Respirator
First Claim
1. A disposable filter having a cup shape and dimensions such as to cover a wearer'"'"'s mouth and nose, said disposable filter being adapted to be received in a void area defined between a facepiece and a cover of a respirator, said facepiece having a cup shaped portion for sealingly engaging a face of the wearer and covering the mouth and nose of the wearer, said cover having a cup shape that is complementary to the cup shaped portion of said face piece, said cover being capable to detachably mate with said facepiece, wherein said filter comprises an apex portion, a side portion depending from said apex portion and a continuous flange portion surrounding said side portion, said flange portion projecting laterally from said side portion.
8 Assignments
0 Petitions
Accused Products
Abstract
A respirator comprising a facepiece having a cup shaped portion for sealingly engaging a face of a wearer and covering the mouth and nose of the wearer and a cover having a cup shape that is complementary to the cup shaped portion of the facepiece. The cover is capable to detachably mate with the facepiece to define with the facepiece a void area that is cup-shaped and suitable to receive a filter having a complementary shape. The filter includes an apex portion, a side portion depending from the apex portion and a continuous flange portion surrounding said side portion and projecting laterally therefrom.
279 Citations
30 Claims
- 1. A disposable filter having a cup shape and dimensions such as to cover a wearer'"'"'s mouth and nose, said disposable filter being adapted to be received in a void area defined between a facepiece and a cover of a respirator, said facepiece having a cup shaped portion for sealingly engaging a face of the wearer and covering the mouth and nose of the wearer, said cover having a cup shape that is complementary to the cup shaped portion of said face piece, said cover being capable to detachably mate with said facepiece, wherein said filter comprises an apex portion, a side portion depending from said apex portion and a continuous flange portion surrounding said side portion, said flange portion projecting laterally from said side portion.
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7. A respirator for a wearer having a face, a mouth and a nose, said respirator comprising:
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(a) a facepiece comprising first and second parts, said first part being more pliable than said second part, said second part comprising an apex portion, a side portion depending from said apex portion and a continuous surface extending laterally therefrom and encircling the mouth and nose of the wearer, said first part comprising a peripheral portion covering said continuous surface of said second part and extending inwardly for defining a continuous seal sealingly engaging the face of a wearer and encircling the nose and mouth of the wearer; and
(b) a cover comprising a continuous flange portion that is complementary to said peripheral portion of said first part, said cover being capable to detachably mate with said facepiece to define with said facepiece a void area;
said void area being cup-shaped for receiving a filter having a complementary shape.- View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A respirator for a wearer having a face, a nose and a mouth, said respirator comprising:
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(a) a facepiece comprising first and second parts and a continuous surface, said first part being more pliable than said second part, said second part comprising an apex portion, a side portion depending from said apex portion and a continuous surface extending laterally therefrom and encircling the nose and mouth of the wearer, said first part extending inwardly from said second part for defining a continuous seal sealingly engaging the face of a wearer and encircling the nose and mouth of the wearer;
(b) a cover comprising a continuous flange portion that is complementary to said continuous surface of said facepiece, said cover being capable to detachably mate with said facepiece to define with said facepiece a void area; and
(c) a filter comprising an apex portion, a side portion depending from said apex portion, and a continuous flange portion surrounding said side portion, said flange portion projecting laterally from said side portion, said filter being received in said void area. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification