E-Z Breach® products relate generally to devices for breaching structures, and more particularly to flexible, fillable, and/or inflatable bladders, commonly called "breach bags" or "breach bladders" and also known as "water impulse charge bladders" and "water tamp charge bladders", for use with explosive charges for breaching locked or barricaded doors, walls, roofs and ceilings.
Special weapons and tactic (SWAT) teams or other police and military personnel frequently use breaching apparatus to gain entry into locked and barricaded buildings, where criminals, terrorists, hostages, drug caches and the like are located. SWAT teams routinely breach doors quickly by using battering rams, and/or explosive charges. These devices can be employed singly or in combination to break the lock or hinges, or even to demolish the door frame itself.
It is known to use explosives to breach doors, but it is challenging to fashion a charge sufficient to blow open a door without causing injury to building occupants and while minimizing damage to property.
Explosive charges can be shaped and the blast wave concentrated by reinforcing certain areas surrounding the charge. A shaped charge, by design, focuses its energy into a narrow blast trajectory, making it very accurate and controllable. When size is added to that accuracy, the effect can be dramatic.
Shaped charges were first developed after World War I to penetrate tanks and other armored equipment.