Ignition Or Detonation Circuit Patents (Class 102/206)
  • Patent number: 11506475
    Abstract: An electronic fuze for a projectile, the electronic fuze including at least one electronic board arranged in a housing of the body of the projectile, the electronic board being encapsulated in a block of protective material. The electronic board is secured to at least one support rod partially encapsulated in the block of protective material. The support rod is inserted through a hole in a wall integral with the body of the projectile, and the support rod is secured to the wall by a fastening device. A first decoupling devices is interposed between the block of protective material and the wall and a second decoupling device is interposed between the fastening device and the wall. The electronic board is located towards a front part of the projectile and the wall is located towards a rear part of the projectile.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: November 22, 2022
    Assignee: NEXTER MUNITIONS
    Inventor: Julien Pavier
  • Patent number: 11428081
    Abstract: A method and system for a perforating gun having a box by pin perforating gun system using swaged down gun bodies. The box by pin perforating gun system may include a removable cartridge to hold a detonator with a switch and an insulated charge holder as an electrical feed-through.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: August 30, 2022
    Assignee: Hunting Titan, Inc.
    Inventors: Richard Wayne Bradley, William Richard Collins, John W. Jordan, Andy Lane, Dale Langford, Charles Levine, Faraidoon Pundole
  • Patent number: 11377935
    Abstract: A wellbore perforating system including a multi-component universal initiator. The universal initiator is a “plug and play” initiator able to accommodate a wide range of perforating gun system.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 5, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David Austin, II, Kenneth Goodman, Allyn Pratt, Pedro Alejandro Hernandez Lopez, Joseph George
  • Patent number: 11359898
    Abstract: A wireline release tool for downhole intervention, the tool including a housing having an electrical input and an electrical output; a pass-through switch located inside the housing and electrically connected between the electrical input and the electrical output; and a circuit limiter device located inside the housing and electrically connected between the electrical input and the electrical output. The pass-through switch is connected in parallel to the circuit limiter device, between the electrical input and the electrical output.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 14, 2022
    Assignee: GEODYNAMICS, INC.
    Inventors: Brad Perry, Roger Archibald
  • Patent number: 11353307
    Abstract: Logging apparatus, methods and electronic detonators are presented for logging data, wherein the logger transmits read request messages to preprogrammed electronic detonators without transmitting any delay programming messaging, receives and stores electronic detonator data from a given one of the preprogrammed electronic detonators, and sends a verify command to cause the detonator to update its status flag to prevent the given electronic detonator from responding to subsequent read request messages.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: June 7, 2022
    Assignee: AUSTIN STAR DETONATOR COMPANY
    Inventors: Larry S. Howe, Bryan E. Papillon, Pavel Krivanek, Gimtong Teowee
  • Patent number: 11243058
    Abstract: The system and method for accurately determining range-to-go for the command detonation of a projectile. Using dual laser and/or radio frequency detectors on the tail and on the nose of a spinning projectile to determine the range-to-go, time-to-go, or lateral offset from the projectile to the target.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: February 8, 2022
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael J. Choiniere, Bruce Winker
  • Patent number: 11029135
    Abstract: Logging apparatus, methods and electronic detonators are presented for logging data, wherein the logger transmits read request messages to preprogrammed electronic detonators without transmitting any delay programming messaging, receives and stores electronic detonator data from a given one of the preprogrammed electronic detonators, and sends a verify command to cause the detonator to update its status flag to prevent the given electronic detonator from responding to subsequent read request messages.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 8, 2021
    Assignee: Austin Star Detonator Company
    Inventors: Larry S. Howe, Bryan E. Papillon, Pavel Krivanek, Gimtong Teowee
  • Patent number: 10982920
    Abstract: A wireless firearm system is disclosed. The wireless firearm system includes a device computer processor operable to execute a set of computer-readable instructions. Attached to the device computer process is a device memory operable to store the set of computer-readable instructions. The device memory is operable to receive a first set of firearm values from a first firearm transmitter, receive a firing sequence command, and determine a second set of firearm values based at least in part on the firing sequence command. The device memory can determine the first set of firearm values is less than the second set of firearm values and communicate the firing sequence command to a firearm memory.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 20, 2021
    Assignee: KUDZU ARMS, LLC
    Inventor: Christopher G. Bailey
  • Patent number: 10890426
    Abstract: A detonator for use in a detonating system, which detonator includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one of a light, acoustic, vibratory, magnetic or electrical signal event, and an electronic timer which executes a timing interval in response thereto.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: January 12, 2021
    Assignee: DETNET SOUTH AFRICA (PTY) LTD
    Inventors: Albertus Abraham Labuschagne, Andre Louis Koekemoer, Christopher Malcolm Birkin, Craig Charles Schlenter, Elmar Lennox Muller
  • Patent number: 10605578
    Abstract: The present disclosure describes an electronic ignition circuit (“EIC”) for controlling at least one detonator. The EIC may include a protection circuit, an input circuit coupled to the protection circuit, a logic circuit electrically coupled to the input circuit, and an ignition circuit electrically coupled to the logic circuit. The protection circuit may include at least one of a fuse, a circuit breaker and an automatic switch. The logic circuit may include an answer back circuit, and a switching circuit adapted to switch to the next detonator or igniter. The ignition circuit may include a capacitor charging circuit, a capacitor discharge circuit to discharge a firing capacitor through a fuse head, and a shot detection circuit adapted to measure a voltage across the firing capacitor before discharging through the fuse head and to measure a voltage after discharging through the fuse head.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 31, 2020
    Assignee: DynaEnergenetics Europe GmbH
    Inventors: Andreas Robert Zemla, Sascha Thieltges, Frank Graziola
  • Patent number: 10540898
    Abstract: A dynamic human machine interface system includes a mission commander application (MCA) unit including a control processor, the MCA active on one vehicle of a plurality of mission member vehicles, the MCA unit in communication with a data store, the control processor accessing executable instructions that cause the control processor to direct operations of components of the MCA unit, an alternate scenario evaluation unit accessing at least one of mission parameter records and flight member data records in the data store to recalculate mission parameters, a dynamic video interface unit to render the recalculated mission parameters on a mission control dashboard (MCD), the MCD presented to the mission commander on a display unit of the one vehicle, the MCD including a plurality of display pane areas selectable by a user interaction with an interactive interface, and each display area configurable by the user interaction to change content of the display pane.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: January 21, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: So Young Kim, Aaron Williams, Mark Snyder, Christopher Scott Sensing, Samuel Levulis, Jeffrey Robert Winters, Sundar Murugappan, Courtney Albers, Jennifer Ruth Cooper, Michael Eric Figard, Alexander Kaber Carroll
  • Patent number: 10422615
    Abstract: A military standard-1760 (MIL-STD-1760) interface bridge for storing mission planning data can include a housing, a translator device, a ground support equipment (GSE) connector, and non-volatile memory. The housing can include a MIL-STD-1760 connector on a first end and a weapon side connector on a second end. The translator device can translate a MIL-STD-1553 remote terminal (RT) protocol to a weapon side signaling protocol and translate the weapon side signaling protocol to the MIL-STD-1553 RT protocol. The GSE connector can be coupled to the housing and translator device for downloading mission planning data for a weapon. The non-volatile memory can be configured to store the mission planning data.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: September 24, 2019
    Assignee: Raytheon Company
    Inventors: Charles F. Huber, Bradley Bomar Hammel
  • Patent number: 10395796
    Abstract: A flat cable that includes a plurality of cores each including one insulated wire and/or a plurality of insulated wires that are twisted together, the cores being lined up in a cable width direction, which is orthogonal to a longitudinal direction of the insulated wires; a sheath that collectively covers the plurality of cores; and a space that is surrounded by an outer surface of one of the plurality of cores, an outer surface of another one of the plurality of cores that is adjacent to the one of the plurality of cores, and an inner surface of the sheath.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: August 27, 2019
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kenta Kobayashi, Makoto Higashikozono, Hirokazu Komori
  • Patent number: 10325010
    Abstract: Collating text strings having Unicode encoding includes receiving two text strings S=s1s2 . . . s and T=t1t2 . . . tm. When the two text strings are not identical, there is a smallest positive integer p for which the two text strings differ. The process looks up the characters sp and tp in a predefined lookup table. If either of these characters is missing from the lookup table, the collation of the text strings is determined using the standard Unicode comparison of the text strings spsp+1 . . . sn and tptp+1 . . . tm. Otherwise, the lookup table assigns weights vp and wp for the characters sp and tp. When vp?wp, these weights define the collation order of the strings S and T. When vp=wp, the collation of S and T is determined recursively using the suffix strings sp+1 . . . sn and tp+1 . . . tm.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 18, 2019
    Assignee: Tableau Software, Inc.
    Inventors: Thomas Neumann, Viktor Leis, Alfons Kemper
  • Patent number: 10267612
    Abstract: A booster component which includes a booster housing for a booster explosive material and a printed electronic circuit which is associated with the housing and which includes a module for harvesting energy emitted by an energy source, a storage device for storing energy harvested by the module, an igniter and a circuit, powered at least by energy drawn from the storage device and responsive to a control signal for firing the igniter.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: April 23, 2019
    Assignee: Detnet South Africa (Pty) Ltd
    Inventors: Elmar Muller, Francois Venter
  • Patent number: 10267613
    Abstract: A detonator system wherein a detonator is connected via a down-hole harness to a bus extending from a blast controller and wherein a component is connected in series with the down-hole harness to limit leakage current in the harness to a level which can be accommodated by the blast controller.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 23, 2019
    Assignee: Detnet South Africa (Pty) Limited
    Inventor: Craig Charles Schlenter
  • Patent number: 10228226
    Abstract: A monitoring device and system are provided for monitoring normal sequence of an initiation. The device includes at least one sensor in a region of an explosive charge and/or in a region of at least one ignition device for the explosive charge of the munitions system, and also a control device for evaluating output signals of the sensor with the control device connected to at least one ignition device in a controlling manner on a basis of the evaluation. At least one sensor is arranged at an output of a first ignition device for subdetonative initiation of the explosive charge. The control device is connected to a further ignition device and enables or inhibits it on a basis of a signal supplied by the sensor and assessed in the control device, and at least one sensor is designed for sensing pressure, temperature, light, electrical current or changing of mechanical states.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: March 12, 2019
    Assignee: TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH
    Inventors: Johann Florian, Markus Graswald, Raphael Gutser
  • Patent number: 10089282
    Abstract: Collating text strings having Unicode encoding includes receiving two text strings S=s1s2 . . . sn and T=t1t2 . . . tm. When the two text strings are not identical, there is a smallest positive integer p for which the two text strings differ. The process looks up the characters sp and tp in a predefined lookup table. If either of these characters is missing from the lookup table, the collation of the text strings is determined using the standard Unicode comparison of the text strings spsp+1 . . . sn and tptp+1 . . . tm. Otherwise, the lookup table assigns weights vp and wp for the characters sp and tp. When vp?wp, these weights define the collation order of the strings S and T. When vp=wp, the collation of S and T is determined recursively using the suffix strings sp+1 . . . sn and tp+1 . . . tm.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 2, 2018
    Assignee: Tableau Software, Inc.
    Inventors: Thomas Neumann, Viktor Leis, Alfons Kemper
  • Patent number: 10018487
    Abstract: The present disclosure provides methods and systems for initiating sealed sensor units in the field. A packaged sensor unit may include a sensor module, an activation mechanism and an internal battery, all situated in a sealed enclosure. In some cases, the sealed enclosure may be devoid of any externally accessible switches. A pre-defined triggering stimulus may be applied to the packaged sensor unit, and the pre-defined triggering stimulus may be detected via the activation mechanism. In response to the activation mechanism detecting the pre-defined triggering stimulus, the internal battery may be connected to the sensor module. Prior to detecting the pre-defined triggering stimulus, both the sensor module and the activation mechanism may draw no power from the internal battery of the packaged sensor unit. In some cases, the activation mechanism, once activated, irreversibly couples the power supply to the sensor module.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: July 10, 2018
    Assignee: Honeywell International Inc.
    Inventors: Ramakrishna Budampati, Jeff Becker
  • Patent number: 9963398
    Abstract: An energy transfer device (10) is provided that is capable of transferring the energy output from one pyrotechnic device (52) to another device (78) for initiating firing thereof. Device (10) comprises a device housing (12) in which a deformable device insert (14) is received. Device insert (14) comprises a central passageway (34) for transmitting the output from a pyrotechnic device (52), including energy, gasses, and/or solids, to another pyrotechnic device (78). The passageway (34) conducts the pyrotechnic device output to a precise location on the second pyrotechnic device (78) where firing is most effectively initiated. The energy transfer device (10) may be employed as a part of a tool (44) used in well completion operations.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 8, 2018
    Assignee: FIKE CORPORATION
    Inventors: William Greeley, Raivo Kull, Ed Soohoo
  • Patent number: 9958247
    Abstract: Logging apparatus, methods and systems are presented for logging data from electronic detonators one at a time, in which a logger is placed into an automatic logging mode and begins transmitting read request messages in repetitive fashion until a response is received from a single connected electronic detonator, whereupon the logger obtains serial ID number and potentially other data such as a delay from the electronic detonator, after which the logger automatically proceeds without further user button presses to again initiate read request messages, by which a user can sequentially connect and disconnect a number of electronic detonators one at a time for quick expeditious logging. Also presented are automatic electronic detonator programming apparatus and processes in which a logger is placed into an automatic programming mode and the user connects electronic detonators one at a time for automatic or semi-automatic programming of delay times from internal memory.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 1, 2018
    Assignee: Austin Star Detonator Company
    Inventors: Gimtong Teowee, Bryan E. Papillon, Larry S. Howe
  • Patent number: 9827938
    Abstract: The present invention discloses embodiments of an apparatus, system and related method for diagnosing initiators in air bag systems. An embodiment of the system comprises a diagnostic circuit electrically connected between acceleration switches and one or more squib, that is user-activated via a momentary switch, and with user-feedback, wherein a user can diagnose the health of the one or more squib with no power drain while inactive. An embodiment of a method related to the system comprises activating a momentary switch, completing a circuit whereby a diagnostic circuit may function, indicating to the user that the diagnostic circuit is functioning, regulating the current into the diagnostic circuit so that the squib does not fire, boosting the signal to a window comparator, detecting the desired voltage by the window comparator, giving feedback to the user that the voltage is good, too high, or too low.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: November 28, 2017
    Assignee: SCHROTH Safety Products LLC
    Inventors: Mario Schnetger, Ray Garcia, Craig William White, Ahad M. Zadeh, Stefan Meier-Arndt
  • Patent number: 9696126
    Abstract: A signal is injected into a wired series of detonators to obtain a reflected signal which represents a validated status of the system. The reflected signal is compared to a second reflected signal, generated in a similar way, some time later; to detect factors which affect the validated status of the system.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: July 4, 2017
    Assignee: DETNET SOUTH AFRICA (PTY) LTD
    Inventor: Riaan Lingenfelder Van Wyk
  • Patent number: 9625244
    Abstract: A timing module for use in a detonating system which includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one shock tube event and an electronic timer which executes a timing interval in response thereto.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: April 18, 2017
    Assignee: DETNET SOUTH AFRICA (PTY) LTD.
    Inventors: David Bruce Harding, Albertus Abraham Labuschagne, Andre Louis Koekemoer, Christopher Malcolm Birkin, Craig Charles Schlenter
  • Patent number: 9599741
    Abstract: An antenna 3 of an electromagnetic probe used in investigation of geological formations GF surrounding a borehole WBH comprises a conductive base 31 and an antenna element 32. The conductive base 31 comprises an opened non-resonant cavity 33. The antenna element 32 is embedded in the cavity 33 and goes right through the cavity. The antenna element 32 is isolated from the conductive base 31. The antenna element 32 is coupled to at least one electronic module via a first 34A and a second 34B port, respectively. The electronic module operates the antenna so as to define either a substantially pure magnetic dipole, or a substantially pure electric dipole.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 21, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Matthieu Simon
  • Patent number: 9557363
    Abstract: A large scale automated test system employs one or more relay boxes that contain and support one or more relay boards. Each relay board is operated to selectively communicate an item being designed, for example a cell phone, an automobile, or an aircraft, with two or more electrical components being considered in the design of the item to evaluate the performance of each electrical component in the item being designed.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 31, 2017
    Assignee: The Boeing Company
    Inventors: James C. Ouderkirk, Adam L. Iseman, Ryan T. Greenland, Kenneth L. Kildall
  • Patent number: 9476685
    Abstract: Detonation control modules and detonation control circuits are provided herein. A trigger input signal can cause a detonation control module to trigger a detonator. A detonation control module can include a timing circuit, a light-producing diode such as a laser diode, an optically triggered diode, and a high-voltage capacitor. The trigger input signal can activate the timing circuit. The timing circuit can control activation of the light-producing diode. Activation of the light-producing diode illuminates and activates the optically triggered diode. The optically triggered diode can be coupled between the high-voltage capacitor and the detonator. Activation of the optically triggered diode causes a power pulse to be released from the high-voltage capacitor that triggers the detonator.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 25, 2016
    Assignee: Los Alamos National Security, LLC
    Inventors: Jonathan L. Mace, Gerald J. Seitz, Lawrence E. Bronisz
  • Patent number: 9451646
    Abstract: Multiple mobile cellular network (MCN) communication systems can be networked together to form a network of MCN communication systems (NOM). Each MCN communication system within the NOM can operate as an independent cellular network to provide communications between user equipment within a covered area. When a UE in one MCN of the NOM moves into a different MCN of the NOM, the corresponding MCN communication systems can handover the UE. The UE can also be handed over between MCN communication systems when the MCN communication systems move.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: September 20, 2016
    Assignee: Oceus Networks Inc.
    Inventors: Pamela Schemagin, Vincent Graffagnino, Jouko Rytilahti, Ian Gibbs, James McGovern, John Green, Kyle Collins
  • Patent number: 9450684
    Abstract: A system, method and apparatus for controlling buried devices by means of a very low frequency (VLF) modulated magnetic field capable of providing through-the-earth (TTE) communications. The system comprises a plurality of VLF transmission loop antennas positioned to cover a desired coverage area and configured to transmit a magneto-inductive signal to a desired operating depth. One or more VLF receivers are configured to receive one or more magneto-inductive signals from the one or more VLF transmission antennas. The VLF receivers are operatively connected to the buried devices, and configured to output a control signal thereto in response to the magneto-inductive signals. The plurality of VLF transmission loop antennas may be square or rectangular antennas positioned in an array to cover the desired coverage area, the VLF transmission loop antennas sized and sufficiently powered to transmit the magneto-inductive signal to the desired operating depth.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: September 20, 2016
    Assignee: VITAL ALERT COMMUNICATION INC.
    Inventors: Michael James Roper, Peter Kwasniok, Vladimir Puzakov
  • Patent number: 9366518
    Abstract: A system for triggering includes a plurality of electronic detonator assemblies (11), where each electronic detonator assembly (11) is connected to a leading wire (12) linked to a local fire control unit (12). At least one of the local fire control units (13S) includes an electronic synchronization module (14) connected to a leading wire linked to a master local fire control unit (13M), which is one of the local fire control units (13). The system is suitable for use in triggering a plurality of electronic detonator assemblies (11) according to a single blasting pattern.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 14, 2016
    Assignee: DAVEY BICKFORD
    Inventors: Franck Guyon, Samir Bouamar
  • Patent number: 9194668
    Abstract: The invention is an energetic unit comprised of: a container comprised of a base, an upper part, and a cover; a substrate located in the base and comprised of a thin, ribbon-like strip of flexible material that provides electrical contact to external firing circuits; a semiconductor bridge (SCB) chip electrically and physically attached to the substrate; and one or more layers of energetic material which, are packed into the upper part of the container between the SCB chip and the cover.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: November 24, 2015
    Assignee: RAFAEL ADVANCED DEFENSE SYSTEMS LTD.
    Inventors: Aviv Ronen, Yair Baruchi, Eran Zvulun
  • Patent number: 9064650
    Abstract: A method for assembling a radio frequency (RF) safe switch and detonator system in a non-RF free environment. More particularly, the method is for assembling an RF-safe switch and detonator system for an oil well perforating gun at a well-site that is in a non-RF free environment.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: June 23, 2015
    Assignee: C&J Spec-Rent Services, Inc.
    Inventors: Ed Keppler, Steven DeLozier
  • Patent number: 9037894
    Abstract: Timing circuits including supervisor chip(s), capacitors, and latches. The supervisor chip(s) and capacitors cooperate to generate an electrical signal (window signal) having a high logic state when the window is open. The latches are used to determine whether an event of interest occurred while the window was open using the generated window signal and an electrical signal asserted upon occurrence of the event of interest.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: May 19, 2015
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Deric Keith Mason, Michael David Haddon
  • Publication number: 20150101503
    Abstract: A mesh network controller for remote control of devices such as remote firing devices. The controller includes remote firing devices which have a relay capability that allow a controller to communicate with remote firing devices beyond the range of its direct communication. This is accomplished by a signal being relayed from RFDs to RFDs with the signal going in two directions.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Inventor: ROBERT BROWN
  • Publication number: 20150090144
    Abstract: A timing module for use in a detonating system which includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one shock tube event and an electronic timer which executes a timing interval in response thereto.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Inventors: David Bruce Harding, Albertus Abraham Labuschagne, Andre Louis Koekemoer, Christopher Malcolm Birkin, Craig Charles Schlenter
  • Patent number: 8991315
    Abstract: A detonator assembly (10) which includes a housing (16), an explosive (20) in the housing (16), an initiating element (32) exposed to the explosive (20), a circuit for controlling operation of the initiating element (32), and a communication arrangement which can establish communication between the circuit and an external controller (60) at least at one optical frequency.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 31, 2015
    Assignee: Detnet South Africa (Pty) Ltd
    Inventors: Andre Koekemoer, Craig Charles Schlenter, Albertus A. Labuschagne, Christopher Malcolm Birkin, Herman Van Der Walt
  • Patent number: 8985000
    Abstract: Inductive or capacitive transmission of energy to a projectile is disclosed. A waveguide can be used to transmit the energy, the electric field being concentrated in the waveguide. The thus used energy transfer system includes at least one waveguide which is arranged or integrated in the region of the muzzle, for example between a muzzle brake and a gun barrel. A transmission coupler for transmission is fed by a signal generator. The projectile comprises at least one sensor which captures the signal and a store in the projectile is charged. Assemblies of the system are used for a V0 measurement as well as to program the projectile.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 24, 2015
    Assignee: Rheinmetall Air Defence AG
    Inventor: Henry Roger Frick
  • Patent number: 8984999
    Abstract: A programmable ammunition which receives a program as well as energy transmission is provided. The ammunition also comprises an energy store, an electronic system and an ignition in addition to at least one sensor for capturing the signal emitted for the program, the signal having a frequency which is transmitted further to the electronic system. The ammunition is also combined with an energy transfer unit in such a manner that an additional signal having a frequency is guided to the energy unit by the same the sensor and/or an additional sensor and is charged. Programming and the energy transmission occurs when the projectile passes through a weapon barrel, a muzzle brake or similar which is operated as a waveguide below the threshold frequency.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 24, 2015
    Assignee: Rheinmetall Air Defence AG
    Inventor: Henry Roger Frick
  • Patent number: 8967048
    Abstract: A timing module for use in a detonating system which includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one shock tube event and an electronic timer which executes a timing interval in response thereto.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: March 3, 2015
    Assignee: Detnet South Africa (Pty) Ltd.
    Inventors: David Bruce Harding, Albertus Abraham Labuschagne, Andre Louis Koekemoer, Christopher Malcolm Birkin, Craig Charles Schlenter
  • Patent number: 8939083
    Abstract: The safing system employs a multi-axis accelerometer system and multi-axis gyroscope system and a processor that is programmed to iteratively read acceleration data from the accelerometer system and apply a multi-axis rotation on the acceleration data using gyroscope data iteratively read from the gyroscope system to generate rotationally corrected acceleration data and further programmed to calculate a cumulative distance measure using the rotationally corrected acceleration data. The processor then compares the cumulative distance measure with a predetermined reference measure and to issue a control signal to enable arming of the device when the cumulative distance measure exceeds the reference measure.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: January 27, 2015
    Assignee: L3 Fuzing and Ordnance Systems
    Inventors: Noah Desch, Tim B. Bonbrake
  • Patent number: 8939082
    Abstract: For use in a blasting system (10), a visible, throw-away, safety lockout device (30) which operates automatically, to interrupt power to the blasting system (10), upon the occurrence of one or more defined fault conditions.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 27, 2015
    Assignee: Detnet South Africa (Pty) Ltd
    Inventor: Abraham Johannes Liebenberg
  • Patent number: 8922973
    Abstract: Detonators are described herein. In a general embodiment, the detonator includes a nonlinear transmission line that has a variable capacitance. Capacitance of the nonlinear transmission line is a function of voltage on the nonlinear transmission line. The nonlinear transmission line receives a voltage pulse from a voltage source and compresses the voltage pulse to generate a trigger signal. Compressing the voltage pulse includes increasing amplitude of the voltage pulse and decreasing length of the voltage pulse in time. An igniter receives the trigger signal and detonates an explosive responsive to receipt of the trigger signal.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: December 30, 2014
    Assignee: Sandia Corporation
    Inventor: Juan M. Elizondo-Decanini
  • Patent number: 8919253
    Abstract: A perforating system that transfers a detonation wave between adjacent perforating guns by converting shockwave energy to electrical energy. An explosive is provided on an end of a detonating cord that is coupled to shaped charges, so that a detonation wave traveling in the detonation cord will initiate detonation in the shaped charges and then in the high explosive. The explosive is disposed adjacent a pair of members that are energized so that a magnetic field is formed between the members. When the explosive detonates, the resulting shock wave pushes one of the members into the space between the members to compress the magnetic field. Compressing the magnetic field produces an electrical potential usable to initiate a detonation wave in another detonating cord for perpetuating the detonation wave along the perforating system.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Tim W. Sampson, William Harvey
  • Patent number: 8916809
    Abstract: A method is provided for optically providing at least one of power and data to a projectile from an external optical source. The method including: outputting an optical signal from an external optical source into an interior of the projectile; receiving the optical signal in the interior of projectile and at least one of converting the optical signal to electrical energy and storing data provided in the optical signal. The electrical energy can be provided to the one or more electronic components and/or energy storage medium disposed on the interior of the projectile. The data provided in the optical signal can be provided to a data storage medium disposed on the interior of the projectile.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: December 23, 2014
    Assignee: Omnitek Partners LLC
    Inventors: Jahangir S. Rastegar, Thomas Spinelli
  • Patent number: 8863665
    Abstract: Connection cables for separable firing unit assemblies comprise a first mating connector at a first end and a second mating connector at a second, opposing end. A stripline cable electrically connects the first mating connector to the second mating connector. Separable firing unit assemblies comprise an initiation device. An electronics assembly is configured to transmit a firing pulse to the initiation device. One of a first mating connector and a second mating connector is coupled to the initiation device and the other of the first mating connector and the second mating connector is coupled to the electronics assembly. A second housing of the second mating connector is configured to receive a portion of a first housing of the first mating connector therein.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: October 21, 2014
    Assignee: Alliant Techsystems Inc.
    Inventors: Derek R. DeVries, Brent D. Madsen, Eldon C. Peterson, Donald L. Jackson, William W. Thorup
  • Patent number: 8857339
    Abstract: An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: October 14, 2014
    Assignee: AEL Mining Services Limited
    Inventors: Elmar Muller, Pieter Stephanus Jacobus Halliday, Clifford Gordon Morgan, Paul Dastoor, Warwick Belcher, Xiaojing Zhou, Glenn Bryant
  • Patent number: 8746144
    Abstract: A detonator includes a high voltage switch, an initiator and an initiating pellet. The detonator also includes a low voltage to high voltage firing set coupled to the switch and initiator such that the detonator includes a high voltage power source and initiator in an integrated package. The detonator may also include inductive powering and communications, a microprocessor, tracking and/or locating technologies, such as RFID, GPS, etc., and either a single or combination explosive output pellet. The combination explosive pellet has a first explosive having a first shock energy and a high brisance secondary explosive in the output pellet having a second shock energy greater than the shock energy of the first explosive. Systems are also provided for facilitating fast and easy deployment of one or more detonators in the field.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 10, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Richard W. Givens, Ronald L. Loeser, Roger F. Backhus
  • Patent number: 8701559
    Abstract: A method for detecting a target impact of the munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from an axial vibration induced by the munition; monitoring an output from the power supply; and determining if the munition has axially impacted a target based on the output.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: April 22, 2014
    Assignee: Omnitek Partners LLC
    Inventors: Jahangir S. Rastegar, Carlos M. Pereira, Richard Dratler
  • Patent number: 8695506
    Abstract: A perforating system having a perforating gun with shaped charges, a chassis sub, a communication line in communication with a controller and extending through the chassis sub and perforating gun, a selectively opened and closed continuity switch in the communication line, a lead line connecting the communication line to a detonator, and an arming switch in the lead line. A method of testing the detonator involves confirming electrical continuity through the detonator.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 15, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Ronald Lanclos
  • Patent number: 8695505
    Abstract: A detonator (120) which has a battery (136) which is movable by a pressure wave from a shock tube (158) to a position at which the battery is placed in electrical contact with a circuit (130) which controls firing of an ignition element (128).
    Type: Grant
    Filed: January 10, 2010
    Date of Patent: April 15, 2014
    Assignee: Detnet South Africa (Pty) Ltd.
    Inventors: Andre Louis Koekemoer, Johannes Petrus Kruger, Christopher Malcolm Birkin