Dale Lee Walker

US Patent:

49016440, Feb 20, 1990

Filed:

Apr 3, 1989

Appl. No.:

7/332851

Inventors:

William R. Nevins - Ridgecrest CA
Neal M. Lundwall - Ridgecrest CA
Dale L. Walker - Ridgecrest CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F42B 1300

US Classification:

102293

Abstract:

An apparatus for marking safe areas in an explosive hazard environment such s a minefield. The marking apparatus is carried and deposited into a minefield with explosive cloud forming fuel. When the explosive cloud is set off, mines under the cloud are exploded by the overpressure which simultaneously activates a timer securing the apparatus lid. The lid is pushed away by the spring-like, coiled telescoping members which then fully extend beyond the apparatus housing. The tapered ends of each extended telescoping member bear an electroluminescent light stick for nighttime apparatus and location marking, and a member length flag for daytime marking.