Patent ID: 7334775

Claim:
A device for forcibly opening an opening leaf ( 100 ) of width (L) having an opening part ( 102 ) and a fixed frame ( 104 ) such as a door or window, comprising at least: a length-extendable body ( 2 ) formed of two or more sliding parts ( 10 , 20 ) so that it can be adapted to suit the width (L) of the opening leaf, a drive-in wedge ( 12 ; 22 ) intended to be positioned between the frame ( 104 ) and the opening part ( 102 ), a parting ram ( 50 ) to allow the wedge ( 12 ; 22 ) to penetrate between the frame ( 104 ) and the opening part ( 102 ) so as to forcibly open the opening leaf ( 100 ), and a thrusting ram ( 30 ) placed substantially at right angles to the body ( 2 ), the rams ( 30 ; 50 ) being remotely operable using at least one remote control ( 80 ), characterized in that the thrusting ram ( 30 ) is a continuous-thrust percussion ram with repetitive reciprocating action.