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US 6,357,440 B1Granted
Pliable respiratory mask
AssigneeMallinckrodt Inc.
InventorsGary L. Hansen, Nicole Denise Bloom
Life of this patent
Estimating the term…
Abstract
A pliable respiratory mask is provided according to the invention. The pliable respiratory mask includes a mask shell adapted to fit over a portion of a face of a person, the mask shell being formed of a pliable material selected from the group consisting of a woven fabric, a non-woven fabric, a non-woven paper, or a pliable foam material, a hose connector extending through the pliable material of the mask shell and fastened to the pliable material, and an attachment for securing the shell over a portion of the person's face.
Claims8
A pliable respiratory mask, comprising:
- a mask shell adapted to fit over a respiratory orifice on a portion of a face of a person, said mask shell being formed of a pliable gas permeable material selected from the group consisting of a woven fabric, a non-woven fabric, a non-woven paper, or a pliable foam material, said pliable gas permeable material defining a vent portion through which exhaled air may escape from the mask, said vent portion being the only form of vent;
- a hose connector extending through said pliable material of said mask shell and fastened to said pliable material;
- at least one attaching member for securing the mask shell over a portion of the person's face;
- and
- a gas impermeable coating extending over a portion of said mask shell, wherein portions of said pliable gas permeable shell material are left uncoated to define vent portions through which exhaled air may escape from said mask.
2 more elements
A pliable respiratory mask, comprising:
- a mask shell adapted to fit over a portion of a face of a person, said mask shell being formed of a pliable gas permeable material selected from the group consisting of a woven fabric, a non-woven fabric, a non-woven paper, or a pliable foam material;
- a hose connector extending through said pliable material of said mask shell and fastened to said pliable material;
- a gas impermeable coating over a predetermined portion of said mask shell;
- and
- at least one attaching member for securing the mask shell over a portion of the person's face.
2 more elements
Dependencies are inferred from the claim text.