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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7975945 | Anti-jam cutting knife for a paper shredder An anti-jam knife device for a paper shredder is characterized in that a circular parting wheel is provided on a blade shaft and is closely adjacent to a guide-parting plate, with an outer diameter of the parting wheel being higher than a parting knife-edge at a bot... | 07/12/2011 |
| 7789334 | Shredding machine and shredding method In order to finely crush a shredable object, two rotational shafts for supporting cutting blades are provided in parallel in the transverse direction inside a shredder main body. The cutting blades that are provided with a plurality of cutting portions protruding fr... | 09/07/2010 |
| 7641136 | Cutter structure of a paper shredder The present invention discloses a cutter structure of a paper shredder, which comprises a pull-rod (23), paper guide combs (24), cutter arbors (21), and at least one cutter-blade set composed of two cutter-blades (22), with said cutter-bl... | 01/05/2010 |
| 7437808 | Method of forming a metal matrix component A method of forming a metal matrix component and product that comprises forming scrap sheet metal material, shredding the scrap sheet metal material to a predetermined size range, filling the shredded scrap sheet metal material into a compacting die, adding an adhes... | 10/21/2008 |
| 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 |
| 7322538 | Slag crusher Slag crusher having a shaft extending through a pressure housing which shaft is provided with inlet baffle plates in a funnel-shaped arrangement, stationary cutting knives and cutting knives rotating on the shaft. The shaft is offset with respect to the vertical cen... | 01/29/2008 |
| 7311280 | Ice crusher A chopper, or crusher (1) for breaking up ice, including a housing (2, 3) able to be pushed over the goods to be broken up and with a knife (5) with a blade having a toothed cutter (52) is provided. An upper housing part (2) is det... | 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 |
| 7258292 | Mini-type food chopper A small-sized food chopper for chopping up foodstuffs, includes an outer case including a lower casing removably connected with an upper casing and a button mounted on the upper casing; a blade connection holder installed inside the outer case, the blade connection ... | 08/21/2007 |
| 7198212 | Sheet shredder The sheet shredder includes a cutter block pair equipped with plural cutter discs arranged in parallel with each other at a specified distance, cutting units to cut sheets by rotating the cutter discs of the cutter block pair in the different directions respectively... | 04/03/2007 |
| 7159804 | Unit and method for recycling a bituminous membrane Method and unit for recycling a bituminous membrane provided with at least one reinforcement, which membrane is reduced to pieces which are introduced into a recycling unit, provided with a first rotor, housed in a first stator, and where they are heated and ground,... | 01/09/2007 |
| 7159810 | Food contact device A food contact device including a handle member with a first end and a second end. The first end of the handle member includes a pressure enhancing structure. One or more blade elements are in direct or indirect contact with the second end of the handle member. In o... | 01/09/2007 |
| 7152821 | Chopper A food chopper includes a housing for receiving a food item, a blade assembly including a blade movable within the housing for chopping the food item, a shaft attached to the blade assembly for movement therewith, a plunger assembly coupled to the shaft for effectin... | 12/26/2006 |
| 7134623 | Hammermill A hammermill having a housing, a rotor assembly, a plurality of hammers, and a attrition plate assembly is provided to reduce oversized particulate material to a desired size. The housing has a sidewall that extends between an inlet end and an discharge end which de... | 11/14/2006 |
| 7131606 | Comminution blade A blade (2) for a comminution machine of the type having interleaved counter-rotating blades (2) in the case of two shafts (1) or a single set of blades in the case of a single rotating shaft includes a carrier (20) with replaceable teeth... | 11/07/2006 |
| 7128285 | Disintegrator with rotative disk cutters An object of the present invention is to diminish the sizes of most disintegrated material effectively, said sizes being determined by the box seats made on the surface of the under roll (7). In a disintegrator (1) having a case (4) with ... | 10/31/2006 |
| 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 |
| 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 |
| 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 |
| 6974098 | Culinary press with scraper A culinary press (2) has a pair of pivotably connected members (4, 6) one comprising a chamber for receiving a foodstuff and having a perforated surface (18), and the other a plunger (24) movable into the chamber for, in use, forcing food... | 12/13/2005 |
| 6969017 | Comminuting apparatus A comminuting apparatus is provided having a frame, a set of overlapping scissor rolls, a shear outtake manifold, and a pneumatic conveyor. The frame has an enclosure with an entrance for receiving waste material. The set of overlapping scissor rolls includes a feed... | 11/29/2005 |
| 6957785 | Refining segment for a rotatable refining disc, and a refining apparatus comprising a refining disc with such refining segment Apparatus for use as a portion of a refining surface of a rotatable refining disk is disclosed. The apparatus includes a refining segment having a periphery and being mountable on a rotatable refining disk in juxtaposition with an opposing refiner disk for treating ... | 10/25/2005 |
| 6938845 | Twin-shaft comminutor having dissimilar sized cutters A sewage cleaning and comminuting system is provided with a pair of dissimilar sized cutter stacks that extends across an influent channel which intercepts all solids too large to pass there through. The dissimilar sized cutter stacks are capable of grinding large a... | 09/06/2005 |
| 6926215 | Hammermill A hammermill having a housing, a rotor assembly, a first plurality of hammers, and a first attrition plate assembly is provided to reduce oversized particulate material to a desired size. The housing has a sidewall that extends between an inlet end and an discharge ... | 08/09/2005 |
| 6572037 | Shredder with parts ejector A shredder for shredding metal shavings, chips and the like includes a housing (10) containing a shredder assembly having first and second roller motor-operated shafts (40,42) carrying spaced knives (50) for shredding metal. A sensor (66,68) on at least o... | 06/03/2003 |
| 6550701 | 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 inve... | 04/22/2003 |
| 6513741 | Shredding machine A shredding machine includes a plurality of locating plates respectively mounted on two revolving axles between two side frames, pairs of spring washers respectively mounted on the revolving axles between each two locating plates to hold a respective annu... | 02/04/2003 |
| 6460789 | Automatic food waste processing system An automatic food waste processing system includes: a conveying apparatus for removing salt and bad odors by supplying washing water, and for facilitating withdrawal of foreign materials; a crushing apparatus for effectively crushing the food waste while ... | 10/08/2002 |
| 6241170 | Industrial shredders and novel components therefor Industrial shredders containing a novel shredding head and novel stripper blades to prevent or reduce the possibility of jamming the shredder during operation. The Industrial shredder requires the use of a stripper blade which is removable and replaceable... | 06/05/2001 |
| 6092751 | Comminuting apparatus A comminuting apparatus has a housing and a crushing area. The housing includes left and right bearing plates, left and right reinforcing, bearing and holdback plates, each with clearing and crushing prongs. The crushing unit includes left and right crush... | 07/25/2000 |
| 6058822 | Size reduction apparatus A shredding apparatus is described which comprises at least one module of a pair of counter-rotating cutting assemblies located in spaced apart parallel relationship wherein each assembly comprises a driving shaft upon which is mounted one or more cutters... | 05/09/2000 |
| 6042034 | Food processing arrangement A food processing arrangement for mashing various food products to provide a food of the nature of West African fufu. The food processor has a base unit with a rotation producing structure. A mashing unit having a roller is removably mounted on the base u... | 03/28/2000 |
| 6024312 | Rotor shear for comminuting particularly bulky waste material A rotor shear for comminuting particularly bulky waste materials is formed by two cutting rotors (2) combing each other, disposed parallel to each other, supported in a housing (1), and each driven in an opposite direction. Each cutting rotor (2) comprise... | 02/15/2000 |
| 5989110 | Flexible roll for removing material from components of a fiber processing machine A fiber processing machine includes a fiber processing component and a material-removing roll supported to be in contact with the fiber processing component for removing material therefrom. The material-removing roll includes a radially deformable resilie... | 11/23/1999 |
| 5954280 | Top blocker for a paper shredder A shredder has a cutting cylinder with a cutting shaft and a plurality of spaced-apart cutter disks mounted on the cutting shaft. The shredder also has an articulated top blocker rotatably mounted above the center axis of the cutting shaft.... | 09/21/1999 |
| 5954279 | Cutting mechanism of a document shredder As the stripper (20) for the cutting mechanism (13) of a document or paper shredder (11) is provided a plastic part, which can be injection moulded in one piece and entirely surrounds the shaft (18) of the cutting rollers (15) in the gap (17) between the ... | 09/21/1999 |
| 5934580 | Document shredder A document shredder (11) has a cutting mechanism (12) constructed as a chassis and in which the cutting rollers (16) are mounted so as to contrarotate. They are designed as disks cutting on both sides for particle cutting. Over the entire length of the cu... | 08/10/1999 |
| 5904307 | Pulverizer apparatus with horizontal axis pivot scraper A scraper assembly for use with an associated coal pulverizer or as part of a coal pulverizer having a vertical axis with a central hub that rotates during normal operation of the pulverizer. The scraper assembly includes a bracket dimensioned and configu... | 05/18/1999 |
| 5893523 | Apparatus for comminuting waste materials having feed roll delivery features An apparatus for comminuting solid waste material comprises a frame having an enclosure with an entrance for initially receiving solid waste material; a set of overlapping scissor rolls rotatably mounted within the enclosure for shearing the waste materia... | 04/13/1999 |
| 5833151 | Glass container hammer mill An apparatus and method for smashing empty glass receptacles into predetermined sizes to facilitate the collection, storage, transportation and recycling of glass chard and/or cullets is disclosed. The apparatus includes a cabinet or housing that is compr... | 11/10/1998 |
