Accession Number : ADD010016
Title : Purge Valve for Diver's Mask.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Segrest,Steven F
Report Date : 30 Dec 1980
Pagination or Media Count : 4
Abstract : A purge valve for full face masks or helmets includes a base member fixed in the mask wall and having passages opening in a flat, annular valve seat surface. A manually operable valve member includes an outer cylindrical wall, an inner cylindrical wall reentrant from an end wall and is axially slidable on a stem extending from the base member against the action of a compression spring nested between the cylindrical walls. This invention relates to underwater diving equipment and more particularly to an improved purge valve for use in removing accumulated water from a diver's mask or helmet.
Descriptors : *Patents, *Safety valves, *Protective masks, *Diver equipment, Helmets, Walls, Cylindrical bodies, Springs, Purging, Water, Accumulation, Removal
Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
Life Support Systems
Distribution Statement : APPROVED FOR PUBLIC RELEASE