US Patent 7644656 Liquefier

Conventional type liquefier appliance that incorporates an anti-drip system consisting of a “T”-shaped spout seal, besides the inclusion of a series of non-slip strips on the connecting gears between the drive unit and the rotary elements, which enable it to come to a sudden stop without the inertia of said elements forcing them in an upward direction, furthermore the grater disc is not fixed to the drive element by a through-screw but rather said screw is welded to its under side, while in addition the push piston terminates in a concavity which engages the piece to be liquefied during use and wherein said piston may be replaced by a feed hole reducer piston.