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公开(公告)号：US5929368A
公开(公告)日：1999-07-27
申请号：US762262
申请日：1996-12-09
IPC分类号： F42B3/13 , F42B3/12 , F42C11/06 , H03K17/687 , F42D1/055 , H03K17/567
摘要： An electronic delay circuit (10) for use in a detonator (100) has a switching circuit (20) and a timer circuit (22). Switching circuit (20) controls the flow of a stored charge of electrical energy from a storage capacitor (12) to a bridge initiation element such as a semiconductor bridge (18) or a tungsten bridge. The timing of the release of this energy is controlled by timer circuit (22). Switching circuit (20) is an integrated, dielectrically isolated, bipolar CMOS (DI BiCMOS) circuit, whereas timer circuit (22) is a conventional CMOS circuit. The use of a DI BiCMOS switching circuit allows for greater efficiency of energy transfer from the storage capacitor (12) to the semiconductor bridge (18) than has previously been attained.
摘要翻译： 一种用于雷管（100）的电子延迟电路（10）具有开关电路（20）和定时电路（22）。 开关电路（20）控制来自存储电容器（12）的电能的存储电荷流到诸如半导体电桥（18）或钨桥的桥接起始元件。 释放该能量的时间由定时器电路（22）控制。 开关电路（20）是集成的介电隔离双极CMOS（DI BiCMOS）电路，而定时器电路（22）是传统的CMOS电路。 使用DI BiCMOS开关电路允许比先前已经获得的从存储电容器（12）到半导体电桥（18）的更大的能量传输效率。
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公开(公告)号：US5831203A
公开(公告)日：1998-11-03
申请号：US812662
申请日：1997-03-07
申请人： David W. Ewick
发明人： David W. Ewick
摘要： A detonator (10) contains an SCB initiator assembly (35) in initiation relation to an ignition charge (18). The SCB initiator assembly (35) contains an initiator element (36) having a bridge (60) of semiconductor material between two conductive lands (62a, 62b). The bridge (60) provides a resistance of at least about 50 ohms and has a volume between 48,600 cubic microns and 600,000 cubic microns with a typical thickness of two microns. A firing current of more than 200 milliamp provided to the initiator assembly (35) via input leads (26a, 26b) causes the bridge (60) to initiate the ignition charge (18).
摘要翻译： 雷管（10）包含与点火装料（18）起始关系的SCB引发器组件（35）。 SCB引发器组件（35）包含具有在两个导电焊盘（62a，62b）之间的半导体材料的桥（60）的引发元件（36）。 桥（60）提供至少约50欧姆的电阻，并且具有48,600立方微米至600,000立方微米的体积，典型的厚度为2微米。 经由输入引线（26a，26b）提供给引发器组件（35）的超过200毫安的点火电流使得桥（60）启动点火充电（18）。
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公开(公告)号：US06408759B1
公开(公告)日：2002-06-25
申请号：US09402868
申请日：2000-02-29
申请人： David W. Ewick , Brendan M. Walsh
发明人： David W. Ewick , Brendan M. Walsh
IPC分类号： F42B310
摘要： An initiator (100) assembled from a housing (112), an output charge (144) and an initiation means (110, 120, 58, 54) includes a pulverulent ignition charge (46a) disposed in direct initiation relation to the initiation means, and an output charge (144) that may contain a pulverulent deflagration-to-detonation transition (DDT) charge (144a) and an explosive base charge (144b). The ignition charge (46a) has an average particle size of less than 10 microns, or even less than 5 microns, e.g., 1 to 2 microns. The initiation means may include a semiconductor bridge (18) and the ignition charge (46a) may be compacted with a force of less than about 5880 psi, e.g., with a force of 1000 psi. In another embodiment, an initiator (210) includes a low-energy electrical initiator (234), a loosely packed BNCP ignition charge (218) and a pyrotechnical output charge (214).
摘要翻译： 从外壳（112），输出电荷（144）和启动装置（110,120,58,54）组装的起动器（100）包括与引发装置直接起动关系设置的粉状点燃电荷（46a） 以及可能包含粉状爆燃至爆炸过渡（DDT）电荷（144a）和爆炸性碱性电荷（144b）的输出电荷（144）。 点火电荷（46a）的平均粒度小于10微米，甚至小于5微米，例如1至2微米。 引发装置可以包括半导体桥（18），并且点火装料（46a）可以以小于约5880psi的力例如以1000psi的力压缩。 在另一个实施方案中，引发剂（210）包括低能电引发剂（234），松散包装的BNCP点燃电荷（218）和烟火输出电荷（214）。
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公开(公告)号：US5889228A
公开(公告)日：1999-03-30
申请号：US831664
申请日：1997-04-09
申请人： David W. Ewick , Brendan M. Walsh
发明人： David W. Ewick , Brendan M. Walsh
摘要： A detonator (100) assembled from a housing (112), an output charge (144) and an initiation means (110, 120, 58, 54) includes a pulverulent ignition charge (46a) disposed in direct initiation relation to the initiation means, and an output charge (144) that may contain a pulverulent deflagration-to-detonation transition (DDT) charge (144a) and a base charge (144b). The ignition charge (46a) has an average particle size of less than 10 microns, or even less than 5 microns, e.g., 1 to 2 microns. The initiation means may include a semiconductor bridge (18) and the ignition charge (46a) may be compacted with a force of less than about 5880 psi, e.g., with a force of 1000 psi.
摘要翻译： 从外壳（112）组装的雷管（100），输出电荷（144）和启动装置（110,120,58,54）包括与启动装置直接起动关系的粉状点火充电装置（46a） 以及可以包含粉状爆燃至爆炸转换（DDT）电荷（144a）和基极电荷（144b）的输出电荷（144）。 点火电荷（46a）的平均粒度小于10微米，甚至小于5微米，例如1至2微米。 引发装置可以包括半导体桥（18），并且点火装料（46a）可以以小于约5880psi的力例如以1000psi的力压缩。
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公开(公告)号：US5714712A
公开(公告)日：1998-02-03
申请号：US738173
申请日：1996-10-25
申请人： David W. Ewick , Daniel P. Sutula, Jr. , Brendan M. Welch , Anthony Sendek , Willie B. Eicke, Jr.
发明人： David W. Ewick , Daniel P. Sutula, Jr. , Brendan M. Welch , Anthony Sendek , Willie B. Eicke, Jr.
摘要： A detonation system especially useful for initiating a plurality of substantially simultaneous seismic detonations includes an electric trunkline circuit disposed on the surface of a firing site containing boreholes, within which booster charges having respective top and base portions are disposed. The booster charges are connected without intervening detonators to the downhole ends of equal-sized lengths of low-energy detonating cord, the surface ends of which are connected to semiconductor bridge-initiated electric detonators connected in series in the firing circuit. The resulting system, because of the small deviation in function time of the semiconductor bridge detonators, has greatly reduced scatter time as compared to prior art systems utilizing conventional downhole electric detonators, and has a safety advantage in that the boreholes are free of detonators. The booster charges are dimensioned and configured to direct more of their explosive energy in a downward direction than in an upward direction, and are fired at the top portion thereof, in order to maximize the downward direction of energy of the booster charge.
摘要翻译： 特别用于启动多个基本上同时的地震爆震的爆震系统包括设置在包含钻孔的击发位置的表面上的电力干线回路，在该点火位置内设置有各自的顶部和底部的增压器。 增压器电荷连接在没有介入雷管的同等尺寸的低能引爆线的井下端，其低端引爆线连接到在起火回路中串联连接的半导体桥引发的电雷管。 与使用常规的井下电雷管的现有技术系统相比，由于半导体桥式雷管的功能时间偏差小，所得到的系统大大降低了散射时间，并且具有钻孔没有雷管的安全优点。 增压器充电的尺寸和构造被设计成在向下的方向上引导更多的它们的爆炸能量，并且在其顶部被点燃，以便使增压器充电的能量的向下方向最大化。
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