Multi-dimensional cable shorting tool
| DWPI Title: Method for rendering safe detonator firing circuit for explosive device, involves preventing electrical current and energy from initiating detonation of detonator bridge that is located in detonator system |
| Abstract: A device for rendering safe a detonator firing circuit by short circuiting multiple conductors in the circuit includes a base portion and cable piercing members. The base portion has a cylindrical block and apertures for retentively receiving the cable piercing members. The cable piercing member has a first end to impinge on and penetrate a cable insulation when forcibly attached to an external surface of the cable. The cable piercing member has a low electrical resistance and impedance to generate a short circuit between conductors of the cable. Also, a method for rendering safe a detonator firing circuit of by short circuiting multiple conductor cables or a pigtail connector of a detonator system. |
| Use: Method for rendering safe detonator firing circuit for explosive device. |
| Advantage: The use of low resistance or impedance cable piercing devices or talons for creating parallel circuit paths with each respective initiator bridge to divert the majority of the firing current or energy away from an initiator for an explosive device. The use in counter improvised nuclear device missions, counter improvised explosive devices (IGD) or counter weapons of mass destruction (WMD) missions, thus, rendering safe such weapon. The talon attack provides emergency personnel with additional time to converge on a subsequent procedure for rendering safe a firing circuit. The brazing establishes a robust mechanical attachment and provides a foundation, thus, achieving a low electrical resistance path between each prong or cable piercing element. |
| Novelty: The method involves initiating a detonation that comprises a detonator system and a firing system in electrical communication over a transmission cable (14) extends between the firing system and detonator system. A cable piercing device (100) is provided and comprised of a base portion and cable piercing element includes low electrical resistance. The cable piercing device is applied at a point along the transmission cable and piercing the cable. A short circuit is created within the transmission cable between the firing system and the detonator system. The electrical current and energy is prevented from initiating a detonation of a detonator bridge that is located in the detonator system. The electrical current flow is diverted from the firing system through the short circuit through the cable piercing element that contacts conductor of the multiple conductors. |
| Filed: 8/16/2017 |
| Application Number: US15678638A |
| Tech ID: SD 13572.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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