A shaped charge is described herein, comprising a case; an energetic material disposed in the case; a metallic liner with a first surface disposed in contact with the energetic material and a second surface that is opposite from the first surface, and that defines a cavity; and an attenuator disposed in the cavity.

An annular shaped-charge and blasting housing and a use method thereof are provided. The annular shaped-charge and blasting housing includes a PVC segment and multiple notch grooves. Grooves are notched on a W-shaped PVC segment formed by machining. The notching angle of the groove and the spacing distance between the grooves can be adjusted according to use requirements. And, the W-shaped PVC segment after being cut may not be limited to have eight notch grooves, and the number of the notch grooves of a single one PVC segment can be adjusted according to actual working conditions. The PVC segment can be folded and closed to form the annular shaped-charge and blasting housing. Therefore, the housing of the embodiments is simple in production, the linear segment can be bended and folded by utilizing the plasticity of the PVC material. The manufacturing process of the housing is simple and feasible. The housing of the embodiments is convenient to use and can meet the requirements of the annular shaped-charge cutting in blasting engineering. Meanwhile, the housing of the embodiments are widely applied. Further, the housing is not only applicable to annular shaped-charge cutting for the bottoms of holes to improve the planeness of the tunnel faces or the berm for the bench blasting, but also applicable to the cut blasting to improve the cut effect.

An annular shaped-charge and blasting housing and a use method thereof are provided. The annular shaped-charge and blasting housing includes a PVC segment and multiple notch grooves. Grooves are notched on a W-shaped PVC segment formed by machining. The notching angle of the groove and the spacing distance between the grooves can be adjusted according to use requirements. And, the W-shaped PVC segment after being cut may not be limited to have eight notch grooves, and the number of the notch grooves of a single one PVC segment can be adjusted according to actual working conditions. The PVC segment can be folded and closed to form the annular shaped-charge and blasting housing. Therefore, the housing of the embodiments is simple in production, the linear segment can be bended and folded by utilizing the plasticity of the PVC material. The manufacturing process of the housing is simple and feasible. The housing of the embodiments is convenient to use and can meet the requirements of the annular shaped-charge cutting in blasting engineering. Meanwhile, the housing of the embodiments are widely applied. Further, the housing is not only applicable to annular shaped-charge cutting for the bottoms of holes to improve the planeness of the tunnel faces or the berm for the bench blasting, but also applicable to the cut blasting to improve the cut effect.

A tactical communications apparatus is used to establish secure, reliable communications between a forward-deployed communications station and any designated second communicator during a building siege or hostage situation. At least one communications device, at least one processing unit, a transceiver array, and a power supply are mounted to a casing. The casing allows the tactical communication apparatus to be tossed into an area. The transceiver array wirelessly connects to at least one remote terminal, enabling communication via the at least one communication device. The casing also contains a plurality of discrete surveillance devices mounted into the casing to enable an operator to remotely surveil the area around the casing. Further, the tactical communication apparatus also supports at least one offensive device operated via the at least one remote terminal. The at least one offensive device may be activated as cover for responders if communications fail to resolve a situation.

A tactical communications apparatus is used to establish secure, reliable communications between a forward-deployed communications station and any designated second communicator during a building siege or hostage situation. At least one communications device, at least one processing unit, a transceiver array, and a power supply are mounted to a casing. The casing allows the tactical communication apparatus to be tossed into an area. The transceiver array wirelessly connects to at least one remote terminal, enabling communication via the at least one communication device. The casing also contains a plurality of discrete surveillance devices mounted into the casing to enable an operator to remotely surveil the area around the casing. Further, the tactical communication apparatus also supports at least one offensive device operated via the at least one remote terminal. The at least one offensive device may be activated as cover for responders if communications fail to resolve a situation.

A lightweight energetic weapons pod 2 that integrates to unmanned aerial systems 1 that enables the operator the ability to engage targets without flight degradation. The device utilizes an energetic weapons pod 2 that may be reloaded to support sustained combat operations. The ability of the device to function as intended is based on explosive mitigation compression zones and recoilless configurations that allow drone survivability during detonation events.

Examples relate to a mounting device for an explosive charge, comprising a first layer comprising a first foam material, and a second layer comprising a second foam material. The first layer comprises a first surface for facing a target and a second surface adjoining the second layer. The second layer comprises a recess for receiving at least one of the explosive charges.

Examples relate to a mounting device for an explosive charge, comprising a first layer comprising a first foam material, and a second layer comprising a second foam material. The first layer comprises a first surface for facing a target and a second surface adjoining the second layer. The second layer comprises a recess for receiving at least one of the explosive charges.

A method and apparatus for providing a universal plug in cartridge detonator capability in box-by-box perforating guns.

A detonating cord for using in a perforating gun includes an explosive layer and an electrically conductive layer extending around the explosive layer. The electrically conductive layer is configured to relay a communication signal along a length of the detonating cord. In an embodiment, a protective jacket extends around the electrically conductive layer of the detonating cord. The detonating cord may be assembled in a perforating gun to relay a communication signal from a top connector to a bottom connector of the perforating gun, and to propagate a detonating explosive stimulus along its length to initiate shaped charges of the perforating gun. A plurality of perforating guns, including the detonating cord, may be connected in series, with the detonating cord of a first perforating gun in communication with the detonating cord of a second perforating gun.