Abstract: The present invention relates to an automatic shredder without choosing the number of paper to be shredded which comprises a shredder core and an automatic paper feeding device, the automatic paper feeding device comprises a driving mechanism, a paper support box, a pick-up mechanism and a paper press box, the driving mechanism is fixed on the shredder core and connected with the pick-up mechanism for driving the pick-up mechanism, the paper support box comprises a first zone and a second zone, the pick-up mechanism is positioned between the first zone and the second zone and fixed to the paper support box, and its paper feeding direction is towards the second zone, one end of the paper press box is pivoted with the paper support box, the other end of the paper press box is connected detachable with the paper support box, the paper support box is fixed on the shredder core, and the second zone has a paper inlet positioned above the blade assembly of the shredder core, a magnet is positioned in the first zone,

Abstract: Thin shredder blade having blade points without steps, including blade body and cutting part located on periphery of blade body and includes a blade point. The cutting part includes a primary protrusion protruding from the cutting part. The primary protrusion includes a top, an inclined plane extending between the top and blade point, and an acute angle formed by inclined plane and blade body. The plane is an inverted triangle. The cutting part further includes first and second hemlines extending from the blade body and intersecting to the blade point. A first plane extends between the top and first hemline and intersects with the inclined plane. The blade body includes a large protrusion which protrudes in the same direction as the primary protrusion. The blade sets formed by the thin blades and the manufacturing method of the thin blades are provided.

Abstract: Thin shredder blade having blade points without steps, including blade body and cutting part located on periphery of blade body and includes a blade point. The cutting part includes a primary protrusion protruding from the cutting part. The primary protrusion includes a top, an inclined plane extending between the top and blade point, and an acute angle formed by inclined plane and blade body. The plane is an inverted triangle. The cutting part further includes first and second hemlines extending from the blade body and intersecting to the blade point. A first plane extends between the top and first hemline and intersects with the inclined plane. The blade body includes a large protrusion which protrudes in the same direction as the primary protrusion. The blade sets formed by the thin blades and the manufacturing method of the thin blades are provided.

Abstract: Active protection system for a paper shredder, which includes an upper cover and a shedder plate on the upper cover. The paper shredder plate includes a touch structure, which engagingly interacts with a preferential power supply switch. When closed, the shredder plate prevents contact with the shredding blade. When opened, the shredder plate both initiates shredder normal operation, and prevents feeding of unexpected items into the shredder making accidental contact with the shredding blade. When an unexpected item contacts the safety structure, beneath the paper shredder plate, the protection system switches off the shredder power supply.

Abstract: A Programmable Arithmetic Logic Unit Cluster is claimed. The plurality of Programmable Logic Blocks (50) in the cluster are in a physically linear sequence; but, will process data in parallel when the data pathways permit. A physically linear and operationally parallel design is possible mainly due to an Internal Register Bus (30). A small subset of data from the Internal Register Bus (30) is modified by each Arithmetic Logic Unit (53). The greater chunk of information of the Internal Register Bus (30) passes, without changes made to the data, through a plurality of two-to-one-multiplexers (54) as data inputs, bypassing the Data Selection (52) and Arithmetic Logic Unit's (53) circuitry. Only the data specified as the Accumulator (41) and Carry History (31) are modified by the blocks (50). The Accumulator (41) and the Carry Output Line (44) are distributed back onto the Internal Register Bus (30) for subsequent blocks or for the Output Register File (79) by said two-to-one-multiplexers (54).

Abstract: The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive.

Abstract: The present invention relates to a new-type dual-passage paper feeding safety structure for shredders comprising a shredder upper lid, a dual-passage paper feeding safety cover plate and a touch safety switch, touch components are arranged on the dual-passage paper feeding safety cover plate, the shredder upper lid has a paper inlet corresponding to the dual-passage paper feeding safety cover plate and above the set of paper shredding blade shafts of the shredders, the dual-passage paper feeding safety cover plate is arranged in the paper inlet, the middle parts of two ends of the dual-passage paper feeding safety cover plate is connected rotatably with the shredder upper lid, the touch safety switch is fixed inside the shredder upper lid and cooperated with the touch components so that the touch components would touch the touch safety switch when the dual-passage paper feeding safety cover plate is rotated to open and work, more preferably, the middle parts of two ends of the dual-passage paper feeding safet

Abstract: The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive.