Stiffened filter mask
First Claim
Patent Images
1. A flat-folding mask comprising:
- a filter layer forming a rim and having;
first and second side panels extending from the rim;
a substantially centrally located front panel bridging the first and second side panels, the front panel being substantially flat; and
a fused portion spaced from the rim, the fused portion being seamless.
1 Assignment
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Accused Products
Abstract
A flat-folding mask includes a filter layer forming a rim. The filter layer has first and second side panels extending from the rim. A substantially centrally located front panel bridges the first and second side panels, the front panel being substantially flat. The filter layer further includes a fused portion that is seamless and spaced from the rim. Triangular pleats may add support to the side walls and increase the effective filtration area of the mask.
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Citations
110 Claims
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1. A flat-folding mask comprising:
a filter layer forming a rim and having;
first and second side panels extending from the rim;
a substantially centrally located front panel bridging the first and second side panels, the front panel being substantially flat; and
a fused portion spaced from the rim, the fused portion being seamless. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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13. The mask according to claim 13, wherein the first side panel is a top side panel, the second side panel is a bottom side panel, the mask further comprising a right side panel and a left side panel.
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27. A mask comprising:
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a filter layer forming a rim, the filter layer including;
a first seam and a second seam extending from the rim, a front panel between the first seam and the second seam, a first and second pleat, the front panel adjoining the first and second pleat, wherein the filter layer includes a fused portion being seamless and spaced from the rim, - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 107, 108, 109, 110)
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50. A method of manufacturing a mask having a filter layer, the method comprising:
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folding the filter layer to form two sections, each section having two ends and one side;
reshaping the two ends of each section to form two reshape lines, each of the two reshape lines having a non-linear portion; and
connecting the two sections along the two reshape lines such that the two sections form a pocket having a rim, wherein when the pocket is open at least two side panels extend from the rim to a front panel. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71)
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65. The method according 50, wherein the front panel is substantially flat.
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72. A method of manufacturing a mask having a filter layer, the method comprising:
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forming a fused portion in the filter layer, the fused portion being seamless;
connecting two planar surfaces of the filter layer to form a pocket having a rim, the fused portion spaced from the rim; and
pulling on the rim to open the pocket, the filter layer forming at least three side panels that extend from the rim to define a perimeter of a front panel. - View Dependent Claims (73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)
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86. A mask comprising:
a filter layer forming a rim, the filter layer including;
a front panel;
at least one side panel extending from the rim to the front panel; and
a first tab and a second tab extending seamlessly from the rim. - View Dependent Claims (87, 88, 89, 90)
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91. A flat-folding mask comprising:
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a rim;
a front panel spaced from the rim and being substantially centrally positioned, the front panel being substantially flat; and
a seamless fused portion spaced from the rim, the mask capable of folding substantially flat when not in use, the mask capable of opening for use after being folded flat, the mask when open forming a recess defined by the rim. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100)
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101. A mask comprising:
a filter layer forming a rim and having;
a front panel spaced from the rim, and a first triangular pleat adjoining the front panel. - View Dependent Claims (102, 103, 104, 105, 106)
Specification