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Class Information
Number: 102/320
Name: Ammunition and explosives > Blasting > Contained blasting charge > Having plural charges
Description: Subject matter wherein there are more than one contained blasting charge.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8555764 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating Oct. 15, 2013
8479653 Low-vulnerability pyrotechnical charge Jul. 9, 2013
8371224 Variable yield device and method of use Feb. 12, 2013
8336437 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating Dec. 25, 2012
8276656 System and method for mitigating shock effects during perforating Oct. 2, 2012
8186425 Sympathetic ignition closed packed propellant gas generator May. 29, 2012
8146500 Multifunctional detonation system Apr. 3, 2012
8028624 Rock-blasting cartridge and blasting method Oct. 4, 2011
7942098 Loading tube for shaped charges May. 17, 2011
7694627 Blast sequence control Apr. 13, 2010
7621332 Apparatus and method for perforating and fracturing a subterranean formation Nov. 24, 2009
7284489 Casing conveyed well perforating apparatus and method Oct. 23, 2007
7228907 High energy gas fracturing charge device and method of use Jun. 12, 2007
7104326 Apparatus and method for severing pipe utilizing a multi-point initiation explosive device Sep. 12, 2006
7073589 System for fracturing wells using supplemental longer-burning propellants Jul. 11, 2006
6991044 High-energy combined well perforating device Jan. 31, 2006
6962202 Casing conveyed well perforating apparatus and method Nov. 8, 2005
6941871 Faceted expansion relief perforating device Sep. 13, 2005
6918334 Perforating gun firing head with vented block for holding detonator Jul. 19, 2005
6523449 Perforating gun Feb. 25, 2003
6439121 Perforating charge carrier and method of assembly for same Aug. 27, 2002
6422147 Sequential detonation of explosive charges Jul. 23, 2002
6283032 Projectile with controlled decomposition and integrated charge in the area of the effective mass Sep. 4, 2001
6220370 Circulating gun system Apr. 24, 2001
5612505 Dual mode warhead Mar. 18, 1997
5590723 Perforating charge carrier assembly Jan. 7, 1997
5463955 Transmission tube connector Nov. 7, 1995
5417162 Detonation coupling device May. 23, 1995
5388521 Method of reducing ground vibration from delay blasting Feb. 14, 1995
5095999 Through tubing perforating gun including a plurality of phased capsule charges mounted on a retrievable base strip via a plurality of shatterable support rings Mar. 17, 1992
5071496 Low level blasting composition Dec. 10, 1991
5054564 Well perforating apparatus Oct. 8, 1991
5024158 Multi-directional initiator for explosives Jun. 18, 1991
5022485 Method and apparatus for detonation of distributed charges Jun. 11, 1991
4991684 Method and apparatus for detonation of distributed charges Feb. 12, 1991
4951744 Angularly shaped unitary structured base strip comprised of a specific material adapted for phasing charges in a perforating gun Aug. 28, 1990
4901619 Shaped charge with barrier produced in situ Feb. 20, 1990
4844170 Well perforating gun and method Jul. 4, 1989
4832134 Shaped charge assembly with retaining clip May. 23, 1989
4815385 Blast focusing method and apparatus Mar. 28, 1989
4815384 Housing for joinable cutting charges Mar. 28, 1989
4800815 Shaped charge carrier Jan. 31, 1989
4716833 Method of assembling a tanged charge holder Jan. 5, 1988
4694754 Multi-phase charge holder Sep. 22, 1987
4632034 Redundant detonation initiators for use in wells and method of use Dec. 30, 1986
4498391 Explosive mine breaking apparatus with arc-suppressing heat-dissipating fluid around the charge bodies Feb. 12, 1985
4438699 Method for remote positioning of explosive charges in mining voids Mar. 27, 1984
4406226 Non-electric delay blasting method Sep. 27, 1983
4382410 Explosive blasting method and means May. 10, 1983
4357873 Apparatus for destroying structures such as concrete walls Nov. 9, 1982

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