Steve R Pinkston

US Patent:

6837245, Jan 4, 2005

Filed:

Sep 24, 2002

Appl. No.:

10/253375

Inventors:

Kim I. Matheny - Leslie MO, US
Steve R. Pinkston - House Springs MO, US

Assignee:

Essex Manufacturing Company - St. Louis MO

International Classification:

A62B 900
A62B 902

US Classification:

12820521, 12820524

Abstract:

Control valve () for a user-donnable breathing device selectively switches from a normal breathing oxygen source to a pressurized emergency bottle. A valve body () has a normal oxygen source inlet and also an emergency source inlet for oxygen flow to the user of the device when donned. A poppet () permits normal source oxygen flow into the valve body (), normally keeping a piston () in a spring-biased cocked position spaced from a seal of the emergency bottle. A user-operated release permits the poppet to move to a position for blocking the normal source inlet but allowing the piston to become uncocked and so be driven by spring force to pierce the emergency bottle seal. Only emergency breathing oxygen from the bottle then flows to the user for emergency breathing. The device can be an escape hood for an aircraft passenger.

US Patent:

D3864634, Nov 18, 1997

Filed:

Jun 14, 1994

Appl. No.:

D/024416

Inventors:

James H. Garrard - Kirkwood MO
Steve R. Pinkston - House Springs MO

Assignee:

Essex Industries, Inc. - St. Louis MO

International Classification:

1206

US Classification:

D12218