Non-elastomeric respirator mask that has deformable cheek portions
First Claim
1. A respiratory mask that comprises:
- (a) mask body that lacks a rigid insert, that is non-elastomeric, and that is adapted for fitting over a person'"'"'s nose and mouth, the mask body having a nose portion, a chin portion, first and second cheek portions, and an axis that extends from the nose portion to the chin portion, the mask body being constructed to deform such that the first and second cheek portions can move towards each other about the axis when the mask body is held stationary and a force is exerted on the nose and chin portions;
(b) a harness that assists in supporting the mask on a wearer'"'"'s face; and
(c) one or more locations on the mask body for attaching one or more filter cartridges.
1 Assignment
0 Petitions
Accused Products
Abstract
A respiratory mask (10) that comprises a mask body (12) and a harness (21) that includes a carriage (22) and a strap (24). The mask body (12) lacks a rigid insert, is non-elastomeric, and is adapted for fitting over a person'"'"'s nose and mouth. The mask body (12) has a nose portion (14), a chin portion (16), first and second cheek portions (18 and 20), and an axis (32) that extends from the nose portion (14) to the chin portion (16). The mask body (12) is constructed to deform such that the first and second cheek portions (18 and 20) move towards each other about the axis (32). The carriage (22) is joined to the mask body (12), and the strap (24) is joined to the carriage (22) for supporting the mask body (12) over a person'"'"'s nose and mouth. When tension is applied to the strap (24) and an opposing force acts at the nose and chin portions of the mask body, the first and second cheek portions (18, 20) exhibit movement about the axis (32) towards each other. The respirator mask is beneficial in that it is lightweight, easy to manufacture, and maintains a good fit to a person'"'"'s face.
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Citations
33 Claims
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1. A respiratory mask that comprises:
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(a) mask body that lacks a rigid insert, that is non-elastomeric, and that is adapted for fitting over a person'"'"'s nose and mouth, the mask body having a nose portion, a chin portion, first and second cheek portions, and an axis that extends from the nose portion to the chin portion, the mask body being constructed to deform such that the first and second cheek portions can move towards each other about the axis when the mask body is held stationary and a force is exerted on the nose and chin portions; (b) a harness that assists in supporting the mask on a wearer'"'"'s face; and (c) one or more locations on the mask body for attaching one or more filter cartridges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A mask body that lacks a rigid insert, that is non-elastomeric, and that is adapted for fitting over a person'"'"'s nose and mouth, the mask body comprising a nose portion, a chin portion, first and second cheek portions, and an axis that extends from the nose portion to the chin portion, the mask body further comprising one or more locations for attachment of one or more filter cartridges and being constructed to deform such that the first and second cheek portions can move towards each other about the axis when a force is exerted.
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32. A method of making a respiratory mask, which method comprises:
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forming a mask body not weighing more than 35 g from a non-elastomeric plastic material that has a flexural modulus of greater than 500 MPa, the non-elastomeric plastic material being formed to a cup shape that has an average thickness less than 2 mm and that is adapted for fitting over a person'"'"'s nose and mouth without inclusion of a rigid insert but with an integrally-formed nose portion, chin portion, central portion, and first and second cheek portions; securing a harness to the mask body; and providing one or more locations in the mask body for the securement of one or more filter cartridges. - View Dependent Claims (33)
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Specification