Patent ID: 7530509

Claim:
An improved manure-grinding fertilizer spreader comprising: at least two progressively bladed cylinders proximate a bottom of a mobile hopper having a grinder base in predetermined proximity to cutting edges of a plurality of progressive blades disposed circumferentially on an outside perimeter of the progressively bladed cylinders; at least two cutter axles to which the progressively bladed cylinders are attached concentrically; the at least two cutter axles are connected to one another via a connecting means; a discharge aperture in a bottom hopper portion that is downward from the grinder base; the discharge aperture having parallel sides that are oppositely disposed a distance for receiving a predetermined portion of the at least two progressively bladed cylinders; a rotational-power source in rotational communication with the at least two cutter axles for rotation of the at least two progressively bladed cylinders proximate the bottom of the mobile hopper; and a mobile-power attachment on the mobile hopper.