Accession Number : AD0164099
Title : Drain Valve Having Auxiliary Seal.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Grundy,Douglas ; Wills,John E.
Report Date : 17 OCT 1972
Pagination or Media Count : 5
Abstract : The patent describes a drain valve having a spring-biased poppet which has a first seal on one end for closing an aperture and a second seal spaced apart from said first seal for closing said aperture while said first seal is being replaced, and means for selectively positioning said first and second seals in sealing relation with said aperture.
Descriptors : (*Valves, *Patents), Seals, Maintenance
Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
Distribution Statement : APPROVED FOR PUBLIC RELEASE