...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 8141805 | System for determining counter knife bank insertion position A chopper assembly for a combine includes a rotary chopper element, a chopper grate assembly spaced from the rotary chopper element to form a passageway for crop residue and a knife bank adjustably connected to the chopper grate assembly. The knife bank is movable b... | 03/27/2012 |
| 8118248 | Method for recovering and/or recycling material A cutting mill for crushing broken polycrystalline needle-shaped silicon material, which contains particles that have an aspect ratio of AI with 5 | 02/21/2012 |
| 8066213 | Replaceable tooth mount rotor system for waste fragmenting machines Advantageously, certain embodiments of the present invention provide a system that allows easy replacement of one or more worn rotor teeth and/or rotor tooth mount(s) mounted on a waste fragmenting machine. The present invention may further provide a system that all... | 11/29/2011 |
| 7703714 | Comminution machine A coarse material comminution machine 1 comprises a rotor 2 fitted with blades 4 and a stator body 3 located on the stator side with at least one blade 5 adjustable by means of a control device 11 in the direction towards th... | 04/27/2010 |
| 7703713 | Adjustable blades for wood chippers and method Adjustable blades for wood chippers and cutters include one or more blades of selected length, thickness and width, fitted with one or more bevelled blade seats in the rear blade edge, which blade seats, in a first embodiment, receive corresponding bevelled inserts ... | 04/27/2010 |
| 7681819 | Disc adjustment system for chipper apparatus An adjustment mechanism for a rotary disc chipper apparatus includes an axially displaceable shaft attached to a chipper disc, at least one gear disposed in relation to the axially adjustable shaft and a drive member engageable with the at least one gear to produce ... | 03/23/2010 |
| 7434756 | Rotor and counter knife for a rotary grinder The present invention relates to a single shaft rotary grinder with an improved cutter and combination “comb” rotor and counter knife configuration for reducing film, fibrous material and other material which has a tendency to wrap around the rotor, rubber, soli... | 10/14/2008 |
| 7427040 | No-oil shredder and other no-oil machinery No-oil high-security shredders, other no-oil shredders, and other no-oil machinery are provided. By using zero-clearance and a sacrificial material, the need to oil shredder machinery has been eliminated. A single no-oil destruction machine advantageously may receiv... | 09/23/2008 |
| 7357340 | Destruction method with 45 degree feeding True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, int... | 04/15/2008 |
| 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 |
| 7281676 | Shredding apparatus and method of clearing land therewith A shredding apparatus includes a shredding drum capable of quickly and effectively clearing large tracts of land. Several cutter blocks are positioned in axial rows across the periphery of the drum and are secured to the drum by welding. The blocks in each row are e... | 10/16/2007 |
| 7270285 | Band cutting system A cutting system for cutting elongate bands of material is provided. The cutter includes a cutter and a motor connected to the cutter for rotatably driving the cutter. A tube surrounds the cutter at a predetermined spacing from the motor, the tube including an openi... | 09/18/2007 |
| 7267146 | Chipper bed knife The invention relates to a chipper (1) bed knife (2) attached detachably to the chipper frame (3), the chipper (1) having a chipper disc (5) supported on its shaft (4), which shaft is fitted rotatably to the chipper frame ( | 09/11/2007 |
| 7267294 | Zero-clearance cutting systems True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, int... | 09/11/2007 |
| 7255296 | Granulator mill A granulator mill includes a mill housing with an openable part and a fixed part, a rotor which is rotary inside the mill housing and has a number of blades for co-operation with at least one fixed blade mounted in the mill housing and a discharge section whose inte... | 08/14/2007 |
| 7213781 | Cutterhead A cutterhead having a drum surface with a series of knife retainers distributed about the surface. The longitudinal extension of the knife retainers defines an angle α with the axis of rotation of the cutterhead, and a knife is mounted to the knife retainer. The kn... | 05/08/2007 |
| 7213779 | Rotary grinder apparatus and method A rotary grinder having a cylindrical drum that includes a cylindrical surface. The cylindrical surface defines two holes. The drum receives opposite ends of a through-member at the two holes such that the opposite ends of the through-member comprise hammers when th... | 05/08/2007 |
| 7198215 | Dual product sizing machine A crushing machine comprises a pair of crushing rolls which are designed to be rotatable towards each other and away from each other. A side plate is provided on the outside of each roll. The crushing rolls have teeth which are shorter than conventional crushing tee... | 04/03/2007 |
| 7175116 | High-security cutting True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, int... | 02/13/2007 |
| 7175119 | Apparatus and method for shredding wet chip materials A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder ... | 02/13/2007 |
| 7168639 | Method and apparatus for reducing tires A method and apparatus for reducing vehicle tires includes a feed mechanism for transferring flattened tire treads into a shearing assembly which includes a rotating shear assembly. The shear assembly is comprised of a rotating arbor supporting a stack of a pluralit... | 01/30/2007 |
| 7124969 | Cutting device for reducing waste material A cutting device for reducing waste material comprises at least two groups of knives mounted on a shaft, next to one another, installed rotatably in front of an anvil. The groups of knives, each operating in a restricted zone of the width of supply each comprises se... | 10/24/2006 |
| 7100852 | Helical cutting True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, int... | 09/05/2006 |
| 7070132 | Low-speed high-torque chipper-shredder machine A yard waste chipper-shredder machine includes a reversible electric motor to drive a roller at low speed and high torque. The waste material is fed into an inlet chute and is crushed and ground into mulch between the roller and the chute for discharge through an ou... | 07/04/2006 |
| 7043819 | Methods for forming metal parts having superior surface characteristics A method of forming a metal product. A metal alloy workpiece substrate is provided have pre-process dimensions. The dimensional differences are determined between the pre-process dimensions of the workpiece substrate and desired post-process dimensions of a post-pro... | 05/16/2006 |
| 7028935 | Apparatus and method for shredding wet chip materials A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder ... | 04/18/2006 |
| 7021576 | Blade mill for grinding plastic material The invention describes a blade mill for grinding plastic material with a rotor which is driven in rotation inside a grinding chamber and has a plurality of radially outwards-pointing cutter blades distributed around its circumference and a plurality of stationary, ... | 04/04/2006 |
| 7004413 | Grinder cutter tooth and anvil assembly A grinder tooth for use with a rotatable breaker ring part of a grinder, the breaker ring has a breaker head protruding radially from the ring outer peripheral surface for carrying the grinder tooth. The grinder tooth includes a blade holder, a shank extending from ... | 02/28/2006 |
| 7000517 | Machine for cross cutting a material web A machine for cross cutting a material web has a main frame part unitarily formed with a pair of transversely spaced main sides and with at least one main traverse extending transversely between the main sides and a secondary frame part unitarily formed with a pair ... | 02/21/2006 |
| 6983904 | Guillotine shears The invention discloses an impact shears having a rotor with individual chopping blades disposed on the rotor in a predetermined arrangement and with blade(s) or blade system that is generally stationary vis-à-vis the rotation of the rotor. The blade is held in a b... | 01/10/2006 |
| 6978956 | 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... | 12/27/2005 |
| 6948413 | Wire chopper module for EDM system A wire chopper module for processing spent electrode emerging from an EDM system employs replaceable inserts that are also movable relative to the feed path of the electrode. Shifting the position of the inserts relative to the feed path of the electrode allows more... | 09/27/2005 |
| 6938844 | Zero-clearance cutting systems True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, int... | 09/06/2005 |
| 6880774 | Reducing machine rotor assembly and methods of constructing and operating the same A fragmenting rotor assembly for waste wood and other fragmentable material has a drive shaft assembly including mechanism for driving the shaft in a direction of rotation. A series of radially projecting hammers mechanisms are situated along the axis of the shaft a... | 04/19/2005 |
| 6843436 | Chopper pump A pump for moving a solid containing fluid. The pump is provided with a plurality of vanes passing by an anvil. The vanes act as blades, chopping the solid waste into smaller portions as the vane passes by the anvil. The pump may be provided with a plurality of anvi... | 01/18/2005 |
| 6745961 | Colloid mill A colloid mill utilizes a motor-driven shaft configuration that connects to the rotor of the colloid mill to the electric motor rotor. In this way, the mill rotor shaft is directly driven. Complex gear or belt drive arrangements between a separate electric motor and... | 06/08/2004 |
| 6719225 | Device and method for pre-disintegrating and cutting into sections fibrous plants and for the separation of fibers and woody parts A device and method are provided for pre-disintegrating and cutting fibrous plants to staple length for the separation of fibres and woody parts with the goals to accelerate drying, if applied during harvesting, but mainly to facilitate separation of woody parts bef... | 04/13/2004 |
| 6637687 | Shearbar for a forage harvester A shearbar comprises an elongated mild steel body 10 having a top surface 14 covered with a layer of hardfacing material 16 along at least one longitudinal edge 18 to act as a counter knife to a rotary cutter. To resist the development of a wear gully on ... | 10/28/2003 |
| 6634579 | Method of and apparatus for sharpening orbiting knives The orbiting knife or knives on a rotary knife holder in a tobacco shredding machine is or are automatically adjusted relative to a sharpening tool in response to signals indicating changes of one or more variable parameters which are indicative of the ne... | 10/21/2003 |
| 6634581 | Field shredder with a friction base A field shredder comprises a friction base, a housing, a rotatable blade drum provided in the housing and having a rotary axis, and a plurality of blades attached to the blade drum, which cooperate with the friction base to finely chop harvested material.... | 10/21/2003 |