Explosive actuated battering ram

B - Operations – Transporting – 25 – D

Patent

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Details

B25D 9/11 (2006.01) B25D 17/02 (2006.01) B25D 17/24 (2006.01)

Patent

CA 2169363

A battering ram device is provided for allowing quick and forcible entry through locked closures. The device includes a ram (1) that slides within and partially out of a housing (2, 3). The ram (1) is connected to a piston (7) which also slides within a cylindrical housing (6). The housing (6) is connected to a firing mechanism (8) that uses an explosive cartridge (17) for driving the piston (7) forwardly and subsequently forcing the ram (1) partially out of its housing (2, 3) to deliver a blow to a closure. The piston (7) and cylinder (6) further include an energy absorbing mechanism (22, 23) for retarding the motion of the ram (1) once it penetrates through a closure. The ram (1) can be configured as a thin rectangular piece for allowing the ram (1) to fit between a door knob and jamb of most doors. Other ram configurations include a punch (31, fig. 7) for effectively knocking out a door lock of a steel or metal door, and a shearing head (41, fig. 8) for effectively cutting a steel cable, bar, or wire.

Ce dispositif formant bélier permet de forcer rapidement des portes ou autres fermetures verrouillées. Il comprend un bélier (1) qui coulisse à l'intérieur d'un corps et en partie hors de ce corps (2, 3). Le bélier (1) est accouplé à un piston (7) coulissant également dans un corps cylindrique (6). Le corps (6) est accouplé à un mécanisme d'amorçage (8) qui utilise une cartouche explosive (17) pour entraîner le piston (7) ver l'avant et pousser ultérieurement le bélier (1) en partie hors du corps (2, 3) où il se trouve, afin d'asséner un coup à une porte ou autre. Le piston (7) et le cylindre (6) comprennent en outre un moyen d'absoption d'énergie (22, 23) ralentissant le mouvement du bélier (1) une fois qu'il a défoncé une porte. Le bélier (1) peut se présenter sous forme d'un élément rectangulaire et mince, lui permettant de s'adapter entre la poignée et le montant de presque toutes les portes. D'autres configurations de bélier comprennent un dispositif de défonçage (31, fig. 7) permettant de faire sauter la serrure d'une porte métallique ou d'acier, ainsi qu'une tête de cisaillement (41, fig. 8) permettant de couper efficacement un fil, une barre ou un câble d'acier.

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