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Class Information
Number: 102/308
Name: Ammunition and explosives > Blasting > Detonation wave modifying > Shaped charge or charge with detonation wave cavity modifier > Tandem charge
Description: Subject matter wherein there are plural explosive charges, axially aligned, one next to the other, at least one being a shaped charge, the detonation of the one charge reinforces the other charge to produce a additive detonating effect at the same location.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8490686 Coupler compliance tuning for mitigating shock produced by well perforating Jul. 23, 2013
8302534 Radial-linear shaped charge pipe cutter Nov. 6, 2012
8291826 Deflagration to detonation transition device Oct. 23, 2012
8286555 Deflagration to detonation transition device Oct. 16, 2012
8161880 Deflagration to detonation transition device Apr. 24, 2012
8033224 Spiral linear shaped charge jet Oct. 11, 2011
7987789 Method for reducing the amount of ammunition types to be used and an ammunition device Aug. 2, 2011
7984674 Perforating charge for use in a well Jul. 26, 2011
7926423 Single-step contact explosive device for breaching reinforced walls and method of use therefor Apr. 19, 2011
7878119 Perforating charge for use in a well Feb. 1, 2011
7762193 Perforating charge for use in a well Jul. 27, 2010
7661367 Radial-linear shaped charge pipe cutter Feb. 16, 2010
7493861 Tandem shaped charge warhead having a confined forward charge and a light-weight blast shield Feb. 24, 2009
7273011 Structure of a projectile Sep. 25, 2007
6962202 Casing conveyed well perforating apparatus and method Nov. 8, 2005
6959893 Light fighter lethality seeker projectile Nov. 1, 2005
6443068 Ammunition body, a method for inserting, and its use Sep. 3, 2002
H2025 Serial output warhead Jun. 4, 2002
H1930 Precursor warhead attachment for an anti-armor rocket Jan. 2, 2001
6032583 Ammunition unit in the form of a shell Mar. 7, 2000
5952604 Shell with multi-charges Sep. 14, 1999
5859383 Electrically activated, metal-fueled explosive device Jan. 12, 1999
5780766 Guided missile deployable as mortar projectile Jul. 14, 1998
5750917 Warhead May. 12, 1998
5621185 Warhead Apr. 15, 1997
5614692 Shaped-charge device with progressive inward collapsing jet Mar. 25, 1997
5565647 Warhead with sequential shape charges Oct. 15, 1996
5561261 Tandem warhead with a secondary projectile Oct. 1, 1996
5415105 Tandem warhead with piezoelectric percussion fuses May. 16, 1995
5394804 Explosive device with a hollow charge, designed for penetrating armor protected by active primary armor Mar. 7, 1995
5377594 Flexible linear explosive cutting or fracturing charge Jan. 3, 1995
5370055 Three-phase hypervelocity projectile launcher Dec. 6, 1994
5247887 Dynamic method for enhancing effects of underwater explosions Sep. 28, 1993
5198615 Fuzing system for tandem demolition warheads Mar. 30, 1993
5166469 Delay fuse for sequentially detonating shaped charges Nov. 24, 1992
5111746 Multiple stage munition May. 12, 1992
5090324 Warhead Feb. 25, 1992
5044280 Linear hollow charge devices Sep. 3, 1991
5038683 High explosive assembly for projecting high velocity long rods Aug. 13, 1991
5003883 Lightweight blast shield Apr. 2, 1991
H867 Tandem warheads separated by missile booster motor Jan. 1, 1991
4955939 Shaped charge with explosively driven liquid follow through Sep. 11, 1990
4949642 Funnel or bowl shaped insert for hollow charges and method and mould for its production Aug. 21, 1990
4901619 Shaped charge with barrier produced in situ Feb. 20, 1990
4854240 Two-stage shaped charge projectile Aug. 8, 1989
4729318 Explosive plane-wave lens Mar. 8, 1988
4714022 Warhead with tandem shaped charges Dec. 22, 1987
4696234 Device for destroying water mines and mine-sweeping method Sep. 29, 1987
4693181 Linear cutting charge Sep. 15, 1987
4606272 Initiation delay system for warheads with tandem mounted shaped charges Aug. 19, 1986

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