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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 |
| 7284489 |
Casing conveyed well perforating apparatus and method |
Oct. 23, 2007 |
| 7284601 |
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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