask |
| 12/12/1991 | WO1991018647A1 Respirator |
| 12/12/1991 | WO1991018569A1 Face shield |
| 12/12/1991 | DE4018041A1 Oxygen application helmet with regulating valve or flowmeter - has two small electromotors lifting tug cords against spring force to open visor if gas flow interrupted |
| 12/04/1991 | EP0459123A1 Breathing protection mask |
| 12/03/1991 | US5069205 Quick-donning head harness assembly |
| 11/27/1991 | CN2089348U Paint spraying protective helmet |
| 11/19/1991 | US5065745 Portable respiratory protection device |
| 11/05/1991 | US5062421 Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making |
| 10/29/1991 | CA1291393C Unidirectional fluid valve |
| 10/23/1991 | EP0452486A1 Face mask apparatus |
| 10/22/1991 | US5058207 Viewing window for heat protective clothing |
| 10/16/1991 | EP0451877A2 Protective respiratory mask |
| 10/08/1991 | US5054480 Personal air filtration and control system |
| 10/08/1991 | US5054479 Safety visor having a rotatably mounted shield and filter |
| 10/02/1991 | EP0448876A2 Filter cartridge |
| 10/01/1991 | US5052084 Elastic strap fastener assembly |
| 09/30/1991 | CA2036639A1 Filter cartridge |
| 09/25/1991 | EP0448131A2 Breathing protection mask |
| 09/25/1991 | EP0447619A1 Warning system with a measuring cell and alarm signal to indicate the condition of a gas filter |
| 09/24/1991 | US5050594 Adjustable respirator mask apparatus |
| 09/24/1991 | US5050240 Air cushion helmet support and ventilation system with air pressure regulator |
| 09/17/1991 | US5048516 Respiratory mask |
| 09/17/1991 | CA1289036C Valve-talking device |
| 09/10/1991 | US5046492 Clean room helmet system |