Patent ID: 6619285
Filing Date: 2003-09-16
Classification: A62B,Y10T

Abstract:
An automatically closing ambient air device comprising:a housing having a generally conical passageway having a conical wall extending from about a vertex end toward a base end, said housing containing an inlet for the flow of fluid from an ambient environment into said generally conical passageway and an outlet for the flow of fluid from said generally conical passageway to a user; wherein valve means is arranged to close fluid flow from said generally conical passageway through said outlet to said user, said closing of fluid flow being actuated by a gravitational force imposed by a weighted element in response to a change in the spacial orientation of said conical wall of said generally conical passageway to level; said housing comprising means to manually close fluid flow from said generally conical passageway through said outlet to said user, independent of spacial orientation of said conical wall.