NDLI: A Review of Three Patents Relating to the Development of Novel Inertia-Driven Mechanisms for Igniters On-Board Gun-Fired Munitions

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Murray, Richard Rastegar, Jahangir
Copyright Year	2010
Abstract	This is a review of a series of three patents issued for inertia igniters: devices which are generally used on-board gun-fired munitions to provide pyrotechnic initiation of a thermal battery. The igniters use the overwhelming firing acceleration to drive various mechanism components which provide event-sensing and a time time-delay in addition to the mechanical striking which ignites the pyrotechnic element of the igniter. The embodiments in the three patents progresses from a novel approach to achieve greater axial compactness while maintaining equivalent performance to a benchmark design, to a two-stage design which expands the range of performance of the event-sensing and time-delay characteristics of the devices, and finally to several novel approaches for producing arbitrarily long delays and the sensing of large impulses in highly compact multi-stage inertia-driven devices. The expansion of the range of operation of such devices is particularly important because prior to these innovative approaches, long delays or the practical measurement of large impulses required electronic methods and an additional tier of electrical power in addition to the thermal battery which is to be initiated.
Sponsorship	Design Engineering Division and Computers in Engineering Division
Starting Page	1217
Ending Page	1218
Page Count	2
File Format	PDF
ISBN	9780791844106
DOI	10.1115/DETC2010-28468
e-ISBN	9780791838815
Volume Number	Volume 2: 34th Annual Mechanisms and Robotics Conference, Parts A and B
Conference Proceedings	ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2010-08-15
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Design Pyrotechnics Munitions Patents Inertia (mechanics) Firing Delays Batteries Impulse (physics) Electricity (physics)
Content Type	Text
Resource Type	Article

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