Patent ID: 6244568
Filing Date: 2001-06-12
Classification: A62B,Y10S

Abstract:
A dual thrust acting rescue spreader tool comprising:a) linear driving means having a moveable ram, creating a pushing and a pulling action,b) a stationary yoke connected to said linear driving means providing a mounting platform thereupon,c) a pair of opposed spreader arms each having a first end and a second end, with each first end pivotally affixed to said stationary yoke such that both arms are free to swivel from said stationary yoke,d) a pusher cam yoke on one end of the movable ram of said linear driving means having a triangular shaped body contiguously engaging opposed spreader arms first ends,e) roller means disposed within each spreader arm rotatably interfacing with the triangular shaped body pusher cam yoke producing an initial cam action thrust of from 45% to 65% of said spreader arms travel for spreading the arms away from each other when the pusher cam yoke is urged in an outward direction from the linear driving means, andf) a plurality of toggle links each attached on one end to said stationary yoke and on the other to said pusher cam yoke producing a secondary thrust after the initial cam action is completed spreading the arms to a maximum distance within the tools geometrical limits.