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US 2021/0274861 A1Published application
Filter mask
OwnerWayne Ernest Conradinventor
Life of this patent
Estimating the term…
Abstract
A filter mask for biological material has a mask body wherein the sealing member extends inwardly of the mask body.
Claims17
A filter mask comprising:
- (a) a mask body having a user side that faces towards a face of the user when the filter mask is worn by a user;
- and,
- (b) a sealing member provided on the user side of the mask body, wherein, when the filter mask is worn by a user, the sealing member abuts the face of the user whereby a closed volume that covers the mouth and nose of the user is provided, the closed volume having a perimeter wherein a portion of the sealing member extends inwardly of the perimeter into the closed volume.
A filter mask comprising:
- (a) a mask body having a user side that faces towards a face of the user when the filter mask is worn by a user wherein, when the filter mask is worn by a user, the filter mask abuts the face of the user whereby a closed volume that covers the mouth and nose of the user is provided;
- and,
- (b) a face plate that is permanently attached to the filter mask wherein, when the filter mask is worn by a user, the face plate overlies the eyes of the user whereby an open volume that overlies the eyes of the user is provided.
A filter mask comprising:
- (a) a mask body having a user side that faces towards a face of the user when the filter mask is worn by a user wherein, when the filter mask is worn by a user, the filter mask abuts the face of the user whereby a closed volume that covers the mouth and nose of the user is provided;
- and,
- (b) a face plate that is integrally formed as part of the mask body wherein, when the filter mask is worn by a user, the face plate overlies the eyes of the user whereby an open volume that overlies the eyes of the user is provided.
Dependencies are inferred from the claim text.