Patent ID: 7118471

Claim:
A Z-blade apparatus for use in a dual blade loin knife assembly of a loin puller machine to create a loin portion, comprising: an elongated blade member having distinct blade portions along its length including, in order, an upper mount portion adapted to mount to a blade mounting block, an upper central portion normally not engaged to a meat carcass during operation, a lower central portion normally engaged to a meat carcass during operation, and a lower mount portion adapted to mount to a blade mounting block, at least the upper central and lower central portions formed with a cutting edge, the lower central portion formed of further portions including a shelf portion adapted to create a cut belly shelf on the carcass, and a belly cut portion adapted to cut off the belly, the shelf portion further comprising an upper shelf portion adapted to divide the finger lean meat and cut adjacent the feather bones, and a lower shelf portion adapted to cut closely adjacent, but not into, the loin eye meat of the carcass, the shelf portion adapted to regularly cut a belly shelf on the carcass of approximately 2.7 inches in length.