A paper shredder with counter-rotating shredder blades coupled to a shredder motor, including a paper tray having a floor and being shaped to receive paper. The floor has an offset slot therein adjacent to the counter-rotating shredder blades. The engagement wheels partly protrude through floor, adjacent to the offset slot. The engagement wheels frictionally engage paper and turn towards the offset slot to force paper into the shredder blades. Also, a dentate catch disposed in each corner of the paper tray temporarily holds an affixment while a sheet of paper held by the affixment is being frictionally engaged by the engagement wheels to enter the slot for comminution. A PAPER FULL sensor, a DOOR OPEN sensor, an OVERLOAD sensor, an OVERHEAT sensor, a paper-in-tray sensor, a paper-at-entry sensor, a SAFETY LOCK sensor, and a cover door open/closed sensor are provided, as are AUTO and MANUAL modes of operation.

A meat grinder safety cover attachment for a meat grinder grinding head that prevents an operator of the meat grinder from entering hand or fingers into the inlet throat of the grinder where a turning auger starts the grinding of meat. The grinder safety cover has two functional states: a normally closed state and an actuated open state. Moving from the normally closed state to the actuated open state is initiated by applying a linear force by depressing a slide plunger pin that engages the slide covers covering the grinder head inlet throat. The slide plunger pin and slide covers are configured to convert the linear motion of the slide plunger pin to rotational motion of the slide covers, opening the slide covers and uncovering the inlet throat of the grinder head. Removing the depression force on the slide plunger pin, the torsion spring attached to the slide covers and a return spring in the slide plunger pin then return the safety cover to its normally closed position.

A shredding module of a shredding apparatus is disclosed. The shredding module includes a shredder cassette receiver and a shredder cassette received within the shredder cassette receiver. The shredding cassette includes two shredding shafts arranged in parallel and rotatable about respective rotation axes, and two sets of fingers that cooperate with the two shredding shafts to shred material. The shredder cassette is slidably movable in an axial direction of the respective rotation axes into and out of the shredder cassette receiver.

A machine for shredding inorganic waste is described, comprising: first loading means; a shredding chamber; second shredding means; third unloading means; fourth electronic control means; fifth means for limiting the resisting torque applied to the motor, in such a way as to avoid current absorption that exceeds the capacity of the power supply network, said fifth means comprising one or more mobile elementsand a plurality of blades. A method for operating the machine is also described.

The current invention is a Particle-lizer Mechanism for Destroying the Functionality of Data Bearing Components of a Solid-State Data Bearing Device. This particle-lizer mechanism provides destruction of data bearing components from solid-state data bearing devices by reducing the components to particle size of 2 mm or smaller and ensures accurate particle size by use of a screening system to render the data unusable using a simple one stage process. Since there are so few mechanical components in the design, a particle-lizer mechanism can last 100 times longer than a shredding machine with a fraction of the complexity to build. This particle-lizer mechanism is portable and is intended to be used within the customer's secure confines of a data center or enterprise facility. This particle-Ilzer mechanism includes a particle collection system and a filtration system to preserve air quality where it is located.

The present invention discloses a shredding device. The shredding device according to one or more embodiments of the present invention comprises: a shredding body for shredding materials; a frame for supporting the shredding body; and a power supply device that provides electric power to the shredding body. The shredding body comprises a housing, and the housing is provided with a power supply chamber for accommodating at least part of the power supply device. The shredding device according to the present invention features a compact structure, and is easy and safe to operate.

A meat grinder safety cover attachment for a meat grinder grinding head that prevents an operator of the meat grinder from entering hand or fingers into the inlet throat of the grinder where a turning auger starts the grinding of meat. The grinder safety cover has two functional states: a normally closed state and an actuated open state. Moving from the normally closed state to the actuated open state is initiated by applying a linear force by depressing a slide plunger pin that engages the slide covers covering the grinder head inlet throat. The slide plunger pin and slide covers are configured to convert the linear motion of the slide plunger pin to rotational motion of the slide covers, opening the slide covers and uncovering the inlet throat of the grinder head. Removing the depression force on the slide plunger pin, the torsion spring attached to the slide covers and a return spring in the slide plunger pin then return the safety cover to its normally closed position.

A wood chipper comprising a chamber in which wood is chipped, at least one roller for feeding of the wood into the chamber, and an hydraulic motor. Hydraulic lines flow connect a hydrostatic pump to the hydraulic motor for effecting rotation of the at least one roller for driving the at least one roller. A member on the wood chipper has splined projections for engaging splined projections on a member on the tractor to effect rotation by the member on the tractor of the member on the wood chipper in order for the wood chipper to receive mechanical power from a power take-off of the tractor for operation of the hydrostatic pump.

A wood chipper comprising a chamber in which wood is chipped, and a pair of rollers for feeding of the wood into the chamber. One of the rollers is a smooth roller and may or may not be an idle roller, and an other of the rollers is driven and has cutting elements thereon. One or more pressurized gas springs are attached to the rollers to apply a predetermined pressure to the rollers to cause the cutting elements to bite into the wood fed between the rollers. The cutting elements are blades each of which is un-notched in a direction radially of the other roller and each of which extends over substantially the entire length of the other roller.

Methods and apparatuses for producing spherical metallic powders through continuous ball milling are described. The apparatus comprises a comminution component including an inlet to receive a metallic material at a first region within the comminution component and an outlet to dispense the metallic powder from a second region within the comminution component. The apparatus further comprises a plurality of grinding components to grind the metallic material, the plurality of grinding components being arranged within the comminution component. The apparatus comprises a drive component, connected with the comminution component, to induce movement of the metallic material and the plurality of grinding components within the comminution component such that the metallic material is fragmented through contact with the plurality of grinding components at the first region and an external surface of the fragmented metallic material is altered at the second region to produce the metallic powder.