Mine ventilation structure

Details Mine ventilation structure Mine ventilation structure

1997-11-21

1999-03-09

Joyce, Harold

Ventilation

Mine

With partition means

405132, 405153, E21F 114

Patent

active

058792317

ABSTRACT:
A mine ventilation structure used to block a passageway or to prevent mixture of ventilation air at the intersection of two passageways. The passageway has sidewalls and a ceiling. The ventilation structure is formed of panels, each of the panels having spaced apart wire grids with an insulation core. The grids are interconnected with strut wires passing through the insulation core and forming a truss system. A layer of concrete is applied as gunite or shotcrete to the panels embedding the strut wires and covering the wire grids. The layer of concrete extends beyond the margins of the ventilation structure onto the sidewalls and ceiling of the passageway forming a monolithic structure sealed in the passageway that is virtually impervious to air.

REFERENCES:
patent: 4096702 (1978-06-01), Burton
patent: 4104842 (1978-08-01), Rockstead et al.
patent: 4393636 (1983-07-01), Rockstead et al.
patent: 4418463 (1983-12-01), McNeill
patent: 4516879 (1985-05-01), Berry et al.
patent: 4621951 (1986-11-01), Dewson
patent: 5174682 (1992-12-01), Whitfield
patent: 5466187 (1995-11-01), Kennedy et al.

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