An auto-feed paper shredder is configured for placement below the surface of a desk. The auto-feeder consists of a drawer located on the front surface of the shredder. This drawer is slid out to insert a stack of documents to be shredded. When the door is slid back into the shredder and the shredding system is activated, feed rollers draw sheets of paper either from the top or the bottom surface of the stack and feed the sheets into a conventional paper shredding mechanism. An input slot is provided to insert single sheets of paper when the auto-feeder is not being used.

An apparatus for paper shredding and compacting which includes a shredded paper storage portion, a movable disposed within the shredded paper storage portion, and a movable push rod.

A paper shredder includes a chassis on which an automatic paper feeding opening is defined, a paper shredding mechanism, a paper separating mechanism located adjacent to the automatic paper feeding opening, and a paper pickup mechanism located between the paper separating mechanism and paper shredding mechanism. The paper separating mechanism includes a first paper supporting board on which a fastening mechanism is provided and a paper separating board cooperating with the fastening mechanism. The paper pickup mechanism includes a holding bracket, a paper pickup roller axe, a plurality of paper pickup rollers sleeved on the axe, a second paper supporting board located below the plurality of rollers and secured onto the second paper supporting board, and a third paper supporting board located above a distal end of the second paper supporting board and connected with the paper separating mechanism.

The paper shredder simultaneously shreds both manually inserted sheets of paper and sheets of paper that are placed in an auto-feeder input tray. Immediately above the shredding mechanism the input path is bifurcated. One branch extends essentially straight up from the blades and leads to a manual input slot. A second branch extends at an angle towards the rear of the shredder where an auto-feed roller lies at the bottom of an auto-feed slot. When a stack of paper is placed into the slot, the bottom of the stack rests against the auto-feed roller which grasps the top sheet and pulls it under the roller. The roller then pushes the sheet down the angled throat where a curved surface bends the sheet downwards and into the shredding mechanism.

A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A shredder jam grip has a projection in communication with a power switch plunger. When the shredder is in the NORMAL position, a throat gap is in its normal position and the projection positions the plunger to power to the motor. When the shredder is in the JAM CLEAR position, the throat gap is in its wide position and the projection positions the plunger to remove power from the motor.

A lottery ticket destroying device includes a housing, roller cutters mounted in the housing, a transmission gear set mounted on one side of the housing, a motor mounted on one side of the housing for rotating the transmission gear set to drive the roller cutters to cut lottery tickets into pieces. Each roller cutter has a plurality of helical shear grooves recessed into the roller cutter surface thereof. Each helical shear groove has a groove bottom surface, a vertical shear surface located on one side of the groove bottom surface and connected to the roller cutter surface and a chip-discharge sloping surface located on an opposite side of the groove bottom surface and connected to the roller cutter surface. Moreover, one end of the shaft of one of the roller cutters is combined with an elastic member to prevent the two roller cutters from being stuck.

A coarse crusher includes a coarsely crushing unit configured to coarsely crush a sheet piece having an elongated shape, a hopper configured to feed the sheet piece to the coarsely crushing unit through a feed opening, and a posture adjuster configured to adjust posture of the sheet piece. The hopper includes two guide plates facing each other with the feed opening therebetween and configured to guide the sheet piece to the coarsely crushing unit and two coupling plates coupling the two guide plates. The posture adjuster includes a protrusion disposed on at least one of the coupling plates and protruding toward an inner side of the hopper. The posture adjuster is configured to come in contact with the sheet piece being coarsely crushed to adjust the posture of a portion of the sheet piece that is remote from the coarsely crushing unit.

A shredding machine for domestic or office use having a feed passage 3 leading to a cutting mechanism 10, 11 powered by an electric motor, has a thickness measuring device 15 for measuring the thickness of bundles of paper fed through the feed passage and the machine is controlled by a microprocessor which receives signals from the thickness measuring device and prevents the cutting mechanism from being energised if the thickness measured is above a threshold determined by the microprocessor. The thickness gauging device is deactivated during shredding until the material is shredded so that rippling or flapping of the material within the feed passage will not cause false readings as to the amount of material inserted into the feed passage.

An apparatus for paper shredding and compacting which includes a shredded paper storage portion, a movable ram disposed within the shredded paper storage portion, and a movable push rod.

An electronic file cabinet, including a main body, an input unit disposed on the main body to receive an input from a user, a plurality of storage units disposed within the main body to store at least one of a paper, a document, and a file folder therein, and a paper receiving slot to receive and introduce into the main body the at least one of the paper, the document, and the file folder, such that the input routes the at least one of the paper, the document, and the file folder into a predetermined one of the plurality of storage units.