Liner for a respirator mask
First Claim
1. A respirator mask liner for engaging the face of a wearer, said mask liner comprising:
- a woven flexible sheet material having an outer perimeter edge portion and defining a hole spaced inwardly from said outer perimeter edge portion, the flexible sheet material including a plurality of tabs unitarily formed with said perimeter edge portion andprojecting outwardly from respective portions of said perimeter edge portion that are adjacent said tabs, wherein said tabs comprise a pair of upper tabs arranged symmetrically at opposite sides of an upper portion of said flexible sheet material and a pair of lower tabs spaced from the pair of upper tabs and arranged symmetrically at opposite sides of a lower portion of said flexible sheet material; and
an attachment element along a mask-facing surface of each of said tabs;
wherein when said flexible sheet material is placed between the face of the wearer and a gasket portion of a respirator mask, each of said tabs projects outwardly beyond the gasket portion of the respirator mask, and wherein said attachment elements are configured to secure said flexible sheet portion to the respirator mask.
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Accused Products
Abstract
A respirator mask liner is provided for positioning between a respirator mask and the face of a wearer. The mask liner includes a flexible sheet material having an outer perimeter edge portion and a hole that is spaced inwardly from the outer perimeter edge portion. At least one tab projects outwardly from portions of the perimeter edge portion, and may be unitarily formed with the sheet material. The mask liner is configured so that when it is to be placed between the face of the wearer and the respirator mask, the tab or tabs project outwardly beyond the gasket portion of the respirator mask, so that the tabs may be used for adjusting the liner or securing the liner to the mask. Optionally, the mask liner has a surface texture with a ribbed and undulating pattern of raised portions, and/or incorporates an anti-microbial substance.
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Citations
19 Claims
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1. A respirator mask liner for engaging the face of a wearer, said mask liner comprising:
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a woven flexible sheet material having an outer perimeter edge portion and defining a hole spaced inwardly from said outer perimeter edge portion, the flexible sheet material including a plurality of tabs unitarily formed with said perimeter edge portion and projecting outwardly from respective portions of said perimeter edge portion that are adjacent said tabs, wherein said tabs comprise a pair of upper tabs arranged symmetrically at opposite sides of an upper portion of said flexible sheet material and a pair of lower tabs spaced from the pair of upper tabs and arranged symmetrically at opposite sides of a lower portion of said flexible sheet material; and an attachment element along a mask-facing surface of each of said tabs; wherein when said flexible sheet material is placed between the face of the wearer and a gasket portion of a respirator mask, each of said tabs projects outwardly beyond the gasket portion of the respirator mask, and wherein said attachment elements are configured to secure said flexible sheet portion to the respirator mask. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A respirator mask liner comprising:
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a flexible woven fabric sheet portion comprising a blend of a lower-elasticity first fiber blended with a higher-elasticity second fiber having higher elasticity than said first fiber, wherein said first fiber makes up about 95 to 98 percent of said mask liner by weight and said second fiber makes up about 2 to 5 percent of said mask liner by weight; an opening defined along an interior region of said fabric sheet portion, wherein said opening is configured to receive a portion of a wearer'"'"'s nose and/or mouth; and said flexible woven sheet portion comprises a skin-contacting surface that is woven to have a ribbed surface including a predetermined pattern of raised undulations configured to be placed in contact with the face of the wearer and to obstruct airflow between said skin-contacting surface and the wearer'"'"'s skin. - View Dependent Claims (15, 16)
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17. A respirator mask liner comprising:
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a flexible sheet portion having an outer perimeter region generally conforming to a shape of a respirator mask and having a perimeter edge, wherein said outer perimeter region defines an inner opening along an interior region of said sheet portion, wherein said inner opening is configured to receive a portion of a wearer'"'"'s nose and/or mouth; a plurality of tabs unitarily formed with said flexible sheet portion and projecting outwardly from respective portions of said perimeter edge portion that are adjacent said tabs, wherein said tabs comprise a pair of upper tabs arranged symmetrically at opposite sides of an upper portion of said flexible sheet material and a pair of lower tabs arranged symmetrically at opposite sides of a lower portion of said flexible sheet material; wherein said flexible sheet portion comprises a skin-contacting surface that is woven to have a ribbed surface including a predetermined pattern of raised undulations configured to be placed in contact with the face of the wearer and to obstruct airflow between said skin-contacting surface and the wearer'"'"'s skin, wherein said raised undulations are spaced apart at first spacing intervals in a first direction and spaced apart at second spacing intervals that are greater than said first spacing intervals in a second direction that is substantially perpendicular to the first direction; an anti-microbial substance incorporated at said flexible sheet portion, whereby said flexible sheet portion with said anti-microbial substance substantially inhibits growth of bacteria or microbes on said mask liner; and wherein said anti-microbial substance is incorporated at said flexible sheet portion by at least one chosen from;
(i) anti-microbial spray application, (ii) anti-microbial bath dip, and (iii) incorporation of anti-microbial fibers woven into said flexible sheet portion. - View Dependent Claims (18, 19)
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Specification