A resistance breathing device includes a face mask having a perimeter and a central aperture extending therethrough, and being adapted to overlay a user's mouth and nose such that the perimeter forms an air-tight seal with the user's face. An outer layer overlays the face mask and includes a pair of
A resistance breathing device includes a face mask having a perimeter and a central aperture extending therethrough, and being adapted to overlay a user's mouth and nose such that the perimeter forms an air-tight seal with the user's face. An outer layer overlays the face mask and includes a pair of straps for affixing the face mask about a user's face. An insert plate is disposed within the central aperture of the face mask and has an inlet aperture extending therethrough. A central insert overlays the insert plate, has an air inlet aperture extending therethrough, and is movable between a first position in which a first portion of the air inlet aperture overlaps the air inlet aperture of the insert plate and a second position in which a larger second portion of the air inlet aperture overlaps the air inlet aperture of the insert plate.
대표청구항▼
1. A resistance breathing device, comprising: a face mask having an interior surface, an exterior surface opposite said interior surface, an aperture extending through said face mask from said exterior surface to said interior surface, and a perimeter, wherein said face mask is adapted to overlay a
1. A resistance breathing device, comprising: a face mask having an interior surface, an exterior surface opposite said interior surface, an aperture extending through said face mask from said exterior surface to said interior surface, and a perimeter, wherein said face mask is adapted to overlay a user's mouth and nose such that said perimeter forms an air-tight seal with the user's face and around the user's mouth and nose and said face mask defines an internal area between said interior surface of said face mask and the user's face;an outer layer overlaying said face mask and having a pair of straps with inter-engaging ends for affixing said face mask about the user's face;an insert plate having an interior surface, an exterior surface opposite said interior surface of said insert plate, and at least one inlet aperture extending therethrough, said insert plate being disposed within said aperture of said face mask, said aperture of said face mask forming an air-tight seal around said insert plate;a central insert including an interior surface, an exterior surface opposite said interior surface of said central insert, and at least one inlet aperture extending therethrough, said central insert overlaying said insert plate such that said interior surface of said central insert faces said exterior surface of said insert plate and such that at least a portion of said at least one inlet aperture of said central insert overlays said at least one inlet aperture of said insert plate, said central insert being movable with respect to said insert plate between at least a first position and a second position, wherein when said central insert is in said first position, a first portion of said at least one inlet aperture of said central insert overlays said at least one inlet aperture of said insert plate, and wherein when said central insert is in said second position, a second portion of said at least one inlet aperture of said central insert overlays said at least one inlet aperture of said insert plate, said second portion of said at least one inlet aperture of said central insert being larger in size than said first portion of said at least one inlet aperture of said central insert; andan air exhaust valve assembly adapted to prevent air from passing therethrough from an external environment to said internal area, said at least one air exhaust valve assembly being adapted to allow air to pass therethrough from said internal area of said face mask to the external environment,wherein said central insert id moveable rotationally about an axis of rotation and relative to said insert plate,wherein said at least one inlet aperture of said inlet plate and said at least one inlet aperture of said central insert are circumferentially arrayed about the axis of rotation,wherein said central insert includes a handle that facilitates movement of said central insert between said first position and said second position, andwherein said handle extends in a direction radially away from said axis of rotation, wherein a ridge extends along a side of said handle facing said interior surface of said central insert, and wherein a plurality of grooves is formed in said insert plate, said ridge and each of said plurality of grooves being sized, shaped, and positioned in a complementary manner such that, when said central insert is in said first position, said ridge of said handle is positioned within a first one of said plurality of grooves, and such that, when said central insert is in said second position, said ridge of said handle is positioned within a second one of said plurality of grooves. 2. The resistance breathing device of claim 1, wherein said face mask is made from a material including at least one of a rubber, a thermoplastic elastomer, silicone, styrene-ethylene/propylene-styrene, and styrene-ethylene/butylene-styrene. 3. The resistance breathing device of claim 1, wherein said insert plate and said central insert are each made from a material including at least one of a polycarbonate plastic, a polypropylene plastic, and a nylon plastic. 4. The resistance breathing device of claim 1, wherein said outer layer includes a fabric material. 5. The resistance breathing device of claim 4, wherein said fabric material includes an elastic material. 6. A resistance breathing device, comprising: a face mask having an interior surface, an exterior surface opposite said interior surface, an aperture extending through said ace mask from said exterior surface to said interior surface, and a perimeter, wherein said face mask is adapted to overlay a user's mouth and nose such that said perimeter forms an air-tight seal with the user's face and around the user's mouth and nose and said face mask defines an internal area between said interior surface of said face mask and the user's face;an outer layer overlaying said face mask and having a pair of straps with inter-engaging ends for affixing said face mask about the user's face;an insert having at least one inlet aperture extending therethrough, said insert being disposed within said aperture of said face mask, said aperture of said face mask forming an air-tight seal around said insert;an adjustment element including at least one inlet aperture extending therethrough, said adjustment element being movably attached to said insert such that said adjustment element is movable with respect to said insert between at least a first position and a second position, wherein when said adjustment element is in said first position, a first at least a portion of at least one of said at least one inlet aperture of said adjustment element overlays a first at least a portion of at least one of said at least one inlet aperture of insert, and wherein when said adjustment element is in said second position, a second at least a portion of at least one of said at least one inlet aperture of said adjustment element overlays a second at least a portion of at least one of said at least one inlet aperture of said insert, said second at least a portion of said at least one of said at least one inlet aperture of said adjustment element being larger in size than said first at least a portion of said at least one of said at least one inlet aperture of said adjustment element; andan air exhaust valve assembly adapted to prevent air from passing therethrough from an external environment to said internal area, said at least one air exhaust valve assembly being adapted to allow air to therethrough from said internal area of said face mask to the external environment,wherein said adjustment element is movable rotationally about an axis of rotation and relative to said insert,wherein said adjustment element includes a handle that facilitates movement of said adjustment element between said first position and said second position, andwherein said handle extends in a direction radially away from the axis of rotation, wherein a ridge extends along a side of said handle facing said insert, and wherein a plurality of grooves is formed in said insert, said ridge and each of said plurality of grooves being sized, shaped, and positioned in a complementary manner such that, when said adjustment element Is in said first position, said ridge of said handle is positioned within a first one of said plurality of grooves, and such that, when said adjustment element is in said second position, said ridge of said handle is positioned within a second one of said plurality of grooves. 7. The resistance breathing device of claim 6, wherein said at least one inlet aperture of said adjustment element and said at least one inlet aperture of said insert are circumferentially arrayed about the axis of rotation. 8. The resistance breathing device of claim 6, wherein said handle includes a grip. 9. The resistance breathing device of claim 6, wherein said adjustment element is attached to said insert by at least one clip. 10. The resistance breathing device of claim 6, wherein said at least one inlet aperture of said insert includes a plurality of inlet apertures and said at least one inlet aperture of said adjustment element includes a plurality of inlet apertures. 11. The resistance breathing device of claim 10, wherein said plurality of inlet apertures of said insert includes three inlet apertures and said plurality of inlet apertures of said adjustment element includes three inlet apertures. 12. The resistance breathing device of claim 6, wherein said face mask and said insert are integrally formed. 13. The resistance breathing device of claim 12, wherein said face mask is overmolded to said insert. 14. The resistance breathing device of claim 6, wherein said insert includes a central aperture, and wherein said adjustment element includes a central aperture overlaying said central aperture of said insert plate and having a profile complementary to said central aperture of said insert plate, a biasing member extending across said central aperture of said adjustment element, and a stem extending from a center of said biasing member and away from said insert. 15. The resistance breathing device of claim 14, wherein said air exhaust valve assembly includes said central aperture of said insert, said central aperture of said adjustment element, and a flexible membrane having a first side, a second side opposite said first side, a profile complementary to said central aperture of said central insert, a post extending from said first side, and a central hole extending through said post and said first and second sides, said flexible membrane being disposed adjacent said adjustment element such that said stem of said adjustment element is disposed within said central hole of said flexible membrane and said second side of said flexible membrane abuts said biasing member of said adjustment element. 16. The resistance breathing device of claim 15, further comprising a face plate having an interior surface and an exterior surface opposite said interior surface of said face plate, said face plate overlaying said insert and being oriented such that said interior surface of said face plate faces said insert. 17. The resistance breathing device of claim 16, wherein said face plate includes a retainer extending from said interior surface of said face plate, said retainer being sized, shaped, and positioned so as to abut said stem of said adjustment element. 18. The resistance breathing device of claim 17, wherein said face plate includes a plurality of slots extending therethrough, said retainer of said face plate being located between a first one of said plurality of slots and a second one of said plurality of slots. 19. The resistance breathing device of claim 18, wherein each of said plurality of slots is sized, shaped, and positioned so as to allow air to pass therethrough. 20. The resistance breathing device of claim 19, wherein said face plate is fixed to said insert by at least one clip.
Danford, Casey J., High performance ventilatory training mask incorporating multiple and adjustable air admittance valves for replicating various encountered altitude resistances.
Kotliar, Igor K., Method of producing hypoxic environments in occupied compartments with simultaneous removal of excessive carbon dioxide and humidity.
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