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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7934672 | Refiner blade and segment, as well as a method of forming them and a method of modifying blade grooves A refiner blade comprising a blade surface for defibrating a lignocellulose-containing material, the blade surface comprising blade bars and blade grooves provided therebetween. At least one blade groove provided in the blade surface is formed by removing material f... | 05/03/2011 |
| 7407123 | Refiner plates with logarithmic spiral bars A special shape of bars on refining discs or plate segments (54) of a rotating disc refiner (10) is disclosed including a plurality of bars (76) generally extending outwards toward the outer end of the disk across its surface, arranged in a sing... | 08/05/2008 |
| 7398938 | Conical refiner plates with logarithmic spiral type bars A special shape of bars on refining cones or plate segments of a rotating conical refiner is disclosed including a plurality of bars generally extending outwards towards the outer end of the cone across its working surface, arranged in a single, two or more radial z... | 07/15/2008 |
| 7355281 | Method for making semiconductor device having a high-k gate dielectric layer and a metal gate electrode A method for making a semiconductor device is described. That method comprises forming a first dielectric layer on a substrate, then forming a trench within the first dielectric layer. After forming a second dielectric layer on the substrate, a first metal layer is ... | 04/08/2008 |
| 7322539 | Refining surface for a refiner for defibering material containing lignocellulose The invention relates to a refining surface in a refiner for defibering material containing lignocellulose, which refiner has two coaxially rotating refining surfaces. The material being defibered is fed between the refining surfaces that both have grooves and bars.... | 01/29/2008 |
| 7318558 | Devices and systems for cutting food and products originally in block form A refillable cutting container device is described for whole block food products to be dispensed in the grated, shredded or flake form, of the type comprising: a container body suitable for receiving a food product in the form of one or more whole blocks; a cutting ... | 01/15/2008 |
| 7300540 | Energy efficient TMP refining of destructured chips A system and method for thermomechanical refining of wood chips comprises preparing the chips for refining by exposing the chips to an environment of steam to soften the chips, compressively destructuring and dewatering the softened chips to a solids consistency abo... | 11/27/2007 |
| 7300008 | Tooth refiner plates with varying feeding angles and refining method A refiner plate including: concentric rows of teeth and the teeth arranged facing radially inward, the sidewalls of the teeth are at an angles to radii of the plate such that the angle of teeth in a first row(s) of teeth differs from the angle of teeth in a second r... | 11/27/2007 |
| 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 |
| 7263755 | Method for the manufacture of fillings for utilization in the mechanical processing of aqueous paper fiber stock A method for fabricating fillings that are utilized in refiners for the purpose of refining paper fiber stock. The filling manufactured in accordance with the method of the present invention includes a base body, an overlay template on the base body and processing e... | 09/04/2007 |
| 7191967 | Refiner A refining surface for a refiner intended for defibrating lignocellulose-containing materials, the refiner having at least two refining surfaces arranged coaxially relative to each other, at least one of which rotates around a shaft, and between which the material t... | 03/20/2007 |
| 7172148 | Grooved pyramid disperger plate A disperger plate segment, for removing contaminants from recycled, or recovered, paper and packaging materials includes radially concentric rows of teeth. Each row of teeth includes teeth and channels disposed intermediate the teeth. Each of the teeth have an upper... | 02/06/2007 |
| 7134621 | Mixing apparatus A mixing apparatus wherein raw material may be crushed to fine particles of desirous size to be mixed uniformally by multi-layered mixing blocks. The mixing apparatus includes a plurality of mixing units piled up in a housing, and arrays of projections formed at the... | 11/14/2006 |
| 7128286 | Double disk refiner, stock inducer therefor and method of refining low consistency stock A double disk refiner and inducer for the same that mixes fiber in low consistency (6% or less by weight) stock and urges it towards both pairs of refiner disks of the double disk refiner. In a preferred embodiment, the inducer comprises an impeller that has at leas... | 10/31/2006 |
| 7104480 | Refiner sensor and coupling arrangement A sensor assembly and coupling arrangement for a rotary disk refiner. The sensor assembly includes a housing formed by a base and frustoconical cap that has a sensing element carrying bulb extending outwardly therefrom. The coupling arrangement includes a conduit ar... | 09/12/2006 |
| 7090159 | Invertible center feed disk for a vertical shaft impact crusher An impact crusher includes a center feed disk. The center feed disk includes a peripheral edge portion, a first face, an opposing, second face, a central bore extending through the first and second faces, and first and second countersunk pockets provided about the c... | 08/15/2006 |
| 7073738 | Fine media mill with improved disc An agitator with a rotatable axial shaft with a plurality of grinding discs connected generally perpendicular to the shaft is provided having at least one grinding disc with an axially extending pin spaced radially outwardly from the shaft and radially inwardly from... | 07/11/2006 |
| 7029584 | Rotating filter A device for filtering liquids comprising two shafts which are parallel to each other or at an acute angle wherein each shaft carries a stack of disks that extend perpendicularly to the shaft axis and are rotated thereby. The disks of one stack are engaged in the in... | 04/18/2006 |
| 6935585 | Grinding head A grinding head (10) includes a grinding bowl (12) provided with a boss (14) fixed to a bottom wall (16) of the bowl (12) and projecting into the bowl (12). The head (10) also includes a grinder ring (18) that ... | 08/30/2005 |
| 6910651 | Material crusher A material crushing device including rotating rotors having first and second crushing surfaces which converge to a nip. One or both of the crushing surfaces may include projections and one or more of the crushing surfaces includes channels disposed at the nip for ej... | 06/28/2005 |
| 6845932 | Kitchen appliance for preparing food A plate-shaped insert is removably arranged in the receptacle receiving the processed food of a kitchen appliance or a kitchen device for processing food, and extends with its edge to the inner wall of the receptacle and tightly encloses the drive arbor or spindle o... | 01/25/2005 |
| 6808136 | Fine media mill with improved disc An agitator (10) with a rotatable axial shaft (24) with a plurality of grinding discs (22) connected generally perpendicular to the shaft (24) is provided having at least one grinding disc (22) with an axially extending pin (32 | 10/26/2004 |
| 6662837 | Replaceable blades for wood chippers Single-edged wood chipper blades which can be repeatedly removed from a wood chipper and sharpened, as needed, to prevent the need for disposing of multiple conventional blades over a prolonged period of repeated use. Each of the replaceable blades typica... | 12/16/2003 |
| 6651915 | Mincing disc and meat machine comprising a mincing disc A mincing disc used in a meat mincing machine having partial areas in a field of perforations of the mincing disc which are arrange in an imagined corridor at both sides of the central through opening which extends over the surface of the mincing disc, en... | 11/25/2003 |
| 6634584 | Stone mounting system A comminuting apparatus for reducing the size of particles, having a frame providing an internal perimeter and having a shape; a stone having a grinding surface for grinding a material and providing a perimeter having a shape corresponding to the shape of... | 10/21/2003 |
| 6634583 | Process and device for the dispersion of a fibrous paper material Process and device for dispersing a fibrous paper web which comprises a substantially consistent fibrous paper material. The device includes an inlet for fibrous paper material, a stationary stator, and at least one rotatable rotor. The stator and the at ... | 10/21/2003 |
| 6592062 | Refining element Refining elements for use in a disk refiner are provided, in which the refining elements include an outer surface with a plurality of raised bars separated by grooves, the raised bars including an upper surface having a first longitudinal edge and at leas... | 07/15/2003 |
| 6572040 | Coal grinding, cleaning and drying processor A coal processing mill incorporates integral systems for coarse coal dewatering, grinding, injection of a peptizing agent into the ground coal stream before it enters an agitation zone (where the peptization process takes place), passing the treated coal ... | 06/03/2003 |
| 6502774 | Refiner disk sensor and sensor refiner disk A sensor, sensor disk, sensor measurement correction system, and method used in measuring a parameter in the refining zone. The sensor includes a spacer that spaces its sensing element from the disk. In one preferred embodiment, the spacer is made of an i... | 01/07/2003 |
| 6422496 | Refiner for refining a fiber suspension A refiner for refining a fiber suspension includes a first disk which is rotatable or stationary, and a second disk which is rotatable. A first tackle is coupled with a first disk or the second disk. A second tackle is coupled with the other of the first ... | 07/23/2002 |
| 6422492 | Apparatus for treating ion-exchange resin An apparatus for treating ion-exchange resin includes a disk mill having a plurality of disks including corundum for comminuting the ion-exchange resin. Reliable temporary storage or final storage even of coarse-grained ion-exchange resin from a nuclear p... | 07/23/2002 |
| 6402067 | Refiner for fibrous material A pair of refiner members comprises respective refiner bars which cooperate to refine pulp. At least one the refiner bars extends in a spiral pattern for imparting a screw-like pumping action to the pulp. The refiner bars of the cooperating refiner member... | 06/11/2002 |
| 6394372 | Refining disk A refining disk is provided for use in various kinds of refining apparatus. The refining apparatus comprises juxtaposed disks with refining surfaces on the opposed faces, one disk rotating relatively to the other disk to work on the material therebetween.... | 05/28/2002 |
| 6363601 | Process for the production of fittings and of a machine for the mechanical processing of suspended fibrous material as well as fittings and a machine produced according to the process Fittings and machine and process for production of the fittings and machine for a mechanical processing of suspended fibrous material that include at least one base and at least one processing element adapted to be exposed to flow of a fibrous suspension ... | 04/02/2002 |
| 6286771 | Two-stage micronizer for reducing oversize particles Integrated first stage and second stage reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fed feed material centrifugally from rotating rings to counte... | 09/11/2001 |
| 6257511 | Wood-chipping machines A wood-chipping machine has a plurality of cutters carried by a flywheel which is rotated to move the cutters across a throat through which material to be chipped is fed, and in which each cutter is substantially frusto-conical and hence circular and a pl... | 07/10/2001 |
| 6196284 | Wood pulverizer with improved grates and grate components An improved wood pulverizer is provided with a rotating disc studded with a plurality of curved tapered hammers. One or more anvils is secured to the pulverizer with the anvil having teeth and slots located adjacent the surface of the disc. The hammers of... | 03/06/2001 |
| 6148882 | Disk chipper and method for fastening a bedknife to a disk chipper A disk chipper includes a bedknife, the bedknife having opposing first and second surfaces, and a chipper frame, the chipper frame having an opening for receiving the bedknife, the opening being defined by opposing first and second surfaces for facing the... | 11/21/2000 |
| 6042036 | Refining element Refining elements are disclosed for use in refiners in which the refining elements comprise a refining surface with a plurality of raised bars alternating with a plurality of grooves. The raised bars at the inlet of the refining path have a first spacing ... | 03/28/2000 |
| 6032888 | Refiner plate with interspersed surface and subsurface dams A refiner plate for the face of a refiner disc comprising a plurality of refiner segments arranged side-by-side on the face of the disc to form a substantially annular refining region. Each refiner segment has an inlet zone for receiving the material to b... | 03/07/2000 |
