A recoil managed disruptor includes a disruptor device having a barrel from which a slug of material is fired. A piston is mechanically coupled to the disruptor device. A housing which supports the disruptor on a positioning device includes a deformable recoil absorber (DRA) constraint. The DRA constraint is configured to receive a sacrificial DRA structure comprised of a semi-rigid material. The piston is responsive to a recoil force produced when the disruptor device is fired to travel along an axial length of the housing and permanently deform the DRA structure within the DRA constraint.

A liquid jet ejection device is provided. The liquid jet ejection device has a flexible lumen having an intake end positioned to be in fluid communication with a liquid source, and an output end distal from the intake end. A pump is coupled to the flexible lumen, the pump being actuatable to eject a liquid from the liquid source via the output end. A body structure extends from a handle and supports the output end of the flexible lumen, the body structure having a base form in which the output end of the flexible lumen is supported in a base pose relative to the handle, the body structure being deformable from the base form via contact with an object, the body structure returning to the base form upon withdrawal of contact.

A propellant driven disrupter (PDD) for disrupting an explosive target, comprising: a disrupter barrel having a breech and muzzle end; a projectile liquid or gas positioned in the barrel and extending a longitudinal distance in the disrupter barrel. The projectile liquid distal end is located farthest from the disrupter barrel breech end. A jet stabilizing projectile (JSP) is at least partially positioned in the barrel and operably contacts the projectile liquid distal end. The JSP has a JSP proximal end facing toward the disrupter barrel breech end and a distal end opposed to the JSP proximal end, wherein some or all of the JSP is positioned in the barrel. The PDD may contain the JSP, with an air region between the JSP distal end and the muzzle end, or an air region in an adapter that is connected to the muzzle end. Also provided are JSP's having improved flight stability for use with liquid or air-filled disrupters and methods of disrupting a target.

A fluid detection and reaction apparatus that physically responds to fluid contact. An open-ended chamber with a hinged cover holds a compressed springy material. The cover/lid is subjected to pressure by the compressed springy material to open the chamber end. A latch is formed between the chamber cover and the rim of the chamber end to generate a holding force that keeps the cover in place. The latch is formed by a water-reactive material that is adapted to will fail or sever under stress when wet. When water contacts the water-reactive material, the material tears, allowing the cover to open the chamber and release the springy material.

Provided herein are shaped charges for focusing a fluid mass and related methods of using the shaped charges for disruption of an explosive target. The shaped charge comprises a plastic shell having a special geometric shape configured to support a shape-conforming explosive. A cylindrical plastic body has an interior volume for containing a fluid and the plastic shell. The plastic body closed distal end has a geometric shape that is substantially matched to the shape of the plastic shell.

A spray nozzle comprises an outer tube, an inner tube disposed in the outer tube, and a sleeve mounted on the outer tube. A front end of the inner tube protrudes from the outer tube. A partition plate is disposed in the inner tube, the partition plate and the inner tube encircle to form an opened diversion groove with a plurality of notches. The inner tube is disposed with a plurality of guide vanes, a space between the outer tube and the inner tube is divided by the guide vanes into a plurality of diversion cavities communicating with the opened diversion groove through the corresponding notch. The sleeve makes sealing contact with the outer tube, the sleeve is provided with a sealing plate contacting and fitting with the opened diversion groove, and the sealing plate is provided with a water jet hole communicating with the opened diversion groove.

A system for rendering safe unexploded military ordnance items found underwater by use of immersible portable apparatus employing entrainment waterjet technology. The interior of the military ordnance item is accessed, and its internal contents are washed out and recovered. All services required to run the underwater apparatus are located above water.

An apparatus for rendering safe unexploded military ordnance items found on land by use of a portable apparatus employing entrainment waterjet technology. The portable apparatus includes a tool package containing a plurality of tools designed for accessing the interior of a unexploded ordnance item. The interior of the ordnance item is accessed, and its internal contents, which it typically an energetic material is washed-out and recovered.

A configurable fluid vessel comprising a flexible bladder (45) having a fluid port (47) through which a fluid such as water can be provided into the bladder (45). The fluid vessel further comprises an internal support frame (43) within the flexible bladder (45) to increase rigidity and preferably an urging means (44) for urging the flexible bladder (45) into a predetermined shape. The fluid vessel is collapsible for storage whilst retaining rigidity when in use. The fluid vessel is particularly suited for use in explosive jet disruptors (40) for tailoring the formation of a fluid jet.

A rotatable chair is provided with a launching member and a set of wheels. The chair includes: (i) a seat; (ii) a base; (iii) a plurality of framing members; (iv) a joystick; (v) a launching member; (vi) a nozzle; (vii) a set of motorized wheels; (viii) a directional wheel; (ix) an emergency stop button; and (x) a plurality of detachment devices to easily and quickly dismantle the chair into easily transportable parts. The base encloses a motor, a battery, a set of wheels and a water tank. The joysticks are configured to control the movement of the chair. The launching member can shoot a plurality of balls. The nozzles are configured to spray water from the water tank. The set of motorized wheels and the directional wheel are configured to move and rotate the chair, respectively. The emergency stop button is configured to stop the chair from moving.