초록 ▼

A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interfac

A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interface having a hose connector and a contoured opening adapted to fit against the mask shell. The contoured opening is slidable over the slot and is capable of being positioned on the mask shell. The mask seal has a flexible sidewall having distal and proximal ends and includes a rounded outer seal portion located on the distal end of the sidewall, a rounded inner seal portion located between the distal and proximal ends, and a support ring embedded in the sidewall. The inner seal portion is thicker than the outer seal portion and is non-continuous. The support ring includes at least one attachment portion adapted to engage the at least one attachment portion of the mask shell. The mask seal is capable of being removably affixed to the mask shell. The movable interface is capable of being positionally adjusted on the mask shell and the mask seal is capable of being inwardly deformed by contact with a face region of the user.

대표청구항 ▼

A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interfac

A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interface having a hose connector and a contoured opening adapted to fit against the mask shell. The contoured opening is slidable over the slot and is capable of being positioned on the mask shell. The mask seal has a flexible sidewall having distal and proximal ends and includes a rounded outer seal portion located on the distal end of the sidewall, a rounded inner seal portion located between the distal and proximal ends, and a support ring embedded in the sidewall. The inner seal portion is thicker than the outer seal portion and is non-continuous. The support ring includes at least one attachment portion adapted to engage the at least one attachment portion of the mask shell. The mask seal is capable of being removably affixed to the mask shell. The movable interface is capable of being positionally adjusted on the mask shell and the mask seal is capable of being inwardly deformed by contact with a face region of the user. wall member having an inner surface, a top, a bottom, first and second ends, said back wall disposed on said upright surface, said back wall member having an upper portion and a lower portion; a planar elongated roof member having a length extending laterally substantially the same distance as the length of said back wall, said roof member having a front and rear, said rear of said roof member affixed to said top of said back wall, said roof member extending from said back wall at a downward slope from 30 degrees-60 degrees; a planar elongated front wall member having an inner surface and a length extending laterally substantially the same distance as the length of said back wall, said front wall having a front and rear, said rear of said front wall attached to said bottom of said back wall, said front wall member extending from said back wall at an upward slope from 30 degrees-60 degrees, said front wall having an upper portion and a lower portion affixed to said front of said roof member forming a partially enclosed structure having first and second ends with said roof member and said back wall, said partially enclosed structure having an upper portion and a lower portion; a planar elongated horizontally disposed floor member having an inner surface and a length extending laterally substantially the same distance as the length of said back wall, said floor member being disposed within said lower portion of said partially enclosed structure between said front wall and said back wall, said floor member together with said lower portions of said front wall and said back wall defining an elongated lower ventilation passage below said floor member and open at the first and second ends of said structure; a planar elongated, horizontally disposed ceiling member having an inner surface and a length extending laterally substantially the same distance as the length of said back wall, said ceiling member being disposed within the upper portion of said partially enclosed structure affixed to said roof member and said back wall, said ceiling member, together with said roof member and said back wall defining an elongated upper ventilator passage above said ceiling member and open at the first and second ends of said structure; first and second planar end panels disposed vertically respectively at said first and second ends of said structure and perpendicularly affixed along the first and second ends of sa