Patent ID: 7886570

Claim:
A crimping tool comprising: a first, fixed, jaw member; a second, moving, jaw member pivotally connected to the first jaw member at a first pivot location; a first moving handle pivotally connected to the second jaw member at a second pivot location; and a link movably connected at a first end to the first handle at a third pivot location and pivotally connected at an opposite second end to the first jaw member at a fourth fixed pivot location; wherein the link first end comprises an aperture which defines first and second positions of the link first end, the link first end being movable between the first and second positions relative to the third pivot location; and wherein a pivot pin is positioned through the aperture that connects the link first end and the first handle; a second fixed handle rigidly connected to the first fixed jaw; a first biasing member to urge the link first end from the first position to the second position, producing an audible sound; wherein the first handle is configured to rotate in a first rotational direction toward the second handle to drive the first handle first end comprising the second and third pivot locations and the link through the third pivot location to rotate the second jaw member about the first pivot location in the first rotational direction, and to rotate the link in an opposite second rotational direction about both the fourth pivot location; the first and second jaw members being configured to close a first distance when the link first end is in the first position and to further close a second distance when the link first end is in the second position; wherein the first biasing member is configured to urge the third link first end from the first position to the second position when a driving force on the handle is released, such that jaw positions remain essentially the same at the first closed distance; and wherein a second biasing member urges the second jaw in said first rotational direction to assist closing together of the first and second handles and to assist movement of the link first end between the first and second positions; wherein the first, moving, handle moves laterally away from the first pivot location during full opening of the jaws; wherein the second end of the link abuts the first jaw member or the second, fixed, handle when the first handle is moved to fully open, such that the link first end is set at the first position; and wherein the aperture is configured such that the pivot pin remains at the first position of the link first end when the handles and jaws are closed the first distance.