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US 2014/0150780 A1Published application
Protective breathing apparatus inhalation duct
AssigneeB/E Aerospace, Inc.
InventorsTimothy Steger, Kevin Bennett, Stephen Eastman
Life of this patent
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Abstract
An improved protective breathing apparatus having a vent hole or one way valve incorporated into the inhalation duct so that the breathing apparatus can safely vent and release a pressure differential during the opening of the storage bag from vacuum storage. The use of an air pressure relief mechanism prevents the rupture of the duct and preserves the integrity of the device.
Claims4
A self-contained, closed circuit breathing apparatus, comprising:
- an inhalation duct;
- an exhalation duct;
- a source of breathable gas under vacuum;
- and
- a hole in the inhalation duct at an interface with the inhalation duct and the source of breathable gas under vacuum for preventing deformation of the inhalation duct in a transition between vacuum and ambient.
2 more elements
Dependencies are inferred from the claim text.