Ignition Or Detonation Circuit Patents (Class 102/206)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 8676197
    Abstract: Methods and systems for controlling wireless communications are provided. A method of controlling wireless communications includes acquiring base station data at a mobile base station mimicking system. The base station data is associated with a targeted base station of a wireless communication system. The method may include mimicking signals of a neighboring base station of the targeted base station based on the acquired base station data. Further, the method may include transmitting a ban signal associated with the targeted base station. The ban signal is based on the acquired base station data and may induce at least one communication device to stop communicating with the targeted base station. In addition, the method includes controlling communications associated with the at least one communication device via the mobile base station mimicking system.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: March 18, 2014
    Assignee: Lemko Corporation
    Inventors: Shaowei Pan, Nicholas Labun
  • Publication number: 20140060366
    Abstract: An all-fire detection circuit for an electrically initiated inertial igniter munition. The all-fire detection circuitry including: an input configured for receiving an input voltage over a duration responsive to an acceleration of the munition; an electrical storage device configured to receive a portion of the input voltage over the duration and to thereby accumulate a charge, an output coupled to the electrical storage device to deliver an all-fire indication when at least a portion of the charge exceeds a first predetermined voltage; a first diode having a first anode coupled to the input, and a first cathode; a resistor coupled in series between the first cathode and the electrical storage device; a second diode having a second anode coupled to the electrical storage device, and a second cathode; and a third diode having a third anode coupled to the first cathode, and a third cathode coupled to the second cathode.
    Type: Application
    Filed: March 2, 2013
    Publication date: March 6, 2014
    Applicant: Omnitek Partners LLC
    Inventors: Jahangir S. Rastegar, Dake Feng
  • Patent number: 8661978
    Abstract: A detonator system is provided for use with explosives that utilizes two subsystems. A first subsystem functions as a non-explosives based detonator, which does not contain any explosives. The second subsystem is an initiating subsystem, which includes an initiating pellet. To set off an explosive event, the non-energetics based detonator is coupled to the initiating subsystem and the non-energetics based detonator is commanded to provide a suitable signal to the initiating subsystem that is sufficient to function the initiating pellet. Further, the initiating subsystem can be integrated directly into an associated explosive such as a booster that has been configured to receive the initiator subsystem without changing the hazard class of the booster.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 4, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Roger F. Backhus, Richard W. Givens, Jerome A. Klein, Ronald L. Loeser, Jason E. Paugh, Walter G. VanCleave, III, Isaac Thomas Zimmer
  • Publication number: 20140053750
    Abstract: Wireless detonator systems present opportunities for controlled blasting of rock without the encumbrances of physical wired connections at the blast site. Disclosed herein are wireless detonator assemblies, which sense the state of environmental condition(s) of their immediate vicinity, and which are active to receive and/or process a command signal to FIRE only if the environmental condition(s) are deemed suitable or appropriate according to predetermined parameters. Also disclosed are improved methods of blasting involving such wireless detonator assemblies, as well as corresponding wireless electronic primers.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 27, 2014
    Applicant: ORICA INTERNATIONAL PTE LTD.
    Inventors: Charles Michael Lownds, Walter Hardy Piel
  • Patent number: 8621998
    Abstract: A remote initiator breaching system for initiating breaching charges over a short range requiring no physical link between the breacher and the demolition charge. The remote initiator breaching system has at least one transmitter, at least one receiver, at least one shock tube connectable to a breaching charge and a power source for each of the transmitter and receiver. The transmitter is able to generate and transmit a coded signal. The transmitter has an input for inputting operational commands into the transmitter for generating the coded signal, The transmitter has a plurality of channels representing different frequency bands, and multiple addresses for each channel such that transmission of the coded signal from the transmitter to the receiver is possible per individual addresses or all addresses simultaneously.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: January 7, 2014
    Assignee: Mas Zengrange (NZ) Limited
    Inventors: Roger Neil Ballantine, Tony Humphries, Deon Grobler, Drago Lavrencic, David Hamilton
  • Patent number: 8584585
    Abstract: An inertial delay mechanism for use in an explosive projectile is provided. The delay mechanism consists of an inertial delay fuse that is precise, doesn't require sensitive primary explosives and doesn't utilize electronic circuitry. The inertial delay fuse includes a free sliding charge element that strikes an anvil located opposite to the sliding charge element. A delay gap is provided between the sliding charge element and the anvil. Upon impact, the sliding charge element slides forward and impacts the anvil, thereby inducing a shock wave in an initiator charge that subsequently results in detonation of main charges. The design is mechanically simple and robust enough to withstand severe g-loading forces that occur during firing and penetration of a projectile.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: November 19, 2013
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael A. Bohnet, Yeshayahu S. Goldstein, Mark H. Machina, Kristopher P. Mount, Kenneth W. Mitchell
  • Patent number: 8582275
    Abstract: An electronic detonator control chip (100) includes a communication interface circuit (101), a rectification bridge circuit (102), a charging circuit (103), a charging control circuit (110), a power management circuit (104), a firing control circuit (105), a logic control circuit (106), a non-volatile memory (107), a reset circuit (111), a safe discharging circuit (108), and a clock circuit (202). Wherein, the communication interface circuit (101) includes a data modulation module (210) and a data demodulation module (211) including two data demodulation circuits (212). The logic control circuit (106) further includes a programmable delay module (281), an input/out interface (282), a serial communication interface (283), a prescaler (284), a CPU (285), and so on.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: November 12, 2013
    Assignee: Beijing Ebtech Technology Co., Ltd.
    Inventors: Jinglong Yan, Xing Liu, Fengguo Li, Huaping Lai, Xianyu Zhang
  • Patent number: 8573124
    Abstract: An ordnance firing system is disclosed that includes a reusable electronics module and an ordnance module, each enclosed in a separate, sealed housing. The electronics module housing encloses firing electronics for electrically triggering initiation of a detonator in the ordnance module. The electronics module detachably connects to the ordnance modules via a connector which extends away from the electronics module housing. The housing of the ordnance module is constructed to be blast-resistant to prevent detonation of the detonator from rendering the electronics module inoperable.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 5, 2013
    Assignee: Orbital Sciences Corporation
    Inventors: Curtis Havran, Jackie Wayne Spears, Karina Ogilvie, Robert John Keller, David Phillips
  • Patent number: 8552349
    Abstract: Apparatus and methods provide a guidance kit that can be attached to a projectile, such as screwed into a fuze well of an artillery round or a mortar round. A portion of the guidance kit is configured to spin constantly during flight. In the context of an artillery round that is shot from a rifled barrel, the direction of the spin torque is counter to the direction of the spin induced by the rifled barrel. Control surfaces are present in the portion of the guidance kit that spins constantly during flight. While the portion spins, the control surfaces are actuated to steer the projectile towards an intended target via, for example, GPS.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 8, 2013
    Assignee: Interstate Electronics Corporation
    Inventor: Steven B. Alexander
  • Publication number: 20130255520
    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. The system also includes a radio frequency identification (RFID) based switching device that detects a switching property of a radio switching signal that is transmitted to the detonator system and switches the initiating device, on detection of the detonation initiating property, to a standby condition in which the initiating device is capable of operatively accepting the detonation initiating signal when it is transmitted thereto.
    Type: Application
    Filed: December 9, 2011
    Publication date: October 3, 2013
    Applicant: AEL Mining Services Limited
    Inventors: Elmar Muller, Pieter Stephanus Jacobus Halliday, Clifford Gordon Morgan, Paul Dastoor, Warwick Belcher, Xiaojing Zhou, Glenn Bryant
  • Publication number: 20130255521
    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: Application
    Filed: December 9, 2011
    Publication date: October 3, 2013
    Inventors: Elmar Muller, Pieter Stephanus Jacobus Halliday, Clifford Gordon Morgan, Paul Dastoor, Warwick Belcher, Xiaojing Zhou, Glenn Bryant
  • Patent number: 8547680
    Abstract: There is provided an ignition system which is capable of surely operating by electric energy stored in a capacitor for ignition while separating an igniter from electric circuits for communication and ignition without producing improper operation through static electricity and noise and is compact and excellent in the productivity.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: October 1, 2013
    Assignee: Nipponkayaku Kabushikikaisha
    Inventors: Hideyuki Koike, Shigeru Maeda, Hirotaka Mukunoki
  • Patent number: 8539884
    Abstract: A remote pyrotechnic ignition system includes a power supply for producing an electrical current in a transmitting induction coil to induce an electrical current in a receiving induction coil for igniting a pyrotechnic device. Thus, a wireless ignition communication section allows pyrotechnic mortars to be reused and substantially reduces set-up time by eliminating the wiring of fireworks normally required for a pyrotechnic production. Optionally, a capacitor is charged by the power source via a charging circuit and discharged via a firing circuit to produce the electric current in the transmitting coil in a pulse. The capacitor provides a two-stage firing safety feature. An electronic control device such as a circuit board may be mounted on the pyrotechnic device for controlling ignition of the pyrotechnic device and is especially useful in controlling ignition sequencing and overall ignition timing of a lift charge and burst charge of the pyrotechnic device.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: September 24, 2013
    Inventor: James G. Deye