Constant-current, rail-voltage regulated charging electronic detonator
First Claim
Patent Images
1. A pyrotechnic device comprising:
- a) a pyrotechnic electronic detonator for use in an electronic blasting system, said detonator comprising an igniter;
b) a firing energy storage module connected to said igniter;
c) a constant current charging module within said pyrotechnic device and connected to said firing energy storage module, said constant current charging module being configured and/or programmed to charge said firing energy storage module with a single pulse of uninterrupted substantially constant current until a predetermined rail voltage corresponding to the desired firing energy of said firing energy storage module is reached, such that the voltage of said firing energy storage module increases substantially linearly with respect to time during said charging; and
d) means for storing, for subsequent use in a countdown/fire sequence, a firing delay time that can be selected by a user from a plurality of values wherein zero is not an acceptable value.
4 Assignments
0 Petitions
Accused Products
Abstract
A method of dynamically- and continuously-variable rate asynchronous data transfer, such as for use in an electronic blasting system, may employ a device that transmits data including synchronization bits and bits conveying other information, and a device that ascertains the rate of transmission of the synchronization bits and receives the bits conveying the other information at the ascertained rate of transmission.
33 Citations
20 Claims
-
1. A pyrotechnic device comprising:
-
a) a pyrotechnic electronic detonator for use in an electronic blasting system, said detonator comprising an igniter; b) a firing energy storage module connected to said igniter; c) a constant current charging module within said pyrotechnic device and connected to said firing energy storage module, said constant current charging module being configured and/or programmed to charge said firing energy storage module with a single pulse of uninterrupted substantially constant current until a predetermined rail voltage corresponding to the desired firing energy of said firing energy storage module is reached, such that the voltage of said firing energy storage module increases substantially linearly with respect to time during said charging; and d) means for storing, for subsequent use in a countdown/fire sequence, a firing delay time that can be selected by a user from a plurality of values wherein zero is not an acceptable value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A pyrotechnic device comprising:
-
a) a pyrotechnic electronic detonator for use in an electronic blasting system, said detonator comprising an igniter; b) a firing energy storage module connected to said igniter; c) a constant current charging module within said pyrotechnic device and connected to said firing energy storage module, said constant current charging module being configured and/or programmed to charge said firing energy storage module with a single pulse of uninterrupted substantially constant current until a predetermined rail voltage corresponding to the desired firing energy of said firing energy storage module is reached, such that the voltage of said firing energy storage module increases substantially linearly with respect to time during said charging; and d) means for storing a firing delay time that has a non-zero value that can be selected by a user from a plurality of possible values. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A pyrotechnic device comprising:
-
a) a pyrotechnic electronic detonator for use in an electronic blasting system, said detonator comprising an igniter; b) a firing energy storage module connected to said igniter; c) a constant current charging module within said pyrotechnic device and connected to said firing energy storage module, said constant current charging module being configured and/or programmed to charge said firing energy storage module with a single pulse of uninterrupted substantially constant current until a predetermined rail voltage corresponding to the desired firing energy of said firing energy storage module is reached, such that the voltage of said firing energy storage module increases substantially linearly with respect to time during said charging; and d) means for programming said pyrotechnic device with a nonzero firing delay time. - View Dependent Claims (19, 20)
-
Specification