F - Mech Eng,Light,Heat,Weapons – 42 – D
Patent
F - Mech Eng,Light,Heat,Weapons
42
D
342/47
F42D 1/055 (2006.01)
Patent
CA 2026220
The invention relates to a blasting apparatus for activating a plurality of electrical detonators after predetermined time delays. The blasting apparatus includes a plurality of remote electrical delay devices. Each device is linked to a detonator, and is arranged to be serially programmed with a timing signal, which originates from the central control unit and which determines the time delay. A bidirectional signal harness, having ends which terminate at I/O ports in the control unit, serially links the delay devices to the control unit. In the event of a fault of discontinuity occurring in the harness prior to programming of the delay devices, the discontinuity is detected and the direction of programming along the bidirectional harness is reversed so that those delay devices which, due to the break, cannot be programmed in the initial direction, are programmed with timing signals travelling along the signal line in the opposite direction. The invention extends to a method of activating a plurality of electrical detonators, as well as to the individual delay devices forming part of the blasting apparatus.
Atkins Raymond Catherall
Hodson Trevor Meredith
Marsh Michael John Camille
Csir
Ridout & Maybee Llp
LandOfFree
Timing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Timing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timing apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1919386