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 cam coupled to the moveable blade is in communication with a power switch plunger. When the shredder is in the NORMAL/ON position, a throat gap is in its normal position and the cam positions the plunger to power to the motor. When the shredder is in the JAM CLEAR/OFF position, the throat gap is in its wide position and the cam positions the plunger to remove power to the motor. A method is provided, including providing a moveable blade; sensing a throat jammed condition; releasing the moveable blade; moving the moveable blade to a wide gap position; sensing the moveable blade in the wide gap position; turning off the motor in response to the sensing.

An illustrated view of an exemplary cardboard shredder for compressing and shredding cardboard is presented. The cardboard shredder provides a shredder for cardboard to facilitate recycling while reducing storage space needed before cardboard enters a recycling stream and cutting out the middleman, thus the recycler receives uncontaminated cardboard since it is not mixed in with other materials. The manufacturer receives clean shredded cardboard for reuse, reducing headcount for the plant by reducing and eliminating their shredders being jammed with plastic. The cardboard shredder further saves space in residential and commercial spaces and increases intervals between container emptying, thus making recycling of cardboard easier while saving time and money. The carboard shredder is designed to fit over standing large garbage cans to eliminate double handling of the cardboard prior to recycling. The cardboard shredder further accommodates larger sizes of product to be shredded than a conventional paper shredder encouraging recycling of cardboard.

A cardboard shredder provides a shredder for cardboard to facilitate recycling while reducing storage space needed before cardboard enters a recycling stream cutting out the middle man, thus the recycler receives uncontaminated cardboard since it is not mixed in with other materials. The manufacturer receives clean shredded cardboard for reuse, reducing headcount for the plant by reducing and eliminating their shredders being jammed with plastic. Thus, an improvement in efficiency and reduction in costs of material and water.

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 mechanical bin-full device for a paper shredder with a bin, having a curved, perforated T-blade sensor on a cylindrical body partially covered with a metal sheet. The T-blade is pendent into the bin. Metal contacts are placed on the paper shredder near the metal sheet, forming a switch, which is coupled to a motor control circuit for the shredder motor. The T-blade is pushed by paper shreddant and rotates the cylinder body as paper shreddant fills the bin. When the bin becomes full, the T-blade is positioned so that the metal contacts touch the metal sheet, closing the control circuit switch, and causing the motor to cease operating. The control circuit can include a microcontroller coupled to the motor, or a transistor-based driver coupled to a motor relay.

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 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.

A lottery ticket destruction apparatus includes a housing holding a motor with a pinion, sensors for detecting insertion of lottery tickets and starting up the motor, a first set of sheet-transfer rollers for flattening inserted lottery tickets and delivering flattened lottery ticket through the sensors, a set of scissor action rotary cutters with spiral cutting edges for cutting lottery tickets into small pieces through a scissor action, a second set of sheet-transfer rollers for delivering flattened lottery tickets from the sensors to the set of scissor action rotary cutters for cutting, and a transmission gear set drivable by the pinion to rotate the first and second sets of sheet-transfer rollers and the set of scissor action rotary cutters at different speeds, and shield plates surrounding the scissor action rotary cutters to shield cutting dust.

The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. A paper feed mechanism feeds paper that is separated from the stack by a stack separation mechanism to the cutter elements. The feed and separation mechanisms can be activated by rotation of the cutter elements. In one embodiment, the stack separation mechanism moves in an alternating manner between retracted and extended positions to disengage and engage and insert the stack to separate (with its edge) paper therefrom to feed to the feed mechanism for shredding. The paper stack separation mechanism can move in an non-undulating manner relative to the stack. A device for stripping stapled pages, a pivotable support plate, and pressure plate can also be used, as well as a number of sensors.