Accession Number : ADD014778

Title :   Marine Mine Fire Control Mechanism.

Descriptive Note : Patent, filed 31 Dec 62, patented 20 Nov 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lyon, Robert J ; Lorenz, Richard L

Report Date : 20 Nov 1990

Pagination or Media Count : 32

Abstract : This patent discloses a control system for a magnetic submarine mine adapted to be fired automatically upon the approach of a vessel and in which the possibility of premature detonation of the mine by a minesweeper is substantially reduced. For example, some of the magnetic mines being laid in a particular mine field may be set so that after several actuations by a minesweeper a few of the mines will be exploded, the remaining mine field requiring a larger number of signals before detonation. By varying the number of signals before a mine is detonated the particular mine field after being swept is still considered lethal because many of the mines are left in the armed condition and others awaiting to be armed by subsequent minesweeping or the passage of vessels, as the case may be. Keywords: Magnetic underwater mines; Firing mechanisms ammunition; Patents.

Descriptors :   CONTROL SYSTEMS, DETONATIONS, FIRING MECHANISMS(AMMUNITION), MAGNETIC MINES, MINEFIELDS, MINESWEEPERS, MINESWEEPING, PATENTS, PREMATURE FUNCTIONING(ORDNANCE), SIGNALS, SUBMARINES, UNDERWATER MINES, WEAPONS

Subject Categories : Underwater Ordnance
      Undersea and Antisubmarine Warfare

Distribution Statement : APPROVED FOR PUBLIC RELEASE