Disposable face mask

• US 4,319,567 A
• Filed: 07/07/1980
• Issued: 03/16/1982
• Est. Priority Date: 07/07/1980
• Status: Expired due to Term

• Current Assignee: Moldex-Metric Products, Inc.
• Original Assignee: Moldex-Metric Products, Inc.
• Inventors: Magidson, Mark
• Primary Examiner(s): Recla, Henry J.
• Application Number:
  US06/166,315
• Time in Patent Office: 617 Days
• Field of Search: 128/206.19, 128/139, 128/206.24, 264/324
• US Class Current: 128/206.19
• CPC Class Codes: A41D 13/1146 obtained by moulding

Abstract

A face mask formed by a plurality of fibers and generally having a cup shape to fit over the mouth and nose of a wearer and for filtering the air passing through the fibers, including, a nose bridge portion, nose pad portions to either side of the nose bridge portion to fit against the sides of the nose and against the cheekbones of the wearer, and a central portion of the face mask below the nose bridge portion and the nose pad portions and with the fibers of the nose pad portions more lightly compacted than the fibers in at least the central portion of the face mask to have the nose pad portions thicker and more flexible than at least the central portion of the face mask for providing a seal against the sides of the nose and the cheekbones for preventing the passage of air between the mask and the face of the wearer.

Claims

1. A face mask formed by a blank piece of material composed of a plurality of fibers having a substantially constant thickness throughout and di-molded into a generally cup-shaped configuration to fit over the mouth and nose of a wearer and for filtering the air passing through the fibers, including,

a nose bridge portion,

nose pad portions to either side of the nose bridge portion to fit against the sides of the nose and against the cheekbones of the wearer, and

a central portion of the face mask below the nose bridge portion and the nose pad portions and with the fibers of the nose pad portions more lightly compacted during molding and thereby having a greater thickness than the fibers in at least the central portion of the face mask to have the nose pad portions thicker and more flexible than at least the central portion of the face mask for providing a seal against the sides of the nose and the cheekbones for preventing the passage of air between the mask and the face of the wearer.

2. The face mask of claim 1 wherein the nose pad portions are also more lightly compacted than the nose bridge portion.

3. The face mask of claim 1 wherein the nose bridge portion includes ridges extending across the nose bridge portion for providing shape retention for the face mask.

4. The face mask of claim 3 wherein the ridges include peaks and valleys and wherein the fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.

5. The face mask of claim 1 wherein the central portion of the face mask including ridges extending along the central portion for providing shape retention for the face mask.

6. The face mask of claim 5 wherein the ridges include peaks and valleys and wherein the fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.

7. The face mask of claim 1 additionally including a peripheral edge pad portion extending around the periphery of the face mask and with the fibers of the peripheral edge pad portion more lightly composed than the fibers in at least the central portion of the face mask to have the peripheral edge pad portion thicker and more flexible than at least the central portion of the face mask for providing a seal around the peripheral edge of the face mask for preventing the passage of air between the mask and the face of the wearer.

8. A face mask for filtering air to a wearer, including,

a blank piece of material composed of a plurality of non-woven fibers having a substantially constant thickness throughout and die-molded into a generally cup-shaped configuration for fitting over the mouth and nose of the wearer and with the molded cup-shaped configuration including

a nose bridge portion for laying along the bridge of the nose of the wearer,

nose pad portions lying to either side of the nose bridge portion for fitting against the sides of the nose and cheekbones of the wearer, and

a central portion lying below the nose bridge and nose pad portions and with the fibers of the nose pad portions more lightly compacted during molding and thereby having a greater thickness than the fibers of the nose bridge and central portions for providing sealing of the face mask along the sides of the nose and the cheekbones of the wearer.

9. The face mask of claim 8 wherein the nose bridge portion includes ridges extending across the nose bridge portion for providing shape retention for the nose bridge portion of the face mask.

10. The face mask of claim 9 wherein the ridges include peaks and valleys and wherein the molded fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.

11. The face mask of claim 8 wherein the central portion of the face mask including ridges extending along the central portion for providing shape retention for the central portion of the face mask.

12. The face mask of claim 11 wherein the ridges include peaks and valleys and wherein the molded fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.

13. The face mask of claim 8 additionally including a peripheral edge pad portion extending around the periphery of the face mask and with the molded fibers of the peripheral edge pad portion more lightly compacted than the fibers in at least the central portion of the face mask for providing sealing around the peripheral edge of the face mask.

14. A face mask for filtering air to a wearer, including,

a blank piece of material composed of a plurality of non-woven fibers having a substantially constant thickness throughout and die-molded into a generally cup-shaped configuration for fitting over the mouth and nose of the wearer and with the cup-shaped configuration including

a nose bridge portion for laying along the bridge of the nose of the wearer,

nose pad portions lying to either side of the nose bridge portion for fitting against the sides of the nose and cheekbones of the wearer,

a central portion lying below the nose bridge and nose pad portions, and

a peripheral edge pad portion extending around the periphery of the face mask and with the fibers of the edge pad portion more lightly compacted during molding and thereby having a greater thickness than the fibers of at least the central portion for providing sealing of the face mask around the edge of the face mask.

15. The face mask of claim 14 wherein the nose pad portions are also more lightly compacted than the central portion.

16. The face mask of claim 14 wherein the nose bridge portion includes ridges extending across the nose bridge portion for providing shape retention for the nose bridge portion of the face mask.

17. The face mask of claim 16 wherein the ridges include peaks and valleys and wherein the molded fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.

18. The face mask of claim 14 wherein the central portion of the face mask including ridges extending along the central portion for providing shape retention for the central portion of the face mask.

19. The face mask of claim 18 wherein the ridges include peaks and valleys and wherein the molded fibers forming the peaks and valleys of the ridges are compacted to substantially the same degree.