Temperature Compensated Pyrotechnic Delays.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent relates to an improved pyrotechnic delay system wherein temperature compensation is used to minimize or eliminate ambient temperature effects upon the burning rate and variability of the delay. The pyrotechnic delay column is surrounded with a volume of material which is easily ignited, high-heat producing, and fast burning relative to the burning rate of the delay column. Heat released by this material heats the body of the delay system, creating an elevated temperature environment for the delay column which is desirable to enhance the predictability of the delay time variable and to minimize adverse effects of the actual ambient temperature. Various configurations are possible in surrounding the delay column with the heat producing material.