MINE BARRIER Russian patent published in 1996 - IPC

FIELD: creation of mine barriers for temporary isolation of headings in carrying out rescue operations, etc. SUBSTANCE: barrier has parachute-shaped dome made of airproof material with slings attached to dome base in middle of their length and divided at least into two bundles with fastening members for their attachment to middle part of heading side walls, flexible sealing hermetic pipe adjustable over perimeter length due to one or several folds of similar or various length made inside of pipe and held from unfolding under internal pressure by means of quick-split circular joints, flexible sealing corrugated member connected with its one end directly to dome base and with other end to flexible hermetic pipe. EFFECT: high efficiency. 3 dwg