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Class Information
Number: 102/319
Name: Ammunition and explosives > Blasting > Contained blasting charge > With well-anchoring means, wall-contacting guides, or buffers
Description: Subject matter which includes means to (a) support the explosive in a fixed location along the wall of a well, (b) to cushion the contact between the explosive and the wall in its movement, or (c) center the explosive in the borehole.










Patents under this class:

Patent Number Title Of Patent Date Issued
8136449 Explosive powder plug and method of using the same Mar. 20, 2012
8015921 Electronic blasting capsule Sep. 13, 2011
7950328 Blast hole liner May. 31, 2011
7721820 Buffer for explosive device May. 25, 2010
7284601 Casing conveyed well perforating apparatus and method Oct. 23, 2007
7284489 Casing conveyed well perforating apparatus and method Oct. 23, 2007
7258054 Continuous explosive charge assembly for use in an elongated cavity Aug. 21, 2007
7210409 Modular explosives cartridge and novel spider construction May. 1, 2007
7073448 Shaped charge tubing cutter Jul. 11, 2006
7069862 Handheld tool for breaking up rock Jul. 4, 2006
6901865 Primer casing and method of charging a blasthole Jun. 7, 2005
6886466 Method and apparatus for sleeving a borehole May. 3, 2005
6722251 Method for loading a continuous explosive charge assembly in an elongated cavity Apr. 20, 2004
6564686 Continuous explosive charge assembly and method for loading same in an elongated cavity May. 20, 2003
6435096 Method and apparatus for controlled small-charge blasting by decoupled explosive Aug. 20, 2002
6009811 Charge assembly for a pipe-coupling cutting device Jan. 4, 2000
5798477 Explosive cartridge assembly for presplitting rock Aug. 25, 1998
5474364 Shotgun cartridge rock breaker Dec. 12, 1995
5343002 Disposable point with explosive charge for seismic exploration Aug. 30, 1994
5259316 Method and apparatus for wet/dry, small bore hole explosive device Nov. 9, 1993
5192819 Bulk explosive charger Mar. 9, 1993
5131465 Perforating apparatus for circulating cement Jul. 21, 1992
4969525 Firing head for a perforating gun assembly Nov. 13, 1990
4961381 Primer centering device for large diameter blastholes Oct. 9, 1990
4706567 Explosive charges Nov. 17, 1987
4528910 Apparatus for cutting a submerged tube by means of a pyrotechnic charge Jul. 16, 1985
4499828 Barrier breaching device Feb. 19, 1985
4464994 Apparatus for plugging a blast hole in an in situ oil shale retort or the like Aug. 14, 1984
4464993 Process for use in blasting in situ retorts and the like Aug. 14, 1984
4399829 Tapping apparatus and method Aug. 23, 1983
4371044 Simultaneous multigun high density multiphase perforating unit Feb. 1, 1983
4278025 Seismic explosive charge loader and anchor Jul. 14, 1981
4122899 Well perforator with anchor and method Oct. 31, 1978
3939771 Seismic explosive charge loader and anchor Feb. 24, 1976











 
 
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