Patent ID: 6997179
Filing Date: 2006-02-14
Classification: A62B

Abstract:
1. A protective hood having a neck seal for use in an emergency breathing apparatus having an interior and an exterior; the neck seal comprising: a protective hood having a base opening for fitting over a user's head said opening having circumferentially connected thereabout, an annular sheet of elastomeric material having a substantially central aperture for donning over a person's head, the substantially central aperture being sized appropriately for snug fitting around the person's neck so as to be sufficiently tight to prevent passage between the person's neck and the neck seal of fluid materials without choking the person; wherein the the annular sheet of elastomeric material is coated at least in part with parylene, to thereby prevent passage through the elastomeric material of NBC/CBR materials; and wherein the central aperture of the annular sheet has a contiguous collar extending from the central aperture's inner edge for forming a fluid-tight interface surface with the wearer's neck.