Abstract: A method of blasting hazardous substance or explosive in a pressure vessel is provided to improve efficiency while suppressing enlargement of the pressure vessel. To achieve it, the method includes an installing step of installing two or more articles to be treated at a certain spacing in the pressure vessel, an initial blasting step of blasting one of the articles to be treated, and a following blasting step of blasting the article to be treated next to the previously blasted article to be treated after a particular time from the instant of the previous blast. Each of the articles is blasted sequentially through the initial and following blasting steps.

Abstract: A self-contained grenade capable of dispersing a non-toxic obscurant composition, or various types of aerosol compositions such as pesticides or antimicrobial/sanitizing agents, is provided. The obscurant or other type of aerosol composition via an exothermic reaction. Release of the obscurant or other type of aerosol composition is effected in a controlled manner by creating heat via a heat producing composition comprising, for example, a thermite composition. The obscurant or other type of aerosol composition is absorbed into a heat transfer media disposed adjacent the heat producing composition. When the exothermic reaction occurs, the heat transfer media transfers the heat to the absorbed material, thereby providing a regulated thermal dispersion of same.

Abstract: A handgun comprised of a frame having a barrel with a muzzle end and a breech end. A slide is movable on the frame between one of a closed position and a blow-back position. A handgrip is pivotally mounted to the frame about an axis, wherein the handgrip is movable between a firing position and a storage position. A trigger guard is attached to the frame. The trigger guard is movable between a firing position and a storage position, wherein the trigger guard is collapsible relative to the frame.