Patent ID: 6092290
Filing Date: 2000-07-25
Classification: A62B,B23D,B26B

Abstract:
A hand manipulatable rescue tool comprising:a frame that defines a cam path;an anvil member having a first anvil that is attached to the frame and has a cutting edge and having a second anvil which has a cutting edge shaped the same as the cutting edge of the first anvil, the first and second anvils being spaced apart in fixed positions relative to one another such that the cutting edges face each other and lie in parallel planes;a cutting blade mounted between the anvils such that the blade and anvil member can be rotated relative to one another, the blade having two spaced-apart cutting edges that are positioned such that, when the blade is moved relative to the anvil member, the cutting edges of the blade overlap and travel along the cutting edges of the anvils;a pivot member;a follower that is connected to the pivot member and that is positioned to follow the cam path;a first link arm, one portion of the first link arm being pivotally mounted to the anvil member and another portion of the first link arm being pivotally mounted to the pivot member;a second link arm, one portion of the second link arm being pivotally mounted to the cutting blade and another portion of the second link arm being pivotally mounted to the pivot member such that both link arms can rotate relative to the pivot member;a hydraulic actuator connected to the frame and to the pivot member such that the actuator can be operated to move the pivot member such that the follower moves along the cam path, to vary the location of the pivot member relative to the anvil member and the cutting blade, to cause both the link arms to move relative to the frame, and to rotate the anvil member and the cutting blade in relation to each other;a conduit for delivering high pressure hydraulic fluid to the actuator;a pump for pumping hydraulic fluid through the conduit;an electric motor operatively connected to the pump;a battery to supply electrical current to the electric motor; anda manually operable switch that controls the flow of electrical current between the battery and the electric motor.