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| Number | Title | Issue Date |
| 8128013 | High efficiency single pass shredder-granulator The present invention is a shredder-granulator comprised of a plurality of rotary shear blades and a plurality of stationary bed knives fixedly attached to two counter-rotating shafts. The stationary bed knives are also secured to a frame. The shredder-granulator is... | 03/06/2012 |
| 8113454 | Paper shredding roller assembly A paper shredding roller assembly comprises of a left roller (1), a right roller (2) juxtaposed to said left roller (1), a plurality of left and right circular knives (3, 4) are attached axially to said left and right roller (1, 2)... | 02/14/2012 |
| 8091819 | New-type thin shredder blade having blade points without steps, blade sets and manufacturing method thereof 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 includ... | 01/10/2012 |
| 8038088 | Comminuting device with counter-rotating rotors A device for comminuting feedstock is provided that includes a cutting tool with a first rotor and at least one second rotor, each of which rotate around their longitudinal axis with an opposite rotation direction. Each rotor is provided with a number of cutting dis... | 10/18/2011 |
| 7931224 | Round cutter-blade of a paper shredder A round cutter-blade of a paper shredder includes a body having a surface, a periphery, and an opening formed therethrough; and at least one triangular shaped knife-edge that is integrally formed with the surface of the body and is turned over the periphery of the b... | 04/26/2011 |
| 7766268 | Shredder blade set with low resistance A shredder blade set with low resistance combines pressed blades and polished blades in various ways to form a shredder blade set. The shredder blade set has an appropriate friction for solving the problems with tilted or wrinkled paper due to insufficient friction ... | 08/03/2010 |
| 7661617 | Device and method for canceling sheet material The invention relates to an apparatus and a corresponding method for canceling, in particular destroying, sheet material, in particular bank notes. The apparatus comprises at least one canceling means (2) to which the sheet material (1) to be canceled ... | 02/16/2010 |
| 7641138 | Auxiliary unit of paper shredder cutting tools An auxiliary unit of paper shredder cutting tools is installed on cutting tools of a paper shredder. The auxiliary unit is formed by two L-shape plates located between two neighboring blades, an arc-shape hole at an end of each L-shape plate is hooked on a cutting b... | 01/05/2010 |
| 7637448 | Plastic center shredder disc A shredder for shredding data bearing substrates has a housing and shredder mechanism with cutter elements for shredding paper. The cutter elements are positioned along two shafts and interleave with the other when rotated relative to each other. At least one of the... | 12/29/2009 |
| 7469852 | Load transference in grinding disks The present invention relates to a disk section (1) for use in the construction of a grinding disk (10) such as may be used in wood hogging, chipping, or grinding apparatus. The disk section (1) is associated with a substantially wedge shaped re... | 12/30/2008 |
| 7445173 | Device for reducing vibrations and noises of a paper shredder A device for reducing vibrations and noises of a paper shredder uses a buffer device comprised of a rubber cylinder and a spring between core fixing frames and the housing base of the paper shredder. The buffer device is fixed by using screw and washer, enhancing th... | 11/04/2008 |
| 7422171 | Compartment of shredder for receiving piled-up sheets An improved compartment of shredder for receiving piled-up sheets, including: a pair of longitudinal movable paper press rollers applying pressure to the piled-up sheets continuously; a compartment for receiving piled-up sheets; a pair of rollers capable of feeding ... | 09/09/2008 |
| 7422172 | Paper shredder cutting tool having multiple cutting edges (-) A paper shredder cutting tool having multiple cutting edges (-) constructed from a pair of cylindrical rotary cutters, which are each separately mounted on a polygonal shaft, and a plurality of cutting blades are securely mounted on the shafts. A paper guide is conf... | 09/09/2008 |
| 7419110 | Comminuting apparatus and material receiving duct for comminuting apparatus A material receiving duct is provided for a comminuting apparatus. The material receiving duct includes a material entrance section, a material exit section, and a telescoping section. The material entrance section has a material entrance. The material exit section ... | 09/02/2008 |
| 7401747 | Blade pairs for a paper shredder Blade pairs for a paper shredder comprises two single blades with a flange rib on the surface of each blade, and the flange ribs of two single blades are against each other when shredding the paper. A hole is in the center of each blade. 2-8 corresponding blade poin... | 07/22/2008 |
| RE40442 | Solid waste comminutor A solid waste material comminuting system having a an electric motor for providing rotary motion, a pair of cutter stacks with cutter elements of one stack interleaved with cutter elements of the other, and gear means to transmit the rotary motion of the electric m... | 07/22/2008 |
| 7387268 | Document destroyer with individual sheet feeding for stacked sheet material A method for destroying stacked sheets according to which the sheets are mechanically individualized, grasped and cut. To this end, the down-most individual sheet in the stack is grasped in its center section from below, is folded and removed from the stack as a par... | 06/17/2008 |
| 7387270 | Lubricating pack having venting holes and specifically designed for paper shredders A lubricating pack specifically designed for paper shredders, including a piece of oiled paper saturated with lubricant placed between two jackets that are each provided at an inner layer thereof with an oil-seepage-proof film. The two jackets are then formed with a... | 06/17/2008 |
| 7377201 | Food processing apparatus for forming strips, slices and cubes A food processing apparatus comprises a first and second shaft and first, second, third and fourth subsets of blades. The first and second subsets of blades are mounted to the first shaft. The blades of the first subset of blades are separated by a first displacemen... | 05/27/2008 |
| 7360731 | Shredder The improvements relate to shredders for paper and the like having a shredding mechanism with an opening through which shredded material passes out of the shredding mechanism, a compactor plate located beneath the shredding mechanism and including an opening, and a ... | 04/22/2008 |
| 7354012 | Round undulating blade and blade module for shredder The present invention relates to a round undulating blade for shredder, where a sheet metal is integrally formed into a round undulating blade to serve as the blades for constructing a blade module. The blade includes: a periphery; an undulating blade flank includin... | 04/08/2008 |
| 7350387 | Tooling assembly A tooling assembly 10 having a first set of blades which are formed from a first material and a second set of blades which are formed from a second material. More particularly, each carbide blade of each member 62, 64, 66, and 68 is operatively ... | 04/01/2008 |
| 7341000 | Slipsheet compactor system A slip-sheet compactor for an imaging device with automatic media handling capabilities provides a two-stage compaction for a slipsheet removed from a media sheet to be imaged. A pair of rollers advances the slipsheet into a pre-compression chamber effecting a first... | 03/11/2008 |
| 7337999 | Document shredder with a continuously wound vinyl bag A document shredder with a continuously wound vinyl bag, includes a shredding portion, a collection portion and a cover case. The shredding portion includes an intermediate plate having a drop opening through which the shredded strips of paper fall, and in which a c... | 03/04/2008 |
| 7334748 | Method and apparatus for granulating plastic A granulator has a first coarse cutting stage operating at between 5 and 45 rotations per minute and a second fine cutting stage operating at two to ten times the speed of the first stage. Since granulate exiting the second stage is uniformly divided, the granulator... | 02/26/2008 |
| 7328867 | Blade for a paper shredder cutting tool A blade for a paper shredder cutting tool that includes an improved structure for one of two blades of each cutter of two rotary cutters of a paper shredder cutting tool. A protruding ring protrudes from a rim of a center hole of the blade, and the protruding ring a... | 02/12/2008 |
| RE40042 | Dual-functional medium shredding machine structure This invention is related to a dual-functional medium shredding machine structure, specifically designed for shredding or destroying paper printed with data to be destroyed, optical discs containing data to be destroyed, or expired credit cards. This invention mainl... | 02/05/2008 |
| 7325762 | Paper guiding chute for a paper shredder The device consists of a paper guiding part formed by a pair of substantially parallel plates spaced with a slot for guiding the paper and a flange for attachment to the shredder. The paper guiding part of the chute may be hinged to the flange for tilting the guidin... | 02/05/2008 |
| 7311277 | Shredder apparatus and shredding method When a printing paper to which an IC chip storing secret information is attached is discarded, a shredder applied voltage to the IC chip by a discharging unit to destroy the IC chip and to make it impossible to read the secret information therefrom. Thereafter, a sh... | 12/25/2007 |
| 7311276 | Shredder with proximity sensing system The present invention relates to a shredder that includes a proximity sensing system to sense the presence of a person, animal, or object near cutting elements of the shredder. ... | 12/25/2007 |
| 7311279 | Self cleaning shredding device having movable cleaning rings A self cleaning cutting assembly is provided, having an array of counter rotating cutters in which a plurality of cutters rotating in a first direction are mounted on a first shaft and a plurality of second cutters are mounted on a second shaft for rotating in an op... | 12/25/2007 |
| RE39948 | Seal bearing assembly for use in a solid waste comminutor A solid waste material comminuting system having a an electric motor for providing rotary motion, a pair of cutter stacks with cutter elements of one stack interleaved with cutter elements of the other, and gear means to transmit the rotary motion of the electric m... | 12/25/2007 |
| 7303158 | Shredder head having shredder blades and an associated safety feature for protecting a portion of a person's body A shredder having a safety feature(s) that reduces potential safety hazards by detecting the touch of a portion of a person's body. ... | 12/04/2007 |
| 7287308 | Swarf cutter An assembly suited to the lathing of cylindrical workpieces, such as photoreceptor blanks, includes a first drive system which rotates an associated workpiece about an axis of rotation. A machining tool machines a circumference of the workpiece to generate a strip o... | 10/30/2007 |
| 7284715 | Shredding machine A shredding machine having a plastics loading section and a paper loading section. The two loading sections feed material to be shred into a single cutting section. The plastics loading section may include a ram that urges loaded materials into the cutting section f... | 10/23/2007 |
| 7240870 | Portable hand-held paper shredder A hand-held device for shredding paper comprising a pair of rotary cutting wheels disposed within a housing between an inlet slot and an outlet slot. A motor is positioned in the handle to drive the cutting wheels through a gear assembly. One wheel serves as a drive... | 07/10/2007 |
| 7237739 | Grinding machine and method of grinding material The invention relates to a grinding machine for all kinds of material, the machine comprising: a receiving element for the material (5); at least one shaft (2) positioned in the housing (1) and provided with grinding tools (3); rigid cutt... | 07/03/2007 |
| 7234656 | Paper shredder paper feed mechanism A paper shredder paper feed mechanism, characterized in having a paper insert opening structured from two movable paper feed tubes, which are configured above paper shredding cutters. Two ends of each of the paper feed tubes are respectively positioned in W-shaped e... | 06/26/2007 |
| 7226009 | Shredder with pivoting housing for the shredder mechanism The present invention relates to a shredder wherein the shredder housing can be pivoted between a generally horizontal orientation and a generally vertical orientation. ... | 06/05/2007 |
| 7213777 | Public access information destruction system performing pay-per-use shredding A pay-per-use shredding system for public use for destroying documents and media containing private or personal information. The system includes a shredder, a feed chute for receiving material and an outlet feeding the material to the shredder inlet, and a storage b... | 05/08/2007 |
