Accession Number : AD0163879
Title : Elapsed Time Indicator.
Descriptive Note : Patent,
Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
Personal Author(s) : Porter,Frank K. , Jr. ; Sonjara,Boris
Report Date : 19 DEC 1972
Pagination or Media Count : 4
Abstract : The invention relates to timing or switching devices and more particularly pertains to elapsed time indicators or time delay switches of the hydromagnetic type wherein the period commences upon release of a piston which is magnetically coupled to a fixed element and moves through a viscous fluid toward the element.
Descriptors : (*TIME SWITCHES, *PATENTS), PISTONS, MAGNETIC MATERIALS
Subject Categories : Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE