Comminuting apparatus
AssigneePhiston Technologies, Inc.
InventorsM. Ali Ebadian, Jose Luis Rivero De La Guarda, JR., Allen C. Cuadra, Ryan D. Ortiz
Life of this patent
Estimating the term…
Abstract
A device for comminuting media materials that store sensitive information. The device is a rotating mill core with removable flat edged blades, a set of stacked bed knives and a screen. The mill core rotates in close proximity to the bed knives to shear the material being fed, and in close proximity to the screen in order to grate the material. A flywheel is attached to the mill core in order to conserve rotational energy and improve the efficiency of the device. A knurled roller is installed in the device that feeds the material into the knife mill as well as holds the material steady during the initial shear. Vacuum ports facilitate cleanup.
Claims14
A device for comminuting media materials comprising:
- a base member further defined by a chamber having a front wall, a rear wall, opposing side walls, a top wall assembly and a screen forming a bottom wall, said screen having a plurality of apertures constructed and arranged to allow passage of comminuted material;
- and a knife mill assembly secured to said base member and mounted for rotation about a fixed axis within said chamber, said knife mill assembly including a rotatable mill core with a central bore mounted to a shaft member having a proximate and distal end, said shaft member have a fixed axis extending through said opposing walls of said chamber with a fly wheel attached to said distal end and motor attached to said proximal end, said rotating mill core further including at least one straight edge horizontal mill cutter bed and at least one cutting blade insert extending horizontally along substantially the entire length of said mill core, said at least one cutting blade insert fixedly attached to said mill core extending axially outward;
- at least two bed knives in a stacked arrangement and fixedly attached to one of said wall assemblies;
- said bed knives positioned so that blade edges extend inward towards said rotatable mill core;
- said mill core rotating in proximity to said bed knives in order to create shearing surfaces;
- a roller assembly having a substantially cylindrical member rotationally mounted above said bed knife for advancing material towards said rotatable mill core, said roller positioned in proximity to top surface of said bed knife so that feeder material contacts said roller surface and said top surface of said bed knife;
- wherein said mill core rotates in proximity to said screen whereby said rotatable mill core grates material through said screen for disposal.
Dependencies are inferred from the claim text.