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| Number | Title | Issue Date |
| 8177511 | Blower wheel A blower wheel comprising a centerdisk comprising a conical portion (16), a planar portion (160) for receiving a hub (7), and an arcuate portion (15) intermediate the conical portion and an outer portion (14), a plurality of blades... | 05/15/2012 |
| 8167562 | Centrifugal fan and blower having the same A centrifugal fan includes a plurality of blades, a first wall disposed at first axial ends of the blades, and a second wall disposed at second axial ends of the blades and having a shaft portion at a center. At least one of the first wall and the second wall has a ... | 05/01/2012 |
| 8128369 | Blower impeller with partial tip blockage According to embodiments of the invention, an impeller includes a hub, and a plurality of radial blades for drawing the air inflow axially through the hub and delivering the drawn air radially towards the outside. A ring is attached to one or more tips of the plural... | 03/06/2012 |
| 8113782 | Impeller structure of blower An impeller structure includes a hub having a central spindle, and an impeller. The impeller has a top connection ring, a bottom connection ring, a pressure-retaining ring and a plurality of blades vertically arranged around the periphery of the hub. A top side oute... | 02/14/2012 |
| 8092181 | Resin cross flow fan and manufacturing method thereof A resin cross flow fan and a method for manufacturing a resin cross flow fan are provided in which an annealing step can be omitted and the number of circular disks can be reduced, and which provides improved fan strength and air blowing performance. A resin cross f... | 01/10/2012 |
| 8057185 | Forward swept centrifugal fan wheel A forward swept centrifugal fan wheel comprising a first endring (10), a second endring (11), a plurality of blades (12) connected between the first endring and the second endring, each blade having a substantially continuous arcuate form extend... | 11/15/2011 |
| 7905708 | Fan and impeller thereof A fan comprises an impeller and a motor. The impeller has a hub, a plurality of blades and a plurality of reinforced elements. The blades are disposed around the hub. At least one reinforced element is disposed on the active surfaces of two adjacent blades. The blad... | 03/15/2011 |
| 7815419 | Impeller for blower and air conditioner having the same An impeller is provided for a blower having a blade (15), a plurality of notches (17) provided at predetermined intervals on a side edge of the blade (15), and a plurality of smooth portions (18) each provided between a pair of the notche... | 10/19/2010 |
| 7771169 | Centrifugal multiblade fan A plurality of curved rectangular blades are arranged in a circumferential direction on a periphery of a disc, forming a pipe-like basket shape with an opening on a front side of the disc. Rotation of the disc draws in air from the opening and draws out the air in a... | 08/10/2010 |
| 7744350 | Multiblade fan A multi-blade fan includes a spirally-shaped housing which has a bell-mouth orifice on one side, a sucking inlet and an exhausting outlet, an impeller which is placed in a housing and has a plurality of blades supported by a main plate and a lateral plate at both th... | 06/29/2010 |
| 7422418 | Cross flow fan A cross flow fan of an indoor unit of, for example, an air conditioner includes a pair of disc-shaped end plates and a plurality of fan blades attached to the end plates in a ring-shaped arrangement. Each of the fan blades has a cross sectional area ratio of Sa/Sb i... | 09/09/2008 |
| 7419358 | Method and device for compensation of the thermal expansion of a cellular wheel sluice rotors A cellular wheel sluice for the feeding of hot bulk material with stabilization of the radial play between the web ends of the cellular wheel and the wall of the housing borehole by means of the combination of materials of different thermal expansion coefficients, w... | 09/02/2008 |
| 7387496 | Fan assembly and impeller thereof A fan assembly and impeller thereof. The fan assembly includes a plurality of blades and a hub. The hub includes an upper surface and a center point. The blades have bottom portions arranged in a circle on the upper surface with respect to the center point. ... | 06/17/2008 |
| 7364411 | Fan impeller and fan motor Small, high-performance centrifugal fan for cooling portable electronic devices. The centrifugal fan motor employs a cantilever-type impeller constituted by an impeller blade unit that includes a lower endwall portion at axial one end, having a wall surface for brea... | 04/29/2008 |
| 7357342 | Split fan wheel and split shroud assemblies and methods of manufacturing and assembling the same Devices and systems for transporting a material suspended in a fluid, e.g., pulverized coal, that can be assembled about a rotary element are disclosed. The devices and systems comprise a first portion or half of a fan wheel assembly, a second portion or half of a f... | 04/15/2008 |
| 7334936 | Mixing device and method of mixing The present invention is a mixing device and a method of mixing viscous fluids with a mixing device. The mixing device includes a shaft and a support mounted for rotation with the shaft. A plurality of vanes extend from the support and are mounted for rotation with ... | 02/26/2008 |
| 7329100 | Centrifugal fan impeller An impeller of a centrifugal fan, the impeller used in the centrifugal fan having a casing and the impeller rotatably mounted in the casing. The impeller includes a hub connecting a number of blades equiangularly disposed in a circumferential direction. The hub incl... | 02/12/2008 |
| 7264446 | Centrifugal-fan impeller, and method of its manufacture A tiny-diameter, lengthwise extensive impeller utilized in an ultra-small centrifugal fan is molded by an injection molding operation. In order to avert difficulties attendant on injection-molding ultra-miniature parts, the thickness and length of a reinforcing ring... | 09/04/2007 |
| 7223075 | Turbine wheel for driving rapidly rotating tools A turbine wheel for driving rapidly rotating tools, in the form of a circular disk or ring, configured for mounting so as to be rotatable about an axis. Disposed thereon in circular formation are turbine blades having axially parallel front and back faces curved in ... | 05/29/2007 |
| 7210907 | Centrifugal fan impeller with blades inclined relative to the axis of rotation The invention relates to a centrifugal fan impeller (1) having an axis of rotation (6) and comprising one or more modules (2). Each module (2) comprises a mounting disc (4), at least one connecting ring (5) and a plurality o... | 05/01/2007 |
| 7195457 | Motor-operated fan for air cushion table A motor-operated fan includes a housing, a motor secured in the housing, and an impeller rotatably mounted on the housing and rotated by the motor. Thus, the impeller has a plurality of blades and a plurality of auxiliary blades to produce a larger air flow when the... | 03/27/2007 |
| 7192254 | Radial fan having axial fan blade configuration The present invention is a radial fan having an axial fan blade configuration. The present invention comprises a hub; a first set of blades around the hub; and a second set of blades on the extending part. Therein, the hub comprises a hollow at the center, an axle, ... | 03/20/2007 |
| 7186087 | Method and apparatus for a dispensing system with a dual direction paddlewheel A dual rotation paddlewheel includes tangs that are equally effective in either direction of rotation. The paddlewheel includes tangs disposed around an outer periphery of a body. The dual rotation paddlewheel includes a primary face for use in a first direction and... | 03/06/2007 |
| 7165942 | Fan impeller with integrated grease separation, especially for cooking appliance The disclosure relates to a fan impeller including a base plate and a plurality of fan impeller blades fixed to the plate. The fan impeller blades are positioned in an essentially vertical manner on the base plate and have a substantially radial arrangement, each fa... | 01/23/2007 |
| 7156609 | Method of making complex twisted blades with hollow airfoil cross section and the turbines based on such A reactive turbine, each blade of which approximates a helical shape that is constructed with readily available conventional manufacturing techniques. The blades are constructed in discrete straight sections that, when joined, approximate a helix or any other effici... | 01/02/2007 |
| 7121799 | Turbofan and mold manufacturing the same A mold to mold an integral turbofan having a rotating plate joined to a drive motor, an outer ring concentrically disposed outside of the rotating plate with a spacing therebetween, a plurality of blades radially arranged on a front face of the rotating plate and in... | 10/17/2006 |
| 7118323 | Vertical tower fan A portable, vertical tower fan capable of generating a vertically oriented exhaust air stream that conforms better to a user at an elevation above a support surface. The device includes an vertically elongated housing, an air blower assembly located within the elong... | 10/10/2006 |
| 7070317 | Method of mixing using vaned mixing device The present invention is a mixing device and a method of mixing viscous fluids with a mixing device. The mixing device includes a shaft and a support mounted for rotation with the shaft. A plurality of vanes extend from the support and are mounted for rotation with ... | 07/04/2006 |
| 6945753 | Smoke exhauster having improved fan device A smoke exhauster includes a motor attached to a housing, and a fan device attached to the motor and to be driven by the motor. The fan device including an upper plate, a lower plate having a bore, and a number of fan blades secured between the upper and the lower p... | 09/20/2005 |
| 6942459 | Modified centrifugal fan wheel The modified centrifugal fan wheel comprises a hollow hub and a set of blade. A hollow hub axis is disposed at the center of a hollow portion of the hollow hub. Along a top side surface of the hollow hub is a curved guiding inlet part and along a bottom side surface... | 09/13/2005 |
| 6921330 | Front chaffer and cleaning fan A cleaning shoe of an agricultural combine is provided with a front chaffer located upstream from the main chaffer. The front chaffer has a closed upstream portion and an open downstream portion. The closed upstream portion is upwardly inclined and the open downstre... | 07/26/2005 |
| 6866481 | Ventilator having an optimum fan structure A ventilator fan structure includes a disk-shaped seat, an annular plate, and a plurality of blades. Each of the blades is arranged in an oblique manner along a rotational direction of the fan structure and has a primary blade portion and a secondary blade portion w... | 03/15/2005 |
| 6648936 | Oil mist eliminator An oil mist eliminator includes an impeller rotating about its axis in one direction within a casing having an inlet and an outlet. The impeller includes a plurality of circumferentially spaced blades held between front and rear discs. The front disc has ... | 11/18/2003 |
| 6556437 | Ergonomic carrier for hot-swap computer components A fan carrier assembly for hot swap computer components such as computer fans is provided. The fan carrier assembly preferably includes a handle operable to engage a pair of latches such that when the handle is employed to remove the carrier and component... | 04/29/2003 |
| 6468038 | Fan, method for producing the fan by molding molten metal, and device for producing the fan by molding molten metal A fan according to the present invention can be monolithically molded out of a metal with a low energy in combination with a structure of a metal mold, in which gate arrangement and/or distribution of dimensions of vanes is devised in injecting a low melt... | 10/22/2002 |
| 6416285 | Process for manufacturing an impeller A method for producing a rotor of a fan, which has support disks and lamellae which each have a curved cross-sectional profile, is proposed. The method is distinguished by the fact that firstly the lamellae are pushed axially into receiving openings in th... | 07/09/2002 |
| 6402473 | Centrifugal impeller with high blade camber A centrifugal impeller with high blade camber exhibits relatively high non-dimensional pressure and flow performance while maintaining a high operating efficiency. This invention suits itself towards applications where high operating efficiency is require... | 06/11/2002 |
| 6368062 | Turbo fan for range hood and range hood storing turbo fan The spring-back state of the blade press formed from the metallic thin plate is restricted to form the blade of wing sectional shape strictly in accordance with the design. The blade is formed into the wing sectional shape having a hollow inner part with ... | 04/09/2002 |
| 6345956 | Impeller of a blower having air-guiding ribs with geometrical configurations An air-guiding impeller for a blower. The impeller includes a rotary shaft adaptable for a motor, an annular frame, blades formed on the annular frame, and air-guiding ribs interconnected between the annular frame and the rotary shaft and inclined with re... | 02/12/2002 |
| 6220818 | Blower wheel assembly with steel hub, and method of making same The invention includes a blower wheel assembly and method characterized by a hub formed with a piece of annealed carbon steel tubing cut to an appropriate length. The tubing is formed into the hub by a tube end forming machine. The hub includes a first tu... | 04/24/2001 |
