Patent ID: 7426811

Claim:
A clip apparatus for the closing of sausage-shaped packing casings by clips which are set and closed in a filling-free region of the casing, by a first work tool and a second work tool which are movable toward and away from one another in order to deform an open clip to a closed clip, the apparatus comprising a drive for moving the first work tool and the second work tool; a control for controlling the drive; and a measuring device connected to the control for measuring an effective force between the first work tool and the second work tool, wherein the control compares the effective force to a first threshold value and to a second threshold value set higher than the first threshold value, and wherein the control is arranged to complete the closing of the clip and stop the drive at a predetermined end position when the effective force reaches the first threshold value, and the control is arranged to stop the closing of the clip and reverse the drive by a predetermined amount when the effective force reaches the second threshold value.