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| Number | Title | Issue Date |
| 8146594 | Flat-folded personal respiratory protection devices A personal respiratory protection device that includes a multi-layered structure and first and second means for attaching a headband. The multilayered structure includes a filter medium and is divided into a flat upper panel, a flat non-rectangular central panel, an... | 04/03/2012 |
| 8091550 | Face mask having baffle layer for improved fluid resistance A face mask is provided. The face mask includes a body portion that is configured to be placed over a mouth and at least part of a nose of a user such that the air of respiration is drawn through the body portion. The body portion includes a baffle layer which helps... | 01/10/2012 |
| 8066005 | Complex respirator A complex respirator is provided that includes a first shell, at least a first filter layer and a second filter layer. The first filter layer is replaceable and arranged on an outer side of the first shell while the first shell is disposed on an outer side of the se... | 11/29/2011 |
| 8061356 | Directional flat face mask A face mask has mask material and ties or ear loops coupled to the mask material. The face mask is flat until worn. The mask material has an outside and an inside, which inside is designed to be against the wearer's face when the mask is worn. A deformable nose stri... | 11/22/2011 |
| 7726314 | Nebulizer, filter or inhalant mask encouraging use thereof The present invention is a generally conical nebulizer, aerosol, filter or inhalant face mask for sealing against the atmosphere a wearer's mouth and nose, the improvement comprising a representation of a face on the outside surface with an exhaust valve located whe... | 06/01/2010 |
| 7717114 | Mask seal interface A face-seal interface for a respiratory mask utilizing an elastomer containing precipitated particles on its surface to provide a more comfortable long-term engagement with the skin of a wearer. A particle filled bladder forming the face-seal interface keeps a set s... | 05/18/2010 |
| 7694680 | Aviator emergency oxygen system A method, a system, and an oxygen delivery boomlet are configured to provide an additional partial pressure of oxygen to an aviator. The boomlet includes a conduit configured to receive an oxygen flow from a positive pressure oxygen source. A nozzle is in communicat... | 04/13/2010 |
| 7650884 | Respiratory facepiece and method of making a facepiece using separate molds A facepiece insert (16) that has a fluid communication component (30, 32) non-integrally joined to a supporting portion (34). The insert can be made by (a) providing at least one supporting portion (34) of a facepiece insert (16); ... | 01/26/2010 |
| 7428903 | Fibrous filtration face mask having a new unidirectional fluid valve A filtering face mask that has a mask body and an exhalation valve. The mask body is adapted to fit over the nose and mouth of a wearer. The exhalation valve is positioned on the mask body substantially opposite to a wearer's mouth. The exhalation valve comprises a ... | 09/30/2008 |
| 7406965 | Forehead support for facial mask A respiratory mask assembly includes a frame and a forehead support secured to the frame. The forehead support includes a joining member secured to an upper portion of the frame and a cushion frame movably mounted to the joining member. One of the joining member and... | 08/05/2008 |
| 7404401 | Water respirator filter This water respirator filter will allow the individual who is working in dangerous environments to be able to filter air through a water and solid filtering media. The first stage allows the air to pass through the liquid filtering media, such as water, and then pas... | 07/29/2008 |
| 7364782 | Flocked transfer and article of manufacture including the application of the transfer by thermoplastic polymer film A flocked transfer is produced by applying a release agent to a release sheet, and then applying the flocking to a release agent. Unlike the traditional method, a binder and thermoplastic hot melt film is applied to the back of the flock. The transfer, which is esse... | 04/29/2008 |
| 7364607 | Wrought fiber sheet and filter unit A wrought fiber sheet or air cleaning filter unit that exhibits high performance and is biodegradable so as to enable reducing load upon environment. The wrought fiber sheet is produced by coupling biodegradable fiber sheets having electret properties by means of a ... | 04/29/2008 |
| 7357135 | Protective hood with fan assembly The present system includes a protective hood with a vent opening and a transparent shield mounted to a front portion of the hood. In a basic configuration, a fan assembly is removably mounted to the hood and coupled to the vent opening to direct airflow within the ... | 04/15/2008 |
| 7357217 | Faceplate cover The present invention provides an improved method and apparatus for manufacturing communication devices. A cover is attached to a surface of a faceplate that includes at least one opening, to provide enhanced device protection and sound quality. In one embodiment of... | 04/15/2008 |
| 7351368 | Flocked articles and methods of making same A method of manufacturing a molded article using lamination of a flocked surface onto a backing film is provided. Also provided is a flocked article comprising an antimicrobial agent. ... | 04/01/2008 |
| 7337779 | Facemask tape-adjuster The facemask tape-adjuster is an adjusting device for the tapes of facemasks comprising of a upper piece and a lower piece respectively made joint at one edge, in which the inner face of upper piece is made to have pressing region complementary to that which is made... | 03/04/2008 |
| 7338697 | Co-molded direct flock and flock transfer and methods of making same A method of decorating a molded article is provided that includes the steps of: (a) providing a mold insert comprising a plurality of flock fibers and a permanent adhesive layer; (b) positioning the mold insert in ... | 03/04/2008 |
| 7334579 | Low resistance to flow filter The present invention discloses a seamless pad-type filter which is characterized in that it comprises two co-extensive sides, a top side and a bottom side. The top and bottom sides are made of fluid filtration material. The two sides create an inner chamber therebe... | 02/26/2008 |
| 7320722 | Respiratory protection device that has rapid threaded clean air source attachment A personal respiratory protection device 10 that comprises a mask body 12 that has a structure 35 located on it for receiving a clean air supply source such as a filter cartridge 14. The clean air receiving structure 35 has a first... | 01/22/2008 |
| 7314497 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 01/01/2008 |
| 7313829 | Sealing device for body suit and sealing method using hydrogels A sealing device for a body suit and a sealing method utilize a reactive seal that incorporates a swelling polymer activated upon contact with a fluid medium, such as water. The reactive seal can be embodied in a neck seal, wrist seal, or ankle seal of the body suit... | 01/01/2008 |
| 7311880 | Well-less filtration device The present invention provides a well-less filtration device that includes a pre-filter layer; a support layer; and at least one layer of solid phase extraction medium disposed between the pre-filter layer and the support layer. At least a portion of the pre-filter ... | 12/25/2007 |
| 7311104 | Method of making a filtering face mask that has an exhalation valve A method of making a filtering face mask, which method includes the steps of: (a) providing (i) a valve seat that comprises an orifice and a seal surface, wherein the orifice allows air to pass therethrough and is surrounded by the seal surface, and (ii) a single fl... | 12/25/2007 |
| 7311102 | Protective apparel Apparel suitable for providing protection against noxious agents, wherein the apparel comprises a laminate material that provides a substantially effective barrier against the noxious agents. It is preferred that the laminate material comprises two or more layers, a... | 12/25/2007 |
| 7309372 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 12/18/2007 |
| 7290545 | Face mask with anti-fog folding A face mask is provided that is configured to reduce or eliminate fogging that may occur on eye wear or an eyeshield worn by a user of the face mask. The face mask includes a body portion that has a layer with an inner surface configured for facing the face of the u... | 11/06/2007 |
| 7290546 | Nasal mask A nasal mask assembly for preferred use in CPAP treatment. The mask assembly comprises a central body, a face cushion, a forehead support and a gas inlet. The gas inlet is rotatably connected to the central body, and the forehead support is pivotally connected to th... | 11/06/2007 |
| 7288223 | Method and apparatus for producing a respiratory filter A method and apparatus in which a granular adsorbent, absorbent, chemisorptive, or catalytic material, particularly activated carbon is intermixed with (a) meltable polymer(s), and that the resulting mixture is heated under pressure and pressed into a molded piece (... | 10/30/2007 |
| 7263996 | Anion emission and anti-dust nose mask The present invention relates to an anion emission and anti-dust nose mask capable of enhancing a compatibility so that it is well adapted to various sizes and types of nose based on its flexibility, and it is possible to wear without any string based on a pressure ... | 09/04/2007 |
| 7261104 | Respirator facepieces The present invention provides an air-purifying respirator facepiece with a removable, one-piece filter element connector. It also has a removable component housing in the lens as well as a nosecup without inhalation valves that prevents fogging of the portion of th... | 08/28/2007 |
| 7256227 | Polymer modified gypsum membrane and uses therefor A composition which is applied to substrate surfaces to form a membrane to provide structural reinforcement thereto and prevent the release of gases and moisture from the substrate. The composition consists of polymer resin binders and gypsum. Further provided is a ... | 08/14/2007 |
| 7243651 | Cushion and mask therefor A nasal cushion (30) comprises a substantially triangularly shaped frame (32) from which extends a membrane (34). The frame (32) has a scalloped edge (36) by which the cushion (30) is affixed to a mask body. The membrane ( | 07/17/2007 |
| 7243650 | Custom fitted mask configured for coupling to an external gas supply system and method of forming same According to one embodiment, a method of forming a custom fitted mask configured for coupling to an external gas supply system includes applying a first sheet of deformable material against a contact portion of a user's face surrounding the user's nostrils while the... | 07/17/2007 |
| 7237550 | Respirator containing filter cases A respirator containing filter cases uses cellular elements or positioning boards provided in filter cases to consistently secure a plurality of particle-shape refillable filter materials in place, to prevent air breathing in through the respirator from forming chan... | 07/03/2007 |
| 7234466 | Forehead support for facial mask A forehead support (10) is disclosed that is adapted to be secured to a respiratory mask (16). The forehead support (10) including a joining member (14) for securing to the mask (16) and a cushion frame (12) pivotally mounte... | 06/26/2007 |
| 7213595 | Multi-stage respirator filter with TIM filter option A filter canister assembly for a gas mask comprising a primary canister with a first filter medium adapted to remove aerosols, particulate materials and droplets from air and a second filter medium comprising an adsorbent filter medium adapted to remove toxic gases ... | 05/08/2007 |
| 7210482 | Face mask structure A face mask structure has an upper mask portion, a middle mask portion, and a lower mask portion, which are formed integrally. The upper mask portion has an upper metal stripe disposed at a proper position thereof. The lower mask portion has a lower metal stripe dis... | 05/01/2007 |
| 7207335 | Mask and vent assembly therefor A mask (10) for use with a system for supplying breathable gas pressurised above atmospheric pressure to a human or animal's airways. The mask (10) includes a mask shell (12) which is, in use, in fluid communication with a gas supply conduit ( | 04/24/2007 |
| 7195015 | Breathing apparatus An inhalation opening 6 and an exhalation-opening 4 are formed in the facepiece 2 of a breathing apparatus 1 and the openings can be closed with an inhalation valve 8 and exhalation valve 7, respectively. If a person wearing... | 03/27/2007 |
