Full face mask
First Claim
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1. A full face mask comprising;
- an air filtration shell, said shell being made of a filtration material and having a three dimensional form suitably shaped to cover the nose, mouth and eyes of the wearer and to form a perimeter which surrounds the forehead, temples, cheek-bones, cheeks and chin areas of the wearer,said shell comprising a nose and mouth portion, a viewing lens portion, a forehead portion, a perimeter, a window for receiving a viewing lens and a window frame, a viewing lens, said viewing lens being an optically-correct transparent lens having a perimeter shaped to fit in said window and being bonded to the perimeter of said window frame, a face sealing rim made of a flexible material and having a suitably shaped perimeter and an aperture, said face sealing rim being attached to said perimeter of said air filtration shell and directly contacting the wearer'"'"'s face and effecting a continuous seal between itself and the wearer'"'"'s forehead, temples, cheek-bones, cheeks and chin areas, said shaped perimeter of said face sealing rim being defined by an interior outline and an exterior outline, said interior outline being suitably shaped to provide a wider viewing lens area and a narrower nose and mouth area, said mask further comprising a breathing chamber partition member that divides said breathing chamber into an upper breathing chamber and a lower breathing chamber, said partition member comprising a lateral wall which is surrounded with and defined by a front border, side borders and a contoured face-contacting border which is shaped to effect a seal between said lateral wall and the nose bridge and cheeks of the wearer'"'"'s face, said lateral wall of said breathing chamber partition member further comprising at least one inhalation valve, said inhalation valve allowing flow of air only from the upper breathing chamber of said air filtration shell to the lower breathing chamber of said air filtration shell.
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Abstract
Disclosed is a novel light weight inexpensive full face mask in which the air filtration function is carried out by an air filtration shell which has at least a portion of its surface made of a porous filtration material. The air filtration shell also acts as a breathing chamber. Also disclosed is a lower cost yet an effective method for providing a cooler breathing chamber and minimizing the volume of re-inhaled exhaled-air in any full face mask.
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1 Claim
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1. A full face mask comprising;
- an air filtration shell, said shell being made of a filtration material and having a three dimensional form suitably shaped to cover the nose, mouth and eyes of the wearer and to form a perimeter which surrounds the forehead, temples, cheek-bones, cheeks and chin areas of the wearer,
said shell comprising a nose and mouth portion, a viewing lens portion, a forehead portion, a perimeter, a window for receiving a viewing lens and a window frame, a viewing lens, said viewing lens being an optically-correct transparent lens having a perimeter shaped to fit in said window and being bonded to the perimeter of said window frame, a face sealing rim made of a flexible material and having a suitably shaped perimeter and an aperture, said face sealing rim being attached to said perimeter of said air filtration shell and directly contacting the wearer'"'"'s face and effecting a continuous seal between itself and the wearer'"'"'s forehead, temples, cheek-bones, cheeks and chin areas, said shaped perimeter of said face sealing rim being defined by an interior outline and an exterior outline, said interior outline being suitably shaped to provide a wider viewing lens area and a narrower nose and mouth area, said mask further comprising a breathing chamber partition member that divides said breathing chamber into an upper breathing chamber and a lower breathing chamber, said partition member comprising a lateral wall which is surrounded with and defined by a front border, side borders and a contoured face-contacting border which is shaped to effect a seal between said lateral wall and the nose bridge and cheeks of the wearer'"'"'s face, said lateral wall of said breathing chamber partition member further comprising at least one inhalation valve, said inhalation valve allowing flow of air only from the upper breathing chamber of said air filtration shell to the lower breathing chamber of said air filtration shell.
- an air filtration shell, said shell being made of a filtration material and having a three dimensional form suitably shaped to cover the nose, mouth and eyes of the wearer and to form a perimeter which surrounds the forehead, temples, cheek-bones, cheeks and chin areas of the wearer,
Specification
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Current AssigneeAmad Tayebi
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Original AssigneeAmad Tayebi
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InventorsTayebi, Amad
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Primary Examiner(s)Dawson, Glenn K.
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Assistant Examiner(s)MENDOZA, MICHAEL G
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Application NumberUS10/228,978Publication NumberTime in Patent Office1,218 DaysField of Search128/201.17, 128/206.16, 128/206.19, 128/201.12, 128/206.23, 128/206.24, 128/206.28, 128/205.27, 128/205.29, 128/206.12, 128/206.21US Class Current128/206.19CPC Class CodesA62B 18/02 Masks gas-masks for animals...A62B 23/025 the filter having substanti...
