Electromagnetic launcher with augmenting breech

Details Electromagnetic launcher with augmenting breech Electromagnetic launcher with augmenting breech

2006-09-01

2010-06-08

Johnson, Stephen M (Department: 3641)

Ordnance

Accelerating

C089S014300, C124S003000

Reexamination Certificate

active

07730821

ABSTRACT:
In an exemplary electromagnetic launcher, a housing with breech and muzzle is slidably supported in a carriage supported on a trunnion. First and second electrical contacts are mounted in the carriage toward an axis of the trunnion. The first and second contacts are electrically connectable to receive electrical power from an electrical power supply. First and second augmentation conductors are disposed aft of the trunnion and are electrically connected to the first and second electrical contacts. First and second main conductors extend from the breech toward the muzzle. A current cross-over connection is disposed toward the breech and electrically connects the first and second augmentation conductors with the first and second main conductors, respectively. The first and second electrical contacts and the first and second augmentation conductors may be engaged in slidable electrical contact over a portion of the first and second augmentation conductors, thereby accommodating recoil motion.

REFERENCES:
patent: 4924750 (1990-05-01), Neugebauer
patent: 5375504 (1994-12-01), Bauer
patent: 6766793 (2004-07-01), MacDougall
Auburn Univeristy ECE Department, “Railgun Theory”, http://eng.auburn.edu/department/ece/railgun/theory.htm.
Matthew E. Massey, “Railgun Theory”, http://www.matthewmassey.com/RailgunTheory.pdf.
W.A. Walls, W.F. Weldon, S.B. Pratap, M. Palmer, and LT David Adams, USN, “Application of Electromagnetic Guns to Future Naval Platforms”, IEEE Transactions on Magnetics, Jan. 1999, pp. 262-267.
LCDR David Adams, USN, “Naval Rail Guns Are Revolutionary”, http://edusworld.org/ew/ficheros/2004/railguns.pdf.
Wikipedia, “Railgun”, http://en.wikipedia.org/wiki/Railgun.

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