초록 ▼

The invention is a mask that can be used as an aircraft passenger oxygen mask, survival and escape mask. The mask includes a connector ring for connecting an oxygen supply. The oxygen connector is held connected to the mask by a pin, but can be removed with the pin in place by utilizing a break-away

The invention is a mask that can be used as an aircraft passenger oxygen mask, survival and escape mask. The mask includes a connector ring for connecting an oxygen supply. The oxygen connector is held connected to the mask by a pin, but can be removed with the pin in place by utilizing a break-away ring mounted in and held in place in the mask by an O-ring. Valves in the mask and connector allow a person to breath in oxygen and exhale while the oxygen supply is connected, and to continue to breath in through a filter and exhale through a valve after the oxygen supply has been removed.

대표청구항 ▼

[ What is claimed:] [1.] A multi-purpose oxygen mask, comprising:a connector ring;a mask body for covering the nose and a part of the face sealed to said connector ring;a movable valve in said connector ring for allowing oxygen into the mask;a connector insertable into the connector ring for connect

[ What is claimed:] [1.] A multi-purpose oxygen mask, comprising:a connector ring;a mask body for covering the nose and a part of the face sealed to said connector ring;a movable valve in said connector ring for allowing oxygen into the mask;a connector insertable into the connector ring for connecting oxygen to the mask, said connector moving said movable valve into a position to admit oxygen into the mask when the connector is inserted into the connector ring;a pin and openings for said pin to secure the connector to said connector ring; anda break-away ring in said connector ring to allow removing the connector from the connector ring while said pin is in place.