Patent ID: 8939146
Filing Date: 2015-01-27
Classification: A42B,A62B

Abstract:
1. An apparatus to extract breathable air from snow, the apparatus comprising: a protective helmet configured to protect at least a part of a user's head, the protective helmet defining an inner cavity and having an outer surface; an air-permeable extraction assembly integrated with the protective helmet, the air-permeable extraction assembly comprising at least one air intake cavity disposed on the outer surface of the protective helmet, one or more air-permeable membranes disposed over the at least one air intake cavity, and an air transfer channel, wherein the at least one air intake cavity comprises a first air intake cavity and a second air intake cavity and the air transfer channel comprises an enclosed channel that transfers air between the first air intake cavity and the second air intake cavity; and a mouthpiece in fluid communication with the at least one air intake cavity, the mouthpiece drawing intake air through the at least one air intake cavity in response to inhalation by a user.