Personnel detection and protection systems for use in undergroun

Details Personnel detection and protection systems for use in undergroun Personnel detection and protection systems for use in undergroun

1986-08-18

1988-02-02

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 12, 340565, 367 93, 405302, E21D 2312

Patent

active

047225742

ABSTRACT:
A personnel detection and protection system comprises sensor means for detecting the presence of personnel in a prohibited operational zone, and for deriving signal means indicative of such a detected presence, and control means responsive to the deriving of such signal means to control the operation or movement of equipment in the prohibited zone.

REFERENCES:
patent: 3489460 (1970-01-01), Cooper
patent: 3812929 (1974-05-01), Farque 180167

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