Class 361/249 - With sequential firing by electronic switching

Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter wherein plural explosive devices are ignited
No. of patents: 35
Last issue date: 06/21/2011

Number	Title	Issue Date
7965490	Method for assigning a delay time to electronic delay detonators In the method for assigning a delay time to an electronic delay detonator. The detonator includes a data register (24) into which a desired delay time value, supplied by a controller, is written. Subsequently, over a predetermined time period (t) the contents...	06/21/2011
7929270	Wireless detonator assemblies, and corresponding networks Wireless detonator assemblies (51-59) in use, form a cross-communicating network of wireless “detonator assemblies, such that communication of each wireless detonator assembly (57-59) with an associated blasting machine (50) can ...	04/19/2011
7911760	Electronic blasting system An electronic blasting system (1) comprising a control unit (3), a surface harness and electronic detonators (4) connected to the surface harness by a 2-wire lead, the detonators (4) being adapted to provide information to the control uni...	03/22/2011
7322293	Device and system for identifying an unknow or unmarked slave device such as in an electronic blasting system A system such as an electronic blasting system, and a slave device for use in the system, in which a command is issued by a master device to all slave devices connected to the system, causing all slave devices that have not been identified to the master device to re...	01/29/2008
7278658	Ordinance firing system for land vehicle An ordnance system of the present invention may include or feature any one or more of: a control unit, one or more effectors (detonators, initiators, shaped charges and the like), and a two-, three- or four-wire communication bus between the control unit and the eff...	10/09/2007
7146912	Flexible detonator system An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag i...	12/12/2006
7116542	Micro-switches for downhole use A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provid...	10/03/2006
7107908	Firing-readiness diagnostic of a pyrotechnic device such as an electronic detonator Firing-readiness diagnostics in an electronic pyrotechnic device such as an electronic detonator or an electronic blasting system thereof. The diagnostics may include a check for any incompatible attached devices, a resistance or continuity check of an ignition elem...	09/19/2006
7017494	Method of identifying an unknown or unmarked slave device such as in an electronic blasting system A system, for example an electronic blasting system, in which a command is issued by a master device to all slave devices connected to the system, causing all slave devices that have not been identified to the master device to respond with identifying information an...	03/28/2006
6941067	Camera and multiple flash photographing system Guide numbers tgn1, tgn2 as expected light amounts of a main flashlight and a remote flashlight are added for the calculation of an expected illumination amount of each divided photometric region. If there is an over-illuminated region, among the divid...	09/06/2005
6837163	Flexible detonator system An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag i...	01/04/2005
6789483	Detonator utilizing selection of logger mode or blaster mode based on sensed voltages An electronic blasting system in which the electronic detonator, when attached to a blasting machine or logger, automatically senses and determines whether it is attached to a blasting machine or a logger, preferably by utilizing a different operating voltage for th...	09/14/2004
6788012	Circuit for generating high voltage pulse A simple and less expensive high voltage pulse generating circuit including a low voltage direct current voltage source having one output terminal connected to another output terminal via a series circuit of a first switch with a low withstand voltage, an inductance...	09/07/2004
6785116	Triggering unit controlled by a microprocessor for initiating pyrotechnical elements A triggering unit for initiating pyrotechnical elements includes a control component, a rectifier (12), an energy store (15), a voltage regulator (13), a data coupling device (11), a current limiter and a suppressor circuit (10). T...	08/31/2004
6618237	System for the initiation of rounds of individually delayed detonators Disclosed is an electronic detonator delay assembly, having an associated detonator, that can be pre-programmed on site with a time delay and installed in a borehole to carryout a blast operation. The assembly is first coupled to a programming unit to pro...	09/09/2003
6445563	Power circuit breaker using temperature-sensive fuse A power circuit breaker has a housing, a fuse element placed in the housing, and a temperature sensitive fuse attached to the fuse element. The fuse element has tab terminals extending from both ends, which are received by trunk terminals connected to an ...	09/03/2002
6107748	Circuit arrangement of a final ignition stage A circuit arrangement of an ignition output stage in particular for an ignition circuit of a motor vehicle, having a switching arrangement which triggers a primary winding of an ignition coil, and a trigger circuit for the switching arrangement. The trigg...	08/22/2000
6000338	Electrical distribution system The invention relates to an electrical distribution system for energizing a plurality of electric circuits in accordance with a predetermined delay pattern. The system as described comprises a control unit, a plurality of circuit delay arrangements each a...	12/14/1999
5767437	Digital remote pyrotactic firing mechanism A digital remote pyrotactic firing unit for the controlled selection and ignition of a pyrotactic device. An operator manually selects a specific output channel, which generates a Binary Code Decimal signal. The binary code decimal signal is received by a...	06/16/1998
5642253	Multi-channel ignition coil driver module The multi-channel ignition coil driver module of the present invention includes a control integrated circuit and multiple high current load driver integrated circuits housed within a common package. The control integrated circuit is formed of a semiconduc...	06/24/1997
5602713	Electronic delay detonator An electronic delay detonator in which only energy is received only from a blasting unit to determine a delay time, has an oscillating circuit (20) which outputs oscillation pulses in a first transitory oscillation state in which the oscillation pulses ar...	02/11/1997
5571985	Sequential blasting system A sequential blasting system for use in particular in mining comprises a plurality of detonator stages S1, S2, . . . , each of which contains a series circuit consisting of a thyristor T and a detonator means ZE, said series circuit being interposed betwe...	11/05/1996
5367957	Tunable timing circuit and method for operating same and blasting detonator using same An externally tunable clock circuit (10) and a method for adjusting the calibration of a clock circuit with an externally defined time period. A voltage controlled oscillator (VCO) (40) provides clock signals of variable frequency, and a counter (42) rece...	11/29/1994
5282421	Timing apparatus 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...	02/01/1994
4641580	Circuit apparatus for operating fireworks ignition A circuit apparatus for operating firewirks ignition is used by connecting with a fireworks ignition circuit with a group of ignition ball terminals lined up as multi-step and multi-file coordinates of which the positive terminals are respectively connect...	02/10/1987
4610203	Electrical sequential firing system This invention relates to sequential blasting utilizing electronic circuitry to steer detonating pulses to successive detonators. Modules are provided which contain a two-terminal element that has the characteristic that in its first normal state it has a...	09/09/1986
4527636	Single-wire selective perforation system having firing safeguards A method and system for selecting and arming each of a plurality of firing modules in a single-line selective perforating system is disclosed. A single firing line connects each firing module one at a time in a sequence to a control unit to receive power ...	07/09/1985
4419933	Apparatus and method for selectively activating plural electrical loads at predetermined relative times Separate electrical timing and load activation devices are provided for each of plural electrical loads and each device is connected to receive reference timing signals from a central unit. Each of the separate timing and load activation devices measures ...	12/13/1983
4314507	Sequential initiation of explosives A circuit for use in the sequential initiation of explosives comprises an up-down counter having a first input terminal at which an up-count is initiated, a second input terminal at which a downcount is initiated, and an output terminal, an energy storage...	02/09/1982
4106074	Triggering head for devices controlled by an electric power input The triggering head comprises a case containing a battery connected by means of an electronic switching device to the terminals of an output intended for connection of the device to be triggered and a control circuit fed by the battery and comprising seve...	08/08/1978
4012671	Trigger circuit An electro-optic detector utilizes a trigger circuit to sense the presense of a fluid medium and produce a control signal at a predetermined time after the fluid medium is detected....	03/15/1977
3990832	Switching devices for photoflash unit A multiple flashlamp array is designed having a plurality of lamps fired individually and in sequence and includes a plurality of static solid switching devices capable of being easily activated by radiant energy generated during flashing of the lamps. In...	11/09/1976
3942076	Photographic remote slave flash apparatus A remote flash slave apparatus for use in conjunction with a packaged linear array of flashlamps. The slave unit incorporates a solid state flashlamp selector circuit which is enabled or energized for only a limited period of time corresponding with the o...	03/02/1976
3934514	Firing devices and processes Electrical timing and control apparatus for sequentially activating a plurality of electrical load circuits at predetermined and controllable successive timing intervals after the occurrence of a first starting signal wherein the activation sequence is au...	01/27/1976
3935514	Flash lamp signaling circuit employing logic signal activation A photographic flash firing circuit operative to sequentially ignite each of an array of flash lamps in a predetermined order from first to last responsive to an input signal. The circuit is constructed as an integrated circuit including a dual set of cir...	01/27/1976

PatentStorm

Famous Patents

PatentStorm News

Class 361/249 - With sequential firing by electronic switching