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    • 1. 发明授权
    • Low observable ammunition casing
    • 低可观察弹药套管
    • US06672219B2
    • 2004-01-06
    • US10336892
    • 2003-01-06
    • Brad MackerellRyan PayneRodger L. FelixGary M. Renlund
    • Brad MackerellRyan PayneRodger L. FelixGary M. Renlund
    • F42B300
    • F42B5/025F42B5/295
    • A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electroplating, chemical deposition, and spray painting. The colored coating may be selected from a variety of different colors such as, black, olive green, silver, brown, tan, gray, and white. The colors are typically obtained using conventional pigments and colorants, such as metal oxides. The brass casing exterior surface may be roughened to reduce the gloss or sheen of the casing on the colored coating. The invention includes ammunition cartridges containing a low observable brass casing described above.
    • 一种低可观察的黄铜弹药筒壳体,其外表面具有彩色涂层,使得暗盒壳体低可观察。 着色涂层可以通过各种工艺沉积到外表面上,例如电镀,化学沉积和喷漆。 彩色涂层可以选自各种不同的颜色,例如黑色,橄榄绿色,银色,棕色,棕褐色,灰色和白色。 通常使用常规颜料和着色剂如金属氧化物来获得颜色。 黄铜套管外表面可以被粗糙化,以减少彩色涂层上的套管的光泽或光泽。 本发明包括包含上述低可观察黄铜套管的弹药筒。
    • 3. 发明授权
    • Cooling system for downhole tools
    • 井下工具冷却系统
    • US06336408B1
    • 2002-01-08
    • US09240955
    • 1999-01-29
    • Robert A. ParrottHaoshi SongKuo-Chiang Chen
    • Robert A. ParrottHaoshi SongKuo-Chiang Chen
    • F42B300
    • E21B47/011E21B36/001Y10S102/704Y10S102/705
    • Apparatus and method for cooling a component inside a tool includes a container and a plurality of heat sinks positioned in the container. The components are positioned in the container with the heat sinks for maintaining a reduced temperature inside the container. Further, an insulating layer and a reflective layer surround the heat sinks and components to reduce heat transfer. Alternatively, the container can have a hollow wall that encloses the space in which a heat sink material (such as an eutectic material) is disposed. The components to be protected are located in the container. The eutectic material includes a composition having tin and zinc. The insulating layer includes a container that stores a vacuum layer, such as a dewar flask.
    • 用于冷却工具内的部件的装置和方法包括容器和位于容器中的多个散热器。 这些部件定位在具有散热器的容器中,以保持容器内的降低的温度。 此外,绝缘层和反射层围绕散热器和部件以减少热传递。 或者,容器可以具有封闭其中设置有散热材料(例如共晶材料)的空间的中空壁。 待保护的部件位于容器中。 共晶材料包括具有锡和锌的组合物。 绝缘层包括容纳真空层的容器,例如杜瓦瓶。
    • 5. 发明授权
    • Payload mechanism for low impulse cartridges
    • 低冲击盒的有效载荷机制
    • US06324984B1
    • 2001-12-04
    • US09632009
    • 2000-08-03
    • Frank J. Dindl
    • Frank J. Dindl
    • F42B300
    • F42B5/02F42B5/045F42B12/64
    • This low impulse payload cartridge for automatic weapons includes a case, a piston, an ogive, a payload cup, a payload, and a link. The payload cup and payload is seated into the forward portion of the piston. Gas passages permit propellant gases to bleed into the cavity behind the payload and to accelerate the payload upon firing. An alternative to using bleed gases is to use a separate propelling charge behind the payload. The case and piston are assembled and telescopically secured by means of a crimp or other similar feature, to allow relative movement therebetween during chambering and firing. The link may be allowed to move for some portion of the required relative travel between the link and the base of the case. A shoulder on the piston provides a stop through which reaction loads are transmitted to the rear of the barrel during chambering and firing. The piston telescopes over the case during chambering to provide the relative movement between the link and the case base required for weapon function. The relative movement between the piston and the case also allow the payload cup to be forced through the end of the piston. Upon firing, the expanding propellant gases force the case and piston to telescope open. Propellant gases are also used to expel the payload. Reaction loads are applied to the rear of the barrel through the shoulder, and at the same time are applied to a bolt, driving it rearward to cycle the weapon. The cartridge can be used in automatic weapon systems including but not limited to the 40 mm MK19 Grenade Machinegun.
    • 这种用于自动武器的低冲击有效载荷盒包括壳体,活塞,构件,有效载荷杯,有效载荷和连杆。 有效载荷杯和有效载荷被安置在活塞的前部。 燃气通道允许推进剂气体流入有效载荷后面的空腔,并在燃烧时加速有效载荷。 使用排放气体的替代方法是在有效载荷后面使用单独的推进装药。 壳体和活塞通过压接或其它类似特征组装和可伸缩地固定,以允许在室内和燃烧期间相对运动。 可以允许链路在链路和壳体的基座之间移动所需的相对行进的一部分。 活塞上的一个肩部提供了一个停止装置,通过该挡块,反应载荷在室内和燃烧期间传递到桶的后部。 活塞在舱室期间伸出壳体,以提供连杆和武器功能所需的壳体底座之间的相对运动。 活塞和壳体之间的相对运动也允许有效载荷杯被迫穿过活塞的端部。 在燃烧时,膨胀的推进剂气体迫使壳体和活塞望远镜打开。 推进剂气体也用于排出有效载荷。 反作用力通过肩部施加到筒的后部,同时施加到螺栓上,向后推动以使武器循环。 墨盒可用于自动武器系统,包括但不限于40毫米MK19榴弹机枪。
    • 6. 发明授权
    • Explosive device and method of using such a device
    • 爆炸装置及其使用方法
    • US06644203B1
    • 2003-11-11
    • US10030067
    • 2002-06-07
    • Kevin Mark Powell
    • Kevin Mark Powell
    • F42B300
    • F42D3/00
    • An explosive device (10) comprising: and explosive charge body (12) including an explosive charge and detonator (21); a housing (22) attached to the explosive charge body (12); and a length of electrical or non-electrical non-pyrotechnic firing line (26) having a first (28) and second end (32) the majority of which is stored within the housing so as to permit progressive removal from the housing on pulling the first end (28) thereof, and which is attached at the second end (32) to the detonator (21). The explosive device (10) can be used in a versatile manner for avalanche control, can allow a degree of positioning after initial deployment and provide safe operation yet is easily handleable, readily deployed and compact, and negates the hazards associated with the use of pyrotechnic delay fuze.
    • 一种爆炸装置(10),包括:和爆炸装药体(12),其包括炸药和雷管(21); 附接到炸药装载体(12)的壳体(22); 以及具有第一(28)和第二端(32)的电气或非电气非烟火点火线(26)的长度,其大部分被存储在所述壳体内,以便允许在拉动所述壳体时从所述壳体逐渐移除 并且其第二端(32)附接到雷管(21)。 爆炸装置(10)可以用于雪崩控制的通用方式,可以在初始部署后允许一定程度的定位,并提供安全的操作,但易于处理,易于部署和紧凑,并且否定与使用烟火有关的危险 延时引信。
    • 7. 发明授权
    • Method of blasting bench of rock with improved blasting efficiency and reduced blasting nuisance
    • US06532874B2
    • 2003-03-18
    • US10034348
    • 2001-12-28
    • Young-Jae Yoon
    • Young-Jae Yoon
    • F42B300
    • F42D3/04E21C37/16
    • The present invention relates to a blasting method of rock, by which blasting nuisances can be reduced and blasting efficiency increased. The method utilizes a blasting mechanism comprising the steps of: successively drilling a plurality of blasting holes on a upper free surface of a bench of rock with two free surface consisting of the upper free surface and a slant free surface extended from the upper free surface or on a free surface of rock with one free surface, in which the blasting holes are arranged in straight line and consist of a first group of first-order blasting holes, a second-order blasting hole and a second group of first-order blasting holes; charging the blast holes with an explosive; blasting the first-order blasting holes so as to form four free surfaces around the second-order blasting hole; and blasting the second-order blasting holes in a state where the four free surfaces were formed. The blasting mechanism can be applied to control the size of fractured rock, or to make even a surface of blasted rock floor, or to conduct blasting processes coincided with field conditions. In addition, the blasting mechanism of the present invention can be applied in blasting for the excavation of rock with one free surface, and also in presplitting blasting of rock for formation of a slope on rock.
    • 8. 发明授权
    • Controlled electromagnetic induction detonation system for initiation of a detonatable material
    • 用于启动可爆炸材料的受控电磁感应爆炸系统
    • US06422145B1
    • 2002-07-23
    • US09530816
    • 2000-07-10
    • Mihailo GavrilovicKeith Wright
    • Mihailo GavrilovicKeith Wright
    • F42B300
    • F42D1/05F42C13/047
    • The controlled electromagnetic induction detonation system for initiation of a detonatable material system includes an automated radio charge (ARCH) module connectable to an electric detonator, a transducer module for providing operational power by electromagnetic induction to the ARCH module, and a remote controller for sending instructions to the transducer module from a location remote from the detonator. Upon completion of an arming sequence, the transducer module generates an electromagnetic field which is picked up by a coil in the ARCH module and used to power the ARCH module and provide a detonation current for the detonator. The transducer module or at least a coil thereof which produces the electromagnetic field is supported on or in a stemming bar which in turn acts as a core of an electromagnet confining the magnetic flux for pick up by the ARCH module. Multilevel access control and interlock systems operate between the remote controller, transducer unit and the ARCH module to reduce the likelihood of unintentional initiation of the detonator.
    • 用于启动可爆炸材料系统的受控电磁感应爆炸系统包括可连接到电雷管的自动无线电充电(ARCH)模块,用于通过电磁感应向ARCH模块提供操作功率的换能器模块以及用于发送指令的遥控器 从远离雷管的位置到换能器模块。 在完成布防序列时,换能器模块产生电磁场,该电磁场由ARCH模块中的线圈拾取并用于为ARCH模块供电并为雷管提供爆震电流。 产生电磁场的换能器模块或其至少一个线圈被支撑在杆杆上或杆杆上,杆杆又用作限制用于由ARCH模块拾取的磁通量的电磁体的铁心。 多级门禁控制和互锁系统在遥控器,换能器单元和ARCH模块之间运行,以减少雷电无意启动的可能性。