公开(公告)号：US06305752B1

公开(公告)日：2001-10-23

申请号：US09254508

申请日：1999-03-05

申请人： Alan Colin McGowan

发明人： Alan Colin McGowan

IPC分类号： E21C3714

CPC分类号： E21C37/14

摘要： A compressed air blasting device (1), insertable in a pre-prepared bore, has a cylindrical housing or tube (2) containing a number of air guns (4). Apertures (3) in the housing (2) direct the flow of compressed air exhausted by the air guns (4) so as to produce a build-up of pressure sufficient to weaken and displace material from the area surrounding the bore. The further enhance the effect of the device (1), the bore may be filled with water and sealed with a packer (11) mounted on the device (1) prior to blasting.

摘要翻译： 可插入预先制备的孔中的压缩空气喷射装置（1）具有包含若干气枪（4）的圆柱形壳体或管（2）。 壳体（2）中的孔（3）引导由空气枪（4）排出的压缩空气的流动，以产生足以减弱并且从孔周围的区域移位材料的压力的积聚。 进一步增强装置（1）的效果，孔可以填充水并且在喷砂之前用安装在装置（1）上的封隔器（11）密封。

公开(公告)号：US06283555B1

公开(公告)日：2001-09-04

申请号：US09498658

申请日：2000-02-07

申请人： Hiroaki Arai ,  Hidehiko Maehata

发明人： Hiroaki Arai ,  Hidehiko Maehata

IPC分类号： E21C3714

CPC分类号： F42D3/00 ,  E21C37/18

摘要： A discharge breaking system and a discharge breaking method for breakage and decomposition of objects to be ruptured such as destruction of base rocks and breakage of stones into small pieces at building lands, breakage for finishing tunnels and destruction of concrete buildings. A discharge breaking system is configured to supply or discharge electric energy charged or accumulated in a capacitor between a pair of electrodes in a short time for abrupt vaporization of a breaking substance for transmitting a pressure, thereby breaking an object to be ruptured with an expansion force generated by the vaporization. The discharge breaking systems has a structure wherein an end portion of a sheath member which covers a pair of metal cores for composing a cable is cut off to expose ends of the metal cores, and the exposed ends of the metal cores are submerged in the breaking substance and used as electrodes. The cable can be a coaxial cable having an inner core and an outer core, the cable being cut off to expose an end of the inner cable having one or more notches to cause the exposed end of the inner core to function as the foregoing thin metal wire. This discharge breaking system requires no adjustment of a distance between the electrodes and can easily be manufactured.

摘要翻译： 排水断裂系统和破碎破坏物体的破碎和分解方法，如破碎基岩，将石块破碎成小块，建筑物破碎，破坏混凝土建筑物。 放电断开系统被配置为在短时间内将放电或积聚在一对电极之间的电容器中的电能供给或放电，以突然蒸发用于传递压力的断裂物质，从而以膨胀力破坏待破裂的物体 由蒸发产生。 放电断开系统具有这样的结构，其中，覆盖用于组成电缆的一对金属芯的护套构件的端部被切断以暴露金属芯的端部，并且金属芯的暴露端被浸没在断开 物质并用作电极。 电缆可以是具有内芯和外芯的同轴电缆，电缆被切断以暴露具有一个或多个凹口的内电缆的端部，以使内芯的暴露端作为上述薄金属 线。 该放电断开系统不需要调节电极之间的距离并且可以容易地制造。