Inventors:
James W. Teetzel - York ME, US
Gary M. Lemire - Lee NH, US
Daniel A. Desrosiers - Epping NH, US
Mark A. Hansen - Virginia Beach VA, US
Assignee:
Wilcox Industries Corp. - Newington NH
International Classification:
A62B 7/10
A62B 7/04
A62B 9/00
A62B 18/10
F16K 31/02
A61M 15/00
A61M 16/00
US Classification:
12820512, 12820125, 12820426, 12820522, 12820128, 12820423, 12820421, 12820521, 12820226, 12820528, 12820429, 12820418, 12820529, 12820527, 12820024
Abstract:
A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.