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Browse by Category: Main > Firearms & Weapons
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
5460095 Mounting apparatus for expendable bar carrier shaped-charges Oct. 24, 1995
5447090 Remote control for bulk explosives delivery system Sep. 5, 1995
5431104 Exploding foil initiator using a thermally stable secondary explosive Jul. 11, 1995
5388521 Method of reducing ground vibration from delay blasting Feb. 14, 1995
5386780 Method and apparatus for extended time delay of the detonation of a downhole explosive assembly Feb. 7, 1995
5359935 Detonator device and method for making same Nov. 1, 1994
5355802 Method and apparatus for perforating and fracturing in a borehole Oct. 18, 1994
5343002 Disposable point with explosive charge for seismic exploration Aug. 30, 1994
5322019 System for the initiation of downhole explosive and propellant systems Jun. 21, 1994
5308149 Non-explosive drill hole pressurization method and apparatus for controlled fragmentation of hard compact rock and concrete May. 3, 1994
5281775 Vibrating hole forming device for seismic exploration Jan. 25, 1994
5261327 Blasting method and composition Nov. 16, 1993
5259316 Method and apparatus for wet/dry, small bore hole explosive device Nov. 9, 1993
5253585 Explosive pipe crimping method and devices Oct. 19, 1993
5253586 Method of stemming a blast hole Oct. 19, 1993
5233926 Adhesive secondary blasting cone Aug. 10, 1993
5223665 Method and apparatus for disabling detonation system for a downhole explosive assembly Jun. 29, 1993
5216197 Explosive diode transfer system for a modular perforating apparatus Jun. 1, 1993
5198613 Waterproof device for holding explosives in a borehole and method for using the same Mar. 30, 1993
5196648 Method for deslagging a cyclone furnace Mar. 23, 1993
5192819 Bulk explosive charger Mar. 9, 1993
5177321 Apparatus for severing tubular members Jan. 5, 1993
5159153 Emulsion that is compatible with reactive sulfide/pyrite ores Oct. 27, 1992
5155293 Safety booster for explosive systems Oct. 13, 1992
5149911 Flexible sheet explosive Sep. 22, 1992
5147566 High speed silent cracking agent of the liquid-soaked type and the process for making same Sep. 15, 1992
5140907 Method for surface mining with dragline and blast casting Aug. 25, 1992
5105743 Method and device for introduction of explosives into drill holes Apr. 21, 1992
5105742 Fluid sensitive, polarity sensitive safety detonator Apr. 21, 1992
5099763 Method of blasting Mar. 31, 1992
5090325 Tunnel driving method Feb. 25, 1992
5071496 Low level blasting composition Dec. 10, 1991
5014622 Blasting system and components therefor May. 14, 1991
5009163 Non-electric signal transmission device connection, method and apparatus therefor Apr. 23, 1991
5007344 Dual firing system for a perforating gun Apr. 16, 1991
5007345 Method and apparatus for charging waterlogged boreholes with explosives Apr. 16, 1991
5005641 Gas generator with improved ignition assembly Apr. 9, 1991
5003880 Process for the impact healing of inner discontinuities or defects in the sub-surface region of a cast component Apr. 2, 1991
4984520 Enclosed perforating gun with expendable carrier Jan. 15, 1991
4966077 Loading of boreholes with explosive Oct. 30, 1990
4951744 Angularly shaped unitary structured base strip comprised of a specific material adapted for phasing charges in a perforating gun Aug. 28, 1990
4938143 Booster shaped for high-efficiency detonating Jul. 3, 1990
4936933 Process for preparing explosive Jun. 26, 1990
4919050 Well perforating device Apr. 24, 1990
4915029 Shaped charge carrier assembly method Apr. 10, 1990
4913233 Methods of field blasting of earth formations using inflatable devices for suspending explosives in boreholes Apr. 3, 1990
4900092 Barrel for rock breaking tool and method of use Feb. 13, 1990
4885993 Shaped charge with bifurcated projection for detonating cord Dec. 12, 1989
4875413 Apparatus for perforating wells Oct. 24, 1989
4869173 Blasting plug with plate members and plastic resin Sep. 26, 1989

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