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Class Information
Number: 102/313
Name: Ammunition and explosives > Blasting > Borehole loading
Description: Subject matter including means for placing or inserting (a) an explosive, or (b) a fluid under high pressure capable of rapid expansion to break up material in a hollowed-out place.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
6250227 Provisional linking and pyrotechnic separation device for two nonmetallic assemblies Jun. 26, 2001
6223656 Pressure enhanced penetration with shaped charge perforators May. 1, 2001
6220167 Excavation method by blasting Apr. 24, 2001
6216596 Zinc alloy shaped charge Apr. 17, 2001
6213212 Spherical stemming plug and method of use Apr. 10, 2001
6210122 Method and delivering an explosive composition Apr. 3, 2001
6209458 Inflatable plugs for charging blastholes Apr. 3, 2001
6170400 Device for the cutting of nonmetallic parts by means of a pyrotechnic expansion tube Jan. 9, 2001
6165297 Process and apparatus for the manufacture of emulsion explosive compositions Dec. 26, 2000
6148730 Method and apparatus for controlled small-charge blasting by pressurization of the bottom of a drill hole Nov. 21, 2000
6125761 Zinc oxide inhibited emulsion explosives and method Oct. 3, 2000
6098516 Liquid gun propellant stimulation Aug. 8, 2000
6070511 Apparatus and process for loading emulsion explosives Jun. 6, 2000
6053111 Surface safe rig environment detonator Apr. 25, 2000
6035784 Method and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole Mar. 14, 2000
6014933 Downhole charge carrier Jan. 18, 2000
6009811 Charge assembly for a pipe-coupling cutting device Jan. 4, 2000
5957540 Blasting positioning device Sep. 28, 1999
5952603 Insert and twist method and apparatus for securing a shaped charge to a loading tube of a perforating gun Sep. 14, 1999
5920030 Methods of blasting using nitrogen-free explosives Jul. 6, 1999
5907119 Method of preventing afterblast sulfide dust explosions May. 25, 1999
5900578 Method of breaking slabs and explosive shock transmitting and moderating composition for use therein May. 4, 1999
5874688 Explosives dispersed from a pressurized container Feb. 23, 1999
5862758 Insert and twist method and apparatus for securing a shaped charge to a loading tube of a perforating gun Jan. 26, 1999
5837925 Shaped charge retainer system Nov. 17, 1998
5811741 Apparatus for placing geophones beneath the surface of the earth Sep. 22, 1998
5810098 Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein Sep. 22, 1998
5798477 Explosive cartridge assembly for presplitting rock Aug. 25, 1998
5777257 Shaped charge assembly with truncated liner Jul. 7, 1998
5765923 Cartridge for generating high-pressure gases in a drill hole Jun. 16, 1998
5714712 Explosive initiation system Feb. 3, 1998
5712440 Apparatus and process for explosives mixing and loading Jan. 27, 1998
5705768 Shaped charges with plastic liner, concave recess and detonator means Jan. 6, 1998
5700968 Perforating gun brake Dec. 23, 1997
5700969 Underground jet perforating using resistive blasting caps Dec. 23, 1997
5689085 Explosive displacing bore hole tube Nov. 18, 1997
5686685 System for pneumatic delivery of emulsion explosives Nov. 11, 1997
5665933 Device for cladding tubes by means of an explosive process Sep. 9, 1997
5648635 Expendalble charge case holder Jul. 15, 1997
5619008 High density perforating system Apr. 8, 1997
5610358 Apparatus and process for explosives blow loading Mar. 11, 1997
5596165 Blasting method and composition Jan. 21, 1997
5584222 Method for charging bore-holes with explosive Dec. 17, 1996
5551344 Method and apparatus for overbalanced perforating and fracturing in a borehole Sep. 3, 1996
5531164 Select fire gun assembly and electronic module for underground jet perforating using resistive blasting caps Jul. 2, 1996
5525010 Method and apparatus for severing tubular members Jun. 11, 1996
5513570 Pressure actuated pipe cutting tool May. 7, 1996
5479860 Shaped-charge with simultaneous multi-point initiation of explosives Jan. 2, 1996
5477785 Well pipe perforating gun Dec. 26, 1995
5470407 Method of varying rate of detonation in an explosive composition Nov. 28, 1995

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