A respiratory mask body defining a first chamber and a second chamber is provided. In an exemplary embodiment, the mask body includes one or more inlet ports adapted to receive one or more breathing air source components in communication with the first chamber and a fluid intake communication ...
The breathing mask has an inlet air valve (4) formed as a modular assembly which can be inserted from the exterior of the mask into the gas channel (3). The module can be held by a stop connection in the gas channel. The valve can have a valve seat and a membrane (8) fixed at ...
1. A respiratory mask (10, 40, 60, 80, 90, 100) comprising: a mask frame (12); a cushion provided to the mask frame (12); a breathable gas inlet (20, 62) to conduct gas through the mask frame (12) to a breathing cavity formed between the... DREW JOANNE,VIRR ALEXANDER,CRUMBLIN...
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mask, and the air outlet end of the air outlet pipe is communicated with the air inlet of the filter; the air inlet pipe is provided with a light-weight one-way air inlet valve which is opened towards the air inlet of the mask; and the air outlet pipe is provided with a light-...
An inlet valve assembly, for use with a face mask in which the inlet opening has an outwardly projecting peripheral bead 2, comprises a connector member 3 having two flanges 5, 6 one on each side of the bead. The valve disc 13 is mounted on an annular supporting member 7 which has ...
A protective mask with an insert contains a rectangular fabric of a given size, looped at the ends of a zigzag seam, made of any known filtering nonwoven material corresponding to the characteristics, for example, Spandbond, with the possibility of forming four-layer mirrored accordion-like ...
The mask also includes check valves for inhalation regulation of the patient. Regarding placement upon a patient's face, the mask has a perimeter flange and a strap for securement upon the head of a patient.WILLIAM B. GRAHAM
The mask has an air inlet elbow which can be either free to rotate or locked in a position extending towards the top of a mask user's forehead.doi:WO2004078229 A2MACMILLAN, NICHOLAS, J.JONES, ALLAN, R., JR.BIRCHLER, TERRY, M.
Full face mask equipped with an inlet air filter comprising a transparent visor (2), a frame or strap (3), a preferably rubber gasket designed to guarantee water tightness and appropriate straps (4) to fit the mask on the face. The mask comprises a fitting (8) which engages on the ...