Maintenance-free anti-fog respirator
US-9770611-B2 · Sep 26, 2017 · US
US12458083B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12458083-B2 |
| Application number | US-202117566878-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 31, 2021 |
| Priority date | Jun 10, 2020 |
| Publication date | Nov 4, 2025 |
| Grant date | Nov 4, 2025 |
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A face mask configured to be worn on a human head includes a face shield and an ear loop. The ear loop is connected to a lateral side of the face shield. The ear loop defines an elongated narrow center portion positioned between an enlarged first end and an enlarged second end opposite the first end. The enlarged first end is connected to an upper portion of the lateral side of the face shield. The enlarged second end is connected to a lower portion of the lateral side of the face shield. The enlarged first end overlaps the enlarged second end along the lateral side of the face shield.
Opening claim text (preview).
What is claimed is: 1 . A face mask configured to be worn on a human head, the face mask comprising: a face shield including an upper perimeter, a lower perimeter and a lateral side; and an ear loop connected to the lateral side of the face shield, the ear loop provided by a free-cut piece of fabric including a first surface and an opposing second surface, the free-cut piece of fabric having a shape defined by an elongated narrow center portion positioned between an enlarged first end and an enlarged second end opposite the first end, wherein the enlarged first end is connected to an upper portion of the lateral side of the face shield with the first surface of the free-cut piece of fabric facing outwardly at the enlarged first end, wherein the enlarged second end is connected to a lower portion of the lateral side of the face shield with the second surface of the free-cut piece of fabric also facing outwardly at the enlarged second end, wherein the enlarged first end of the ear loop overlaps the enlarged second end of the ear loop along the lateral side of the of the face shield, wherein the enlarged first end of the ear loop extends from the upper perimeter of the face shield to the lower portion of the lateral side, and wherein the enlarged second end of the ear loop extends from the lower perimeter of the face shield to the upper portion of the lateral side. 2 . The face mask of claim 1 wherein the enlarged first end of the ear loop does not extend to the lower perimeter of the face shield, and wherein the enlarged second end of the ear loop does not extend to the upper perimeter of the face shield. 3 . The face mask of claim 1 wherein the free cut piece of fabric includes a first surface on one side of the fabric and a second surface on an opposing side of the fabric, wherein the first surface of the fabric faces outward at both the enlarged first end and the enlarged second end of the ear loop. 4 . The face mask of claim 3 wherein the free-cut piece of fabric is a stretch fabric. 5 . The face mask of claim 1 further comprising at least two stitch lines extending from the lateral side of the face shield toward a central portion of the face shield. 6 . The face mask of claim 5 wherein the at least two stitch lines diverge in a direction from the lateral side to the central portion of the face shield. 7 . The face mask of claim 1 wherein the face mask is a solitary article of apparel that does not extend beyond the upper perimeter or the lower perimeter of the face shield. 8 . A face mask configured to be worn on a human head, the face mask comprising: a face shield including a lateral side; and an ear loop connected to the lateral side of the face shield, the ear loop defining an elongated narrow center portion positioned between an enlarged first end and an enlarged second end opposite the first end, the enlarged first end connected to an upper portion of the lateral side of the face shield, the enlarged second end connected to a lower portion of the lateral side of the face shield, and the enlarged first end overlapping the enlarged second end along the lateral side of the face shield, wherein the enlarged first end of the ear loop extends downward from an upper perimeter of the face shield to the lower portion of the lateral side, and wherein the enlarged second end of the ear loop extends upward from a lower perimeter of the face shield to the upper portion of the lateral side, and wherein the ear loop is provided by a free-cut piece of fabric including a first surface and an opposing second surface. 9 . The face mask of claim 8 wherein the enlarged first end extends downward from the upper perimeter of the face shield and terminates prior to reaching the lower perimeter of the face shield. 10 . The face mask of claim 8 wherein the enlarged second end extends upward from the lower perimeter of the face shield and terminates prior to reaching the upper perimeter of the face shield. 11 . The face mask of claim 8 wherein the first surface of the free-cut piece of fabric faces outwardly from the lateral side at both the enlarged first end and the enlarged second end. 12 . The face mask of claim 8 wherein the free-cut piece of fabric is a stretch fabric. 13 . A face mask configured to be worn on a human head, the face mask comprising: a face shield including a body portion, an upper lip, and a lower lip, the body portion positioned between the upper lip and the lower lip and extending from a left perimeter to a right perimeter of the face shield, the upper lip extending along an upper perimeter of the body portion from a right edge to a left edge of the body portion, the upper lip defining an upper perimeter of the face shield, and the lower lip extending along a lower perimeter of the body portion from the right edge to the left edge, the lower lip defining a lower perimeter of the face shield; and a left ear loop connected to the left perimeter of the face shield and a right ear loop connected to the right perimeter of the face shield, both the left ear loop and the right ear loop include a narrow center portion extending between an enlarged first end and an enlarged second end with the enlarged first end overlapping the enlarged second end along a lateral portion of the face shield; wherein the body portion defines a first thickness and includes a foam layer positioned between an inner fabric layer and an outer fabric layer; wherein the upper lip defines a second thickness that is substantially less than the first thickness and includes a flexible nose bridge positioned between an inner fabric layer and an outer fabric layer; and wherein the lower lip defines a third thickness that is substantially less than the first thickness and includes at least one fabric layer. 14 . The face mask of claim 13 wherein each fabric layer is provided by a stretch knit fabric. 15 . The face mask of claim 13 wherein the inner fabric layer and outer fabric layer of the upper lip are contiguous layers that define a channel with the nose bridge positioned in the channel. 16 . The face mask of claim 13 wherein both the left ear loop and the right ear loop comprise a free-cut piece of fabric.
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