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Fluid reaction surfaces (i.e., impellers)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
416223000 SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.) 1200
416204000 SPECIFIC WORKING MEMBER MOUNT 518
416001000 METHOD OF OPERATION 418
416095000 WITH HEATING, COOLING OR THERMAL INSULATION MEANS 384
416179000 ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE 218
416244000 SUPPORT MOUNTING, CARRIER OR FAIRING STRUCTURE 186
416147000 HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT 154
416031000 WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST 131
416131000 ARTICULATED, RESILIENTLY MOUNTED OR SELF-SHIFTING IMPELLER OR WORKING MEMBER 101
416009000 WITH MEANS POSITIONING FLUID CURRENT DRIVEN IMPELLER RELATIVE TO FLOW DIRECTION 72
416146000 COMBINED OR CONVERTIBLE 70
416061000 WITH MEASURING, TESTING, SIGNALLING OR INSPECTION MEANS 66
416170000 SPECIFIC DRIVE OR TRANSMISSION MEANS 62
416144000 WITH WEIGHT-BALANCING MEANS 60
416098000 SUSTAINED ANCILLARY MOVEMENT OF ROTARY WORKING MEMBER (E.G., CYCLIC FEATHERING, ETC.) 56
416120000 PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS 49
416090000 WITH FLUID PASSAGE IN WORKING MEMBER COMMUNICATING WITH WORKING FLUID 48
416174000 HAVING LUBRICATING, SEALING, PACKING OR SPECIFIC BEARING MEANS BETWEEN IMPELLER OR SHAFT AND STATIC PART 47
416023000 WITH MEANS MOVING WORKING FLUID DEFLECTING WORKING MEMBER PART DURING OPERATION (E.G., AILERON, ETC.) 44
416198000 MULTIPLE AXIALLY SPACED WORKING MEMBERS 27
416087000 RADIALLY EXTENSIBLE OR RETRACTIBLE ROTOR WORKING MEMBER 18
416169000 HAVING CLUTCH OR BRAKE MEANS 17
416093000 AMBIENT FLUID OR EXHAUST GAS DIRECTED THROUGH HUB, FAIRING OR HOUSING 16
416248000 MISCELLANEOUS (E.G., BLADE ROOT OR ROOT BLOCK, ETC.) 16
416197000 CUPPED REACTION SURFACE NORMAL TO ROTATION PLANE 16
416176000 SPIRAL BLADE OR FLOW PASSAGE (360 DEGREE) 16
416005000 WITH ILLUMINATION MEANS 14
416085000 FLOAT SUPPORTED 13
416194000 LASHING BETWEEN WORKING MEMBERS OR EXTERNAL BRACING 12
416062000 REMOVABLE AUXILIARY ATTACHMENT TO WORK SURFACE 12
416142000 WORKING MEMBER FOLDABLE, PIVOTABLE OR COLLAPSIBLE TO NON-USE POSITION 12
416178000 PERIMETRIC BLADING EXTENDING AXIALLY BETWEEN ANNULAR MEMBERS (E.G., SQUIRREL CAGE TYPE, ETC.) 11
416203000 UNSYMMETRICAL IMPELLER OR DISSIMILAR WORKING MEMBERS 8
416020000 DRIVE BY FLUID REACTION JET ON WORKING MEMBER 6
416247000 PROTECTIVE SCREEN OR GUARD 6
416079000 OSCILLATORY REACTION MOTION 5
20110064576Wind Oscillator for Power Generation - A wind oscillator configured for power generation is provided. The wind oscillator includes an upwardly oriented elongate rotatable support beam configured to rotate to enable the wind oscillator to be approximately oriented with respect to a wind direction, a bracket supported by the support beam, the bracket extending transversely and outward therefrom, a shaft operably connected to the bracket at a first end of the shaft, and a gear attached to a second end of the shaft. The wind oscillator further includes an oscillating arm pivotably disposed approximately atop of said support beam, wherein the shaft is disposed upon the oscillating arm, and the oscillating arm being configured to move upwardly and downwardly with respect to the support beam in a reciprocating arrangement, an elongate transverse bar supported by a first end of the oscillating arm, elongate first and second wing bars oriented transversely with respect to the elongate transverse bar, wherein the oscillating arm, the elongate transverse bar, and the wing bars are on approximately a same plane, and a leading wing rotatably connected to and extending between the first and second wing bars.03-17-2011
20130216381OSCILLATING FOIL TURBINE - An oscillating foil turbine has a foil having a first fluid dynamic surface for producing lift in a fluid flow, a support for the foil, and a second fluid dynamic surface, wherein the support allows for cyclic motion of the first and second surfaces with respect to each other. A driven member is provided to tap energy from flow throughout each cycle. Throughout at least part of the cyclic translation, the fluid dynamic surfaces are oriented sufficiently parallel, and separated by a distance that is sufficiently small, to achieve a substantial wing-in-ground effect.08-22-2013
20110076144Fluid Interacting Device - A rotary turbine including at least one blade is disclosed. The rotary turbine includes a blade arrangement in which the orientation of the at least one blade movably changes relative to the fluid flow and also changes relative to an orbital path taken by the rotary turbine thereby increasing flow area usage and minimizing friction. Certain embodiments of the present disclosure include a rotary turbine with blade orientations that are linearly coupled to the orbital orientation of the turbine. Other embodiments of the present disclosure include a rotary turbine with blade orientations that are non-linearly coupled to the orbital orientation of the turbine.03-31-2011
20110255971APPARATUS FOR OSCILLATING A FOIL IN A FLUID - The invention relates to an apparatus for oscillating a foil in a fluid. The apparatus according to the invention comprises a first crank mechanism and a second crank mechanism connected to a foil. Said first crank mechanism and said second crank mechanism have different crank pin offsets, are functionally connected such that when driven the speed of revolution of said first crank mechanism is the same as the speed of revolution of said second crank mechanism, and are out of phase with each other.10-20-2011
20130195659Ornithopter aircraft transmission - This invention is regarding an aircraft transmission that is designed to enable an ornithopter aircraft to take off vertically by generating lift through precision controlled oscillating propellers or wings, similar but unlike a helicopter rotor blade and has the uncanny ability for aerobatic flight. A gearless infinite variable oscillating transmission for ornithopter aircraft oscillatory motion propulsion, wherein the oscillatory motion is generated by a wobble plate and propulsive motion is propellers, wings, or any other propulsive action or phenomena, characterized by two parts, or pairs of elements, of the same potential capacity, which oscillate in series on opposed fronts with each propulsion unit capable of operating independently of the other. Infinite variable oscillating transmission is used to power numerous mechanical devices.08-01-2013
416002000 HAVING FRANGIBLE OR FUSIBLE PART OR CONNECTION 5
20130052012METALLIC FAN BLADE PLATFORM - A platform is provided for use between adjacent fan blades joined to a rotor disk to provide an inner flowpath boundary. The platform includes: a metallic arcuate body with opposed forward and aft ends and opposed lateral edges; and a pair of frangible wings that extend from the lateral edges laterally and radially beyond the body.02-28-2013
20100054938BLADE AND A METHOD FOR MAKING A BLADE - International regulations for aerofoils within gas turbine engines require the safe containment of a released aerofoil. The blade fragments must be contained within an engine casing. Smaller fragments will generally be easier to contain within the casing and therefore reduce the weight of that casing. However introducing lines of weakness may result in cavities and holes which are subject to moisture ingress and problems associated therewith. By providing a root section which incorporates a core having shear surfaces, blades can be designed which in normal use are subject to compressive loads and remain operational, but when subject to impact loads or bending forces create tension forces which cause fragmentation along the shear surfaces after initial energy losses by slippage. By providing the shear surfaces in cores their location is encapsulated avoiding problems with moisture ingress.03-04-2010
20110085906FAN RETENTION SHAFT - A fan retention shaft is provided for retaining a fan within a gas turbine engine in the event of fan shaft failure. The fan retention shaft has a first shaft which in use extends from the engine and a second shaft to which in use the fan is attached, the second shaft being coaxial with the first shaft and the first and second shafts defining an annular passage between them. An energy absorbing medium is disposed within the annular passage. The fan retention shaft has a retaining formation for preventing the first shaft and the second shaft from moving axially with respect to one another. The retaining formation is configured to release the first shaft and the second shaft from their relative axial positions when a threshold axial load is applied to the fan retention shaft. The energy absorbing medium is arranged to absorb kinetic energy from the second shaft as the second shaft moves axially with respect to the first shaft.04-14-2011
20100054937BLADE - A fan blade for a gas turbine engine has an aerofoil part and a root part. The root part includes a root former; the root former 03-04-2010
20120020789TURBINE WHEEL HAVING DE-TUNED BLADES AND INCLUDING A DAMPER DEVICE - A turbine wheel including: a plurality of first and second blades, at least one of the first blades being adjacent to at least one of the second blades; a disk presenting an axis of rotation and a periphery having the blades mounted thereat, each of the blades including a head solid with a root engaged in a housing that opens to the periphery of the disk, each of the blades including a keying mechanism including a respective shelf arranged between the head and the root of the blade, the shelves of the first blades presenting an azimuth length different from the azimuth length of the shelves of the second blades; and a damper device arranged at least between the adjacent blades, the damper device being arranged between the shelves of the blades and the periphery of the disk.01-26-2012
416069000 OPERATOR SUPPORTED MANUALLY ACTUATED TYPE 5
20080232964Daisy fan - Here is disclosed an elongate style portable mechanical fan device having an elongate body handle portion including a four blade fan device mounted on the top end of the body portion. The elongate handle portion is designed with a spring loaded grip for mechanical squeeze operation. A twist top scent canister is mounted on center at the top of the four blade fan device. A further embodiment contemplates that scent drops may be added to a mini sponge located in this scent canister or a scent stick may be added in place of the mini sponge, so that the rotating fan blades will disseminate the scent emanating from the scent canister.09-25-2008
20100003135 BLANK CONFIGURABLE AS A MANUALLY OPERABLE FAN OR DISPLAY - Disclosed is a blank (200) formed of resiliently flexible sheet material. The blank comprises a first portion (208) operative in a planar configuration and a second portion (204) having means (210, 218) for joining thereof upon configuring of the second portion to form a tubular structure (240). Also disclosed are a manually operable fan configurable from the blank, and a display article configurable form the blank.01-07-2010
20130101418ADJUSTABLE PADDLE - Embodiments are disclosed that relate to adjustable kayak paddles. One disclosed embodiment provides a paddle including a first shaft section having an outer surface with one or more indicia and a second shaft section angularly positionable relative to the first shaft section about a paddle axis, the second shaft section being configured to at least partially surround the outer surface of the first shaft section is provided. The second shaft section further includes a viewing opening configured to permit viewing of one or more of the indicia therethrough when the first and second shaft sections are coupled together. The paddle further includes a coupler operable to releasably couple the first shaft section with the second shaft section at a plurality of angular positions.04-25-2013
20130039776Whitewater Hand Paddles - A hand paddle having a handle (hand grip) attached to the hand paddle blade allows the user to grip the hand paddle intuitively and ergonomically for use in whitewater with kayaks or boats. The paddle blade has a contoured hand well, which allows the handle to be positioned closer to the hand paddle blade substantially reducing the rotating force (torque) to the user's hands. The handle configuration allows user to quickly release the paddle in order to use hands in case of an emergency. The hand paddle further comprises a hand strap to prevent the paddle from rotating/pivoting in the user's hands. The hand paddle further comprises a lanyard, designed to break away under the weight of the user, securing the hand paddle to the user's wrist or forearm.02-14-2013
20110027101CONVERTIBLE PADDLE SYSTEM - A paddle useful for paddle boarding comprises a shaft having a first end and an opposed second end, a first blade at the first end of the shaft, and a handle at the second end of the shaft. There is a second blade proximate the second end of the shaft. The second blade is moveable between first and second positions. The first position allows the handle to be used by the second blade being closer to the first end of the shaft that is the handle, i.e., a single blade configuration. In a double blade configuration, the second blade is in a second position that allows the second blade to be used by a portion of the second blade extending at least as far as the handle.02-03-2011
416003000 ACTUATION DIRECTLY RESPONSIVE TO MAGNETIC OR ELECTRICAL EFFECT 5
20130039761VERTICAL WIND TURBINE WITH ARTICULATED BLADES - A vertical wind turbine to catch the wind force characterized by its system of aerodynamic panels are provided with blades fixed into horizontal axis that open and close simultaneously and symmetrically upward and downward due the gears like the butterfly wings rotated by 90° of its normal position, it is like opens an umbrella horizontally to receive on one side the wind buoyancy or pressure and in the other side close by the action of the wind. The top and bottom blades works as counterweight one to another both to open and close (flatness) which makes your weight null in relation to the effort of wind to open or close them independent of the self-weight of the blades what propitiate the maximum use of the wind force in the traction side without loss to the return of the blades to the traction position driving a vertical axis.02-14-2013
20110200434MAGNETIC MICROPARTICLE AND METHOD FOR MANUFACTURING SUCH A MICROPARTICLE - A microparticle includes an oblong flexible tail able to propel the microparticle in a solution along a trajectory using beats transverse to the trajectory, the tail including at least one magnetic element such that the magnetic element causes beats of the tail under the action of an external alternating magnetic field non-collinear with the trajectory and a head mechanically connected to a proximal end of the tail. The microparticle includes at least one layer of material formed from one piece and including the tail and the head, the dimensions and/or shape of the head being selected such that the beats of the proximal end of the tail are limited with respect to the beats of the distal end of the tail and such that the head does not perform a complete revolution around an axis parallel to the trajectory under the effect of the external alternating magnetic field.08-18-2011
20120070282High torque vertical axis windmill - A high torque vertical axis windmill that has blades with curved parts secured together. The second part of each blade is movable to deploy the maximum surface of the blade to the wind for maximum torque during a portion of the cycle of the blades. The second part of each blade is movable to a second position to deploy the minimum surface of the blade to the wind for minimum drag during another portion of the cycle of the blades.03-22-2012
20110064575CEILING SWEEP FAN - A ceiling sweep fan comprising a rotor supported for axial rotation about upper and lower housings, the rotor supporting a plurality of radially extending fan blades, the upper housing and rotor enclosing an electric motor that drives the rotor; wherein the fan includes stop means to cause the rotor to stop at a fixed position relative to the upper and lower housings.03-17-2011
20130170985ELECTRICAL POWERED TAIL ROTOR OF A HELICOPTER - The invention is related to an electrical powered tail rotor (07-04-2013
416007000 WORKING MEMBER SUPPORTED ON ENDLESS FLEXIBLE CARRIER 4
20100239420HYDRO-POWER PLANT - Disclosed is a power generating system utilizing hydraulic force, and, more particularly, is a hydraulic power generating system, in which a plurality of water receiving plates are mounted on an elongated looped rail floating on the surface of water, thereby allowing the looped rail to be rotated by hydraulic force. To solve a conventional problem in that each of the water receiving plates on the looped rail receives a deteriorated hydraulic force due to the presence of a preceding water receiving plate and results in low use efficiency of hydraulic force, the looped rail is obliquely installed with respect to a water flow direction by an angle of 10 to 45 degrees, and the water receiving plates are installed at a right angle to the water flow direction. With this arrangement, each water receiving plate can receive a predetermined hydraulic force without deterioration of the hydraulic force due to the presence of a preceding water receiving plate, and consequently, the hydraulic power generating system can achieve improved hydraulic power generation efficiency.09-23-2010
20080247871Self-orienting, linear drive apparatus for harvesting power from the wind - Apparatus for harvesting power from the wind, mounted on a vertical support or pole, has two linear “power harvesting devices” arranged in V-shaped configuration with the apex of the “V” mounted for rotation in a horizontal plane about the vertical support. The two power harvesting devices move under the influence of incoming wind to orient themselves such that the apex of its “V”-shape structure always faces the incoming wind. The power harvesting devices are each provided with blades attached for movement with a linear endless drive conveyor. With the apex of the “V” facing the wind, the blades are oriented to intercept this wind and to cause movement of the conveyor drive to which they are attached.10-09-2008
20080273974Wind turbine device - A hybrid blade wind turbine device formed of at least a pair of straight outer airfoil blades, and a pair of inner helical wing blades, as supported for rotation within a safety protective cage structure, which wind turbine can be mounted in the vertical, horizontal, or other aligned operational positions. The inner helical half wing blades, being preferably somewhat shorter than the length of the outer airfoil blades, act to “regularize” the swirling wind regime flowing through the hybrid wind turbine, so as to maximize the efficiency of the outer airfoil blades. The helical half wing blades can be formed of individual segmented vane segments to provide improved operational capabilities for the overall hybrid wind turbine. To best harness annualized available wind conditions, the hybrid wind turbine can be customized, through modification of the number of vane segments, the selection of the specific shape of the outer airfoil blades, and the specific operational positioning of the outer airfoil blades. Alternatively, the helical halfwing blades can be formed as generally smooth-walled blades.11-06-2008
20130202435Energy mind will - The present invention has for object to show how to realize a machine allowing to transform fluid energies into mechanical energy, or conversely, mechanical energy in fluid energy, this machine being able to be used as windmill, in air or in water, as vacuum cleaner, in air or in water, as propeller, as pump, in air or in water, this machine having the capacity to produce or to receive some energy, with a volume of much lower the one that one realizes at present with windmill, or conventional pumps, or other hatch current. The present invention will show afterward supplementary versions of the energy windmill, notably by showing various capacities of pales, capable of realizing energy windmill in their version engines, either in their version compressive, or in other words in their version condensatrice or expansive, additional modes of entrance and exit of fluids, notably outside towards the centre, or still by highly-rated rectilinear towards highly-rated hooked, supplementary combinations allowing to realize them in a staged way, and to produce jet turbines or turbines of expansion, various modes of supports of pales, various additional applications, as vacuum cleaner, ventilator, propeller, pump, jet turbine turbines of expansion08-08-2013
416084000 BUOYANT OR INFLATABLE WORKING MEMBER 4
20130034441MULTIPLE-LAYER STRUCTURE OF INFLATABLE DEVICE CAPABLE OF PRESSURE RESISTANCE - A multiple-layer structure of inflatable device capable of pressure resistance includes a gasbag unit and a reinforcing shape-forming net. The gasbag unit includes a gas inlet, a flexible waterproof inner tube for fluid communication with the gas inlet, and a flexible material of outer tube covering the flexible waterproof inner tube, wherein the gasbag unit and the reinforcing shape-forming net covering the gasbag unit are both in independent structures. When the gasbag unit become expanded over the reinforcing shape-forming net, the reinforcing shape-forming net will resist the applied force from the gasbag unit, so that the gasbag unit can be made of a light weight material and thus the maintenance and renew become easy. The present invention is not only easy in maintenance but also efficiently reducing cost for all kinds of inflatable products and environment protection.02-07-2013
20100266406Turbine Arrangement - A turbine arrangement for extracting energy from flowing water, the turbine arrangement s including a screw turbine with a suspension means, buoyancy element and bottom mount, and necessary transmission elements for transmitting energy to a power machine, and the turbine arrangement including at least two parallel screw turbines.10-21-2010
20100143130INFLATABLE WIND TURBINE BLADE AND METHOD FOR FORMING SAID ROTOR BLADE - An inflatable rotor blade for a wind turbine includes a flexible skin. The flexible skin assumes, when inflated by means of an inflation medium, the shape of an airfoil which has an inner cavity. When the inner cavity is formed, at least one stiffener unit is arranged in the inner cavity of the rotor blade and maintains the airfoil shape of the flexible skin.06-10-2010
20100111696Counterbalanced orthogonal hydropower system - A counterbalanced orthogonal hydropower system for generating electricity comprises -an upper and lower turbines made as ring-shaped platforms, each incorporating a rotor, the turbines include hydro-dynamical blades positioned to rotate the turbines in opposite directions, -variously disposed inductors, -a tower mounted on a water reservoir's bottom, -a frame, supported by the tower and peripherally surrounded by a rigid polygon-shaped structure having vertexes, -units for rotatable support of the turbines associated with the frame, and -units for support of the inductors, wherein the latters are attached to the vertexes through spring-loaded hinges. It may also comprise units for support of the circular shape of platforms, for braking rotation of the turbines, for unloading the turbines from lateral forces, and for unloading the turbines from vertical forces. The top turbine may have negative buoyancy, while the bottom turbine and frame may have positive buoyancy. The frame can be made of hollow rods.05-06-2010
416175000 DIVERSE IMPELLERS OR WORKING MEMBERS 3
20110091323COMPRESSOR HOUSING FOR TURBOCHARGER - A compressor impeller 04-21-2011
20120128496WIND ENERGY USE - The invention provides wind energy use. One application provides wind energy use for water harvesting from natural humid air. The method is based on changing thermodynamic state properties of ambient airborne wind passed through a convergent-divergent system. The device comprises a cascade of sequentially arranged wind converging and wing-like components. Those components transform the wind into fast, cooled, out-flowing air portions. The decrease in static pressure and temperature triggers condensation of water-vapor into water-aerosols. Another application of the method provides an effective mechanism for harvesting electrical energy from naturally warm air using renewable wind energy, including the wind inertia, internal heat, and potential energy stored in the air mass in the Earth's gravitational field. The electrical energy harvesting mechanism is also applicable to use of natural renewable energy of streaming water.05-24-2012
20130183155FUEL SYSTEM CENTRIFUGAL BOOST PUMP IMPELLER - A centrifugal boost pump inducer section includes a plurality of inducer main blades, and a plurality of splitter blades, each of which includes normal to the blade mean line cross sectional surfaces distributed over the length of the blades, the cross sectional surfaces defined as a set of R-coordinates, theta-coordinates and Z-coordinates relative to an impeller outer diameter set out in one set of tables. A centrifugal boost pump impeller section includes a plurality of impeller main blades, a plurality of primary splitter blades, and a plurality of secondary splitter blades, each of which includes normal to the blade mean line cross sectional surfaces distributed over the length of the blades, the cross sectional surfaces defined as a set of R-coordinates, theta-coordinates and Z-coordinates relative to an impeller outer diameter set out in another set of tables.07-18-2013
416063000 AMBULANT, BODY SUPPORTED OR WITH CARRYING HANDLE 3
20110280726CAP HAVING PIVOTABLY MOVABLE FAN - An article of headwear having a body with a hole extending completely through bottom and top surfaces thereof and a cooling device mounted to the article of headwear. The cooling device is mounted via a mounting ring received at the hole which mounts the cooling device to the body at the through hole to permit selective manipulation of the cooling device about a horizontal axis in a range between 0 to 360 degrees relative to the headwear body and the mounting ring.11-17-2011
20100290907PORTABLE FAN - Two embodiments of a portable fan for use in the cup holder of a recreational vehicle such as a golf cart are shown and described. In the first embodiment, a bottle-shaped body has a cup-shaped lower portion separated from the body by a shoulder which acts as a limit stop when inserting the base into a cup holder. A shrouded impeller is pivotally connected to the top of the base and exhibits an integral carry handle. The entire structure is made of a suitable plastic such as high density polyethylene. In the second embodiment, the impeller is located intervally of the body for safety and a bell-shaped outlet directs air through a diffuser with circular louvers.11-18-2010
20120020790Personal Propulsion Device With Hands Free Control - An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. In one embodiment, the device includes an air compressor that is operatively connected to a cam mechanism engaged with the propulsion mechanism to provide compressed air. In another embodiment, the device includes a gap control mechanism to reduce or increase the size of the air inlet gap between the lip of the propeller shroud and an air horn to decrease noise levels or increase propulsion. The air horn can be gradiently flexible and warpable to allow controlled movement thereof.01-26-2012
416054000 OPERATED BY ART DEVICE 2
20110020121AXIAL FLOW FAN FOR EXTERNAL ROTOR - An axial flow fan for an external rotor, including at least: an axial flow blade, a support comprising an annular cylinder and multiple installation pins, and an external rotor motor comprising an external rotor. The installation pins are extended from the outside of the annular cylinder. The axial flow blade is disposed on the installation pin. The annular cylinder is fit on the external rotor of the external rotor motor. The flow fan features simple and convenient assembling, reliable connection, high production efficiency, low requirement for workers, and low production cost.01-27-2011
20080286102Roof fans generating vehicle - The invention is related to the driving force booster for the vehicle installed with the fan on the roof to be operated with head wind in the driving operation to generate the electricity to be charged for the battery to provide the additional driving energy.11-20-2008
416202000 PROJECTING BLADE AXIS OFFSET FROM ROTATION AXIS 2
20110262276VERTICAL AXIS WIND TURBINE - A vertical axis wind turbine includes an upstanding support structure, a plurality of generators disposed on the support structure, a central shaft in rotatable communication with the generators and positioned along a central axis of the vertical-axis wind turbine, a plurality of struts extending from the central shaft, and a plurality of blades, each blade positioned at an end of a corresponding strut and oriented substantially vertically. The vertical axis wind turbine optionally includes strut ailerons, blade extension elements, or blade ailerons to increase the efficiency and duty cycle of the wind turbine.10-27-2011
20130094967VERTICAL AXIS WIND TURBINE SYSTEM - A vertical axis wind turbine system is revealed. Two vertical axis wind supply units are arranged beside a support rod and between an upper and a lower connection plates. The vertical axis wind supply unit includes blades around a rotor shaft. Each blade includes a blade body and valves. The blade body is a helical plate having a plurality of crossed barriers and insertion holes among barriers. Moreover, the valves are fixed on an upwind surface of the blade body and an upper side of the valve is connected to the blade body. Each valve is corresponding to at least one insertion hole. Each of the two rotor shafts are connected to a generator set by a transmission set. When wind turns the blades, each blade spin the rotor shaft and the transmission set transfers energy generated by the rotating blades to the generator set for conversion to electrical power.04-18-2013
416064000 TRANSLATORY REACTION MOTION 2
20090246022FIRE FIGHTING PUMP AND ITS OPERATING METHODS - A fire fighting pump and operation thereof and a fire fighting system and a fire engine, wherein the pump includes a housing, a motor mounted inside the housing and two or more stages of series-connected impeller assemblies. A water inlet is provided on the housing between the motor and the impeller assemblies. The impeller assemblies are mounted on the impeller shaft coaxially and in series with each other. The impeller shaft is fixed on the motor shaft or is coaxial with the latter. The impeller assembly includes a thruster, an impeller, an end cover and a retaining ring on the periphery of the thruster and the impeller, and those four elements are installed in turn. Several first blades are provided in the thruster and several second blades which correspond with the first blades in amount and location are provided in the impeller.10-01-2009
20130052014SPINNAKER SAILS FROM INTERWOVEN STRAPS FOR GENERATING ELECTRIC POWER FROM WIND - New types of “airborne spinnaker sails” are disclosed, made from high-strength straps that are interwoven in a manner that preserves open space between them. These devices, referred to as “webbing sails” or simply “web sails”, are designed for use in conjunction with buoyant lifting devices, to capture and harvest wind energy in a way which will generate large mechanical pulling forces, which can be used to drive electric power generators. These types of web sails are designed to operate in winds that exceed 100 or even 150 miles per hour.02-28-2013
416025000 INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS 2
20110002783CEILING FAN - A ceiling fan comprising a motor which rotates a plurality of blades provided in a horizontal direction, a shaft projecting from an upper portion of the motor, a pipe which is connected to an upper end of the shaft and which hangs from a ceiling surface, a connecting rod for connecting the pipe and the shaft with each other via through holes formed in the pipe and the shaft, respectively, a female screw which is threadedly engaged with the connecting rod, a displacement-correspondence tool which is displaced or which detects a displacement amount in correspondence with a relative positional displacement amount between the shaft and the pipe, and a power source control tool which controls energization to the motor in accordance with the displacement of the displacement-correspondence tool or the detected displacement amount.01-06-2011
20110255969WIND TURBINE WITH CONTROL SYSTEM - The present invention relates to a wind turbine assembly comprising a turbine having turbine blades, said turbine being arranged to generate a rotational energy as the turbine blades are engaged by a wind, characterized in that said wind turbine assembly further comprises an emergency brake that is operationally connected to the turbine blades for pitching the turbine blades towards a rest position by the rotational energy of the turbine, when the emergency brake is activated.10-20-2011
416019000 SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE 1
20100278646Fan, especially a ceiling fan with a balanced single blade - Described is a fan with a blade suitable for use as a ceiling fan. The blade may be regarded as a single blade, although shaft is not attached to blade at one end thereof; rather, shaft is attached to blade at a point between first end and second end. Blade is balanced by counterweights located in blade. In one embodiment, blade is connected to shaft by means that permit angular movement, such as a teeter hinge.11-04-2010
416500000 VIBRATION DAMPING FEATURES 1
20110033310ELECTROMAGNETIC INERTIAL ACTUATOR - An electromagnetic inertial actuator includes a support base and a parallel arrangement of a first flexure part, a voice coil motor part, and a second flexure part. The parallel arrangement is cantilevered from the support base.02-10-2011
416004000 ROTARY SKIN FRICTION TYPE (E.G., MAGNUS ROTOR, ETC.) 1
20110318179WIND TURBINE AND METHOD OF OPERATING SAME - A turbine blade assembly (12-29-2011

Patent applications in all subclasses Fluid reaction surfaces (i.e., impellers)