Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8074911 | Wireless liquid level sensing assemblies and grinder pump assemblies employing the same A liquid level sensing assembly employs an inductive or magnetic coupling to wirelessly communicate a plurality of signals based on a changing level of wastewater in a tank to a first coil of a pump/alarm control circuit in the grinder pump. The assembly includes at... | 12/13/2011 |
| 8028941 | Pulper for pulverizing and suspending paper stock A pulper to pulverize and suspend paper stock. The pulper includes a container open at the top with a cylindrical side wall and a driven rotor that is arranged in an off-center manner to the center of the container. The base of the container can be inclined toward t... | 10/04/2011 |
| 7980497 | Pulper for comminuting and suspending paper stock and its use A pulper is used to comminute and suspend paper stock. The pulper includes a container that is open at the top and has a cylindrical side wall and a driven rotor, which is arranged eccentrically with respect to the center of the container. The bottom of the containe... | 07/19/2011 |
| 7347113 | Method for evaluating the filling rate of a tubular rotary ball mill and device therefor The invention concerns a method which consists in establishing, by modeling, an algorithm which defines a relationship between the filling ratio of a ball mill and the angular positions of the bottom and the top of the mill content as well as of its absorbed power, ... | 03/25/2008 |
| 7284716 | Agitating device, and dispersing apparatus using the agitating device Disclosed is an agitating device (3) to be disposed in a batch-type vessel or the like. The agitating device (3) has an upper cover plate (5), a bottom cover plate (6), an impeller (7), an inner screen member (8), and first ... | 10/23/2007 |
| 7279073 | Apparatus for liquid-based fiber separation An apparatus for treating fibrous material is disclosed. The apparatus may include a fiber separator, a de-liquefier, a dry-to-wet blender and a flash dryer. The fiber separator may be a liquid-based fiber separator. The de-liquefier is for removing liquid from the ... | 10/09/2007 |
| 7275704 | Compound dispersing method and apparatus To provide a dispersing apparatus that can stir media in a vessel uniformly, and by increasing the shearing power at stirring, can perform quality constant dispersion with high dispersing efficiency. In a dispersing apparatus wherein a basket-shaped vessel 2 ... | 10/02/2007 |
| 7229035 | Method of deagglomerating ceramic powder, deagglomeration mill used therefor and method of preparing highly dispersed slurry using the deagglomerated powder Disclosed herein is a method of deagglomerating ceramic powder to inhibit agglomeration and provide a uniform particle size, a deagglomeration mill used for the above method, and a method of preparing uniformly mixed ceramic slurry using the deagglomerated ceramic p... | 06/12/2007 |
| 7204437 | Waste pulping system In a waste pulping apparatus, an impeller assembly comprises a rotating blade for pulping solid waste to form a slurry, the rotating blade having an axis of rotation, a base and a plurality of ears that axially extend away from the base. The impeller assembly also i... | 04/17/2007 |
| 7198211 | Waste pulping system In a waste pulping apparatus, an impeller assembly comprises a rotating blade for pulping solid waste to form a slurry, the rotating blade having an axis of rotation, a base and a plurality of ears that axially extend away from the base. The impeller assembly also i... | 04/03/2007 |
| 7175118 | Apparatus and method for processing high viscosity dispersions Apparatus and method for dispersing solid constituents into a liquid vehicle employ an immersion mill operating in combination with a low shear mixer blade assembly which sweeps the walls of a tank containing a batch of solid constituents in a liquid vehicle to circ... | 02/13/2007 |
| 7168641 | Attrition scrubber apparatus and method An attrition scrubber that includes multiple attrition scrubber cells. The multiple attrition scrubbers cells are arranged generally parallel to a vertical axis of rotation. The apparatus includes a shaft that extends generally parallel to the vertical axis of rotat... | 01/30/2007 |
| 7163604 | Production of fiber suspension from waste paper A fiber suspension is produced from waste paper by first filling a pulper with a batch of the waste paper. The pulper is operated to partly defibrate the batch of waste paper substantially without disintegrating coarse imputities into finer impurities. The partly de... | 01/16/2007 |
| 7131765 | Helical-ribbon mixer A helical-ribbon mixer having a rotation-symmetrical inner mixing vessel wall (2), a motor-driven central agitator axis (3) therein, on which, on lateral agitator arms (5), at least one helical ribbon (4) is held close to the vessel wall ... | 11/07/2006 |
| 7118054 | Pressure differential material transport and disposal system A pressure differential material transport system to transfer materials with an airflow to a sewer system. Embodiments of the pressure differential material transport system may be used for residential or industrial applications to dispose of materials to the sewer ... | 10/10/2006 |
| 7063456 | Container for a blender A container (15) for a blender (10) includes a bottom surface (16) having a non-symmetrically shaped perimeter. A side wall (17) extends upwardly from the perimeter of the bottom surface (16). A mixing blade assembly (20) ha... | 06/20/2006 |
| 7059552 | Comminution apparatus These and other objects of the present invention are achieved by a comminution apparatus comprised of a housing member formed with co-planar circularly-shaped chambers in chordal juxtapositioned to each other thereby forming a collision zone therebetween and wherein... | 06/13/2006 |
| 7021575 | Waste pulping system In a waste pulping apparatus, an impeller assembly comprises a rotating blade for pulping solid waste to form a slurry, the rotating blade having an axis of rotation, a base and a plurality of ears that axially extend away from the base. The impeller assembly also i... | 04/04/2006 |
| 7004414 | Blade for food processors A blade for food processors is provided on at least one surface with a plurality of spaced cutting teeth, which are slantingly or perpendicularly projected from the surface of the blade. Each of the cutting teeth includes a substantially pyramidal projection and a s... | 02/28/2006 |
| 6988682 | Method and system for utilizing waste Waste that contains fibers and combustible material is slushed in a continuous-operation high-consistency pulper (10) to suspend in water the fibers contained in the waste. From the pulper (10) are discharged substantially continuously a fiber suspensi... | 01/24/2006 |
| 6981795 | Multiple blade blender apparatus A multi-blade blender is disclosed having a drive shaft, a gear system, and at least two blade assemblies. Each blade assembly includes a blade affixed to an end of a blade shaft. The blade shafts of the first, second and third blade assemblies are angled from the v... | 01/03/2006 |
| 6951445 | Apparatus for use in slurry pumps Apparatus for use with a slurry pump, including a stationary part which includes a processing chamber having an inner side wall and a central axis, an inlet and an outlet to and from the processing chamber and a rotatable part at least partially disposed within the ... | 10/04/2005 |
| 6938846 | Screening apparatus with slot ring moveable in axial direction Apparatus for screening pulp suspensions is provided, including a housing, a rotary screen within the housing, a screen chamber between the rotary screen and the housing, a reject outlet, an accept outlet, an outer screen surface defining the outer surface of the sc... | 09/06/2005 |
| 6890092 | Adjustable wheel system for a vertical mixer A vertical mixer has a set of wheels on each side of the mixer that is automatically adjustable for variation in the terrain where the mixer is used. Each set is rotatable about a pivot point. Preferably, weight bars provide the pivot point for each set of wheels. T... | 05/10/2005 |
| 6817752 | Auger device for a vertical mixer An auger device of a vertical mixer is disclosed for mixing animal feed. The auger device includes a core having a first and a second end and flighting which is secured to the core so that in operation of the mixer, when the auger device rotates, the animal feed is ... | 11/16/2004 |
| 6776365 | Waste pulping system In a waste pulping apparatus, an impeller assembly comprises a rotating blade for pulping solid waste to form a slurry, the rotating blade having an axis of rotation, a base and a plurality of ears that axially extend away from the base. The impeller assembly also i... | 08/17/2004 |
| 6708910 | Pump and grinder assembly for use with a steam producing device A pump and grinder assembly is provided for use with a steam producing device having a housing defining a water chamber. The assembly includes a motor having a rotatable output shaft and a pump and grinder shaft coupled to the output shaft for rotation therewith. A ... | 03/23/2004 |
| 6705554 | Rotor for a paper stock processing machine, anti-wear element for such a rotor, and paper stock processing apparatus Rotor for a paper stock processing machine, an anti-wear element for protecting a leading front surface of a rotor blade, and a paper stock processing apparatus. The rotor includes at least one rotor blade having a leading front surface to be protected, and an anti-... | 03/16/2004 |
| 6691939 | Pressure differential material transport and disposal system A pressure differential material transport system to transfer materials with an airflow to a sewer system. Embodiments of the pressure differential material transport system may be used for residential or industrial applications to dispose of materials to... | 02/17/2004 |
| 6619575 | Apparatus for continuously recycling synthetic material, preferably polymers An apparatus for the continuously recycling of synthetic plastics material, preferably polyester, has a first receptacle (2) for the material in which movable tools (9) are disposed which comminute and/or mix the material. Pre-processed material is convey... | 09/16/2003 |
| 6578781 | Method for the disintegration sewage sludge There is a method for which a sewage sludge is permitted to flow from a first connecting region 21 to a treatment device, which works with rotation and stresses the sewage sludge with severing parts, and from the treatment device to a second connecting re... | 06/17/2003 |
| 6508422 | Pulper for a fiber stock preparation system A pulper for pulping a fiber source includes a tank and a rotor. The tank has a plurality of annular-shaped inner walls defining a chamber. The plurality of walls include a first wall, second wall, third wall and forth wall which are sequentially vertical... | 01/21/2003 |
| 6451165 | Channel pulper A pulper in a stock preparation system includes a housing with a fiber inlet, at least one water inlet, at least one outlet and an inner chamber. A plurality of rotatable augers extend into the inner chamber.... | 09/17/2002 |
| 6402065 | Method and apparatus for lysing sludge and dividing solids in liquid suspension Apparatus and system to mechanically lyse microbial cells and disintegrate particulate in liquid and recycling the lysed cells, cytoplasm and particulates to the aeration system of a wastewater treatment plant. The method of lysis is cavitation and imping... | 06/11/2002 |
| 6234415 | Pulping apparatus A pulper includes a rotor (5) mounted in a tube adjacent to a screening plate (4) having holes (4a). The rotor (5) includes helical vanes (5a) whose diameter decreases towards the outer end of the rotor. The rotor vanes (5a) carry in the vicinity of the s... | 05/22/2001 |
| 6216967 | Process for disaggregating waste materials which contain at least partially reusable elements A process is disclosed for disaggregating waste materials which contain at least partially reusable elements, mainly metals, plastics and cardboard. The waste materials are stirred in water by mechanical forces, large pieces, in particular plastic pieces,... | 04/17/2001 |
| 6186426 | Comminution and distribution device for comminutable, pumpable materials The comminution and distribution device according to the invention can be used to crush comminutable, pumpable materials, in particular mechanically dewatered slurry, into roughly the same sized pieces, and feed them in controllable quantities to a downst... | 02/13/2001 |
| 6170769 | Screening apparatus with reject flow restriction means Screening apparatus is disclosed for separating fiber suspensions including a housing having an inlet for the fiber suspension, a stationary tubular screen having an inlet end adjacent to the housing inlet and an outlet end, and dividing the interior of t... | 01/09/2001 |
| 6156159 | Device for mixing of a fluid into a pulp-suspension Process and device for mixing fluid into a pulp suspension of cellulose-containing fiber material, in which the pulp suspension is pumped in through a pump inlet (17), brought into rotation and, at the desired reaction pressure, mixed with the said fluid ... | 12/05/2000 |
| 6131587 | Hand washing and drying apparatus and system including waste disposal apparatus and method A disposal apparatus for use with a wash station and a towel dispenser includes a liquid source and a waste disposal unit arranged in fluid communication with the liquid source that (i) collects liquid from the liquid source and receives a spent towel dis... | 10/17/2000 |
