| 摘要 |
A disarm mechanism to maintain a safe work area for individuals that may be working in such area which allows for the remote disarming of an article of explosive equipment by remotely shifting a switch of an explosive circuit to an off or non-operative position. Said switch is connected in series with a detonator and along with an explosive charge housed within an extinguishant container from which extinguishant would normally be dispelled when the explosive circuit is activated. After switching, a lock-out device is secured to the disarm mechanism such that the switch cannot be shifted to the on or operative position without removal of such lockout. Visual indicia is provided to alert the operator as to the position of the control switch. To further insure disarm and safety within the safe area, a source of expelling pressure communicating with the extinguishant container and available for activation when the switch is in the on or active position, is prevented from communicating with the extinguishant container when said switch is shifted to the off position. The remote shifting means is electrically isolated from the switch, so that no path is created for electric charges to flow from the safe environment, in which the switch is located, to any external hazardous environment.
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