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公开(公告)号：US3897836A
公开(公告)日：1975-08-05
申请号：US40748473
申请日：1973-10-18
Applicant: EXOTECH
Inventor： HALL J MICHAEL , CLIPP LOUIS L
Abstract: An apparatus for, and a method of, boring through earth formations, employing a drill bit which comprises a rotary drill, in combination with a device for producing pulsed jets of liquid under high pressure. The device is arranged to cut and fracture the bottom periphery of the borehole and the drill bit cuts and fractures the bottom of the borehole.
Abstract translation: 一种用于通过地层钻孔的装置和一种方法，其采用包括旋转钻头的钻头，与用于在高压下产生液体脉冲射流的装置组合。 该装置布置成切割和破裂钻孔的底部周边，并且钻头切割并破裂钻孔的底部。
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公开(公告)号：US3722819A
公开(公告)日：1973-03-27
申请号：US3722819D
申请日：1971-04-19
Applicant: EXOTECH
Abstract: Apparatus for forming pulsed jets of liquid at relatively low pressures and capable of expelling the pulsed jets over moderate distances for use as a riot control device. A compressed gas is passed to a chamber having liquid therein so that upon actuation of a quick opening valve the liquid is forced from the chamber, through an acceleration tube and out a nozzle. The quick opening valve might be positioned between the pressurized gas source and the liquid chamber, or it might be in the acceleration tube. The gas can act directly on the liquid or it can act through a piston.
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Patent Agency Ranking
公开(公告)号：US3712543A
公开(公告)日：1973-01-23
申请号：US3712543D
申请日：1971-04-19
Applicant: EXOTECH
CPC classification number: B26F3/004 , B05B12/06 , B24C5/02 , E21D9/1066
Abstract: Apparatus for generating pulsed jets of liquid or gel charge material. An expulsion barrel has a charge inlet, a charge storage area, a charge outlet and a valve zone coupling the charge storage area with the charge inlet and the charge outlet. A valve within the valve zone moves under pressure from the charge inlet to a position in which charge material is permitted to pass from the inlet to the charge storage area, while being blocked from the charge outlet, and under pressure from the charge storage area due to action of a piston to a position in which charge material is permitted to pass from the storage area to the charge outlet, while being blocked from the charge inlet. In this manner, the expulsion barrel is dry between jets which provides for a higher pressure jet. A improved seal prevents charge material from escaping around the piston. The seal includes a non-resilient portion interfacing with the piston during piston movement and a resilient portion placed between this non-resilient portion and the surrounding housing and which is compressed due to applied pressure from the charge material to seal the non-resilient portion and the piston thereby assuring a leak-proof seal.
Abstract translation: 用于产生液体或凝胶电荷材料的脉冲射流的装置。 排出桶具有充电入口，电荷存储区域，充电口和将电荷存储区域与充电入口和充电口连接的阀区。 阀区内的阀门在压力下从充电入口移动到允许充电材料从入口到电荷存储区域的位置，同时从充电插座阻塞，并在来自电荷存储区域的压力下 使得活塞到充电材料被允许从存储区域传递到充电出口的位置的作用，同时被阻止从充电入口。 以这种方式，在提供较高压力射流的射流之间，排出筒是干燥的。 改进的密封件防止充电材料在活塞周围逸出。 密封件包括在活塞运动期间与活塞接合的非弹性部分和设置在该非弹性部分和周围壳体之间的弹性部分，并且由于来自加料材料的施加的压力而被压缩以密封非弹性部分， 从而确保了防漏密封。
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公开(公告)号：US3539104A
公开(公告)日：1970-11-10
申请号：US3539104D
申请日：1968-08-06
Applicant: EXOTECH
Inventor： COOLEY WILLIAM C
CPC classification number: E21B23/006 , B05B12/06 , E21B7/18
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15.发明授权
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公开(公告)号：US3465639A
公开(公告)日：1969-09-09
申请号：US3465639D
申请日：1967-12-05
Applicant: EXOTECH
Inventor： COOLEY WILLIAM C
IPC: F41F1/00
CPC classification number: F41F1/00
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