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| Number | Title | Issue Date |
| 7931441 | Inducer with tip shroud and turbine blades A two blade row inducer for a low pressure pump in a turbopump of a rocket engine. The inducer includes a first set of blades and a second set of blades or partial blades in which the partial set of blades is covered with a shroud and the shroud includes a row of tu... | 04/26/2011 |
| 7371003 | Mixer foot and hand held mixer equipped with the foot A foot component of a hand mixer or blender, the hand mixer or blender having a case that houses a motor and the foot component being constructed to be coupled to the case. The foot component is composed of: a tube having a lower end; a bell made of a first material... | 05/13/2008 |
| 7290987 | Impeller hub for torque converter A direct replacement impeller hub for the torque converter of an automatic transmission and a method of repairing an impeller assembly utilizing the replacement impeller hub to provide increased service longevity. In the present impeller hub the geometric roundness ... | 11/06/2007 |
| 7172477 | Safety propeller A safety propeller for a boat motor includes an annular collar having a front opening, a rear opening and a continuous peripheral wall. A plurality of angled, horizontal slits are circumferentially positioned about the peripheral wall to allow water to pass through ... | 02/06/2007 |
| 7001155 | Compressor impeller with stress riser A compressor impeller for use with a boreless turbocharger is provided in accordance with this invention. The compressor impeller comprises an integral hub projecting axially therefrom that includes a partial bore therein that extends from an open to a close bore en... | 02/21/2006 |
| 6963802 | Method of coordinating and stabilizing the delivery of wind generated energy The invention relates to a method of coordinating and stabilizing the delivery of wind generated power, such as to a power grid, so as to avoid sudden surges and spikes, despite wind speed fluctuations and oscillations. The method preferably uses a plurality of wind... | 11/08/2005 |
| 6940185 | Advanced aerodynamic control system for a high output wind turbine An advanced aerodynamic control system for a wind turbine including a drive shaft and blade. The control system includes an air control system coupled to a duct that extends from a first end toward a second end of the blade. A slot extends along a portion of a surfa... | 09/06/2005 |
| 6927503 | Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid The present invention relates to a wind energy generating and storing system comprising methods and apparatuses for providing energy dedicated for immediate use and energy storage, to provide electrical power on an uninterrupted and continous basis, to locations rem... | 08/09/2005 |
| 6852025 | Vertical ventilator for outdoors and/or indoors Based on a hollow column (1), terminating at the bottom in a baseplate (2) and at the top in a core (3) from which vanes (4-4′), also hollow and connected with the column (1), emerge; a motor-fan (6-7) is installed in the ... | 02/08/2005 |
| 6786150 | Printing press roll having auxiliary rotation capability A roll for a web printing press includes a cylindrical member configured for supporting a web, the cylindrical member being rotatable about an axis of rotation. A motor device is disposed at the axis of rotation for rotating the cylindrical member so as to advance t... | 09/07/2004 |
| 6257498 | Method and apparatus for an agricultural air handler An economical and compact air handler specially configured for use in agricultural applications is provided. The agricultural air handler includes a shroud formed to surround a rotating shaft having a propeller attached to each end of the shaft. The prope... | 07/10/2001 |
| 5975848 | Ceiling fan having rotary inner housing A ceiling fan includes an outer housing and a cap secured on top of the outer housing. A shaft is secured to the cap and a motor is disposed in the outer housing and secured to the shaft for driving a number of fan blades. An inner housing is rotatably di... | 11/02/1999 |
| 4936748 | Auxiliary power source in an unducted fan gas turbine engine A power takeoff for an unducted fan gas turbine engine having first and second counterrotating coaxial rotors coupled respectively to first and second propellers. The rotors and propellers are oriented for rotation about a longitudinal axis of the engine.... | 06/26/1990 |
| 4916894 | High bypass turbofan engine having a partially geared fan drive turbine The present invention provides a high bypass turbofan engine configuration wherein a fan drive turbine is divided into first and second turbine sections mounted for independent rotation within the engine frame. The first, higher pressure, higher speed tur... | 04/17/1990 |
| 4915586 | Propfan blade attachment A blade attachment between a propfan blade and a propfan hub in a propfan propulsion system for a tube-launched expendable aircraft, the attachment including a hinger on a rotatable propfan hub on the aircraft, a stem of the propfan blade rotatably suppor... | 04/10/1990 |
| 4892269 | Spinner ducted exhaust for pusher turboprop engines A pusher turboprop engine is provided with an interior exhaust duct structure which directs the hot turbine gasses through and out of the engine nacelle to an annular duct mounted on the rear spinner which surrounds the propeller hub. The rotating annular... | 01/09/1990 |
| 4883403 | Impellers for centrifugal pumps A centrifical slurry pump impeller comprises auxilliary vanes located on at least one side surface thereof, an annular projection joining the auxilliary vanes at or adjacent the periphery of the impeller, and at least one further projection extending betw... | 11/28/1989 |
| 4863352 | Blade carrying means Blade carrying means for variable pitch propulsor blades of a gas turbine engine are disclosed. The blade carrying means comprise dual, axially positioned rings and a plurality of generally cylindrical bearing journals supported between the rings. Each of... | 09/05/1989 |
| 4826403 | Turbine A power turbine (12) comprises alternate annular arrays of contra-rotatable turbine blades. Two arrays of turbine blades (30) and (47) have annular arrays of aerofoil propulsion blades (17,18) respectively attached thereto. Alternate arrays of turbine bla... | 05/02/1989 |
| 4817382 | Turboprop propulsion apparatus A turboprop propulsion system where there is a core engine driving a power turbine that is connected through a planetary drive transmission to first and second counterrotating propellers. One of the propellers is connected to the ring gear, while the othe... | 04/04/1989 |
| 4815273 | Single propeller turboprop propulsion apparatus There is a core engine having a turbine section which is drivingly connected to a single propeller through a planetary transmission. The core engine provides a substantially continuous, axially aligned gaseous flow path from the inlet to the discharge noz... | 03/28/1989 |
| 4809498 | Gas turbine engine An improved gas turbine engine is disclosed. The engine includes counterrotating first and second turbine rotors without an intervening nozzle. Disclosed also are means for obtaining pitch relative outlet velocity greater than pitch absolute inlet velocit... | 03/07/1989 |
| 4810164 | Pitch change arrangement for a variable pitch fan A pitch arrangement for a variable pitch fan assembly of a turbofan gas turbine engine comprises a plurality of fan blades, each of which has a root portion rotatably mounted, in a thrust bearing on a fan rotor. A control ring is arranged coaxially with a... | 03/07/1989 |
| 4796424 | Intake for a turbopropeller gas turbine engine The invention relates to intakes for turbopropeller gas turbine engines of the tractor type. A tractor turbopropeller gas turbine engine comprises a gas generator, an upstream propeller and a downstream propeller. The propellers are positioned upstream of... | 01/10/1989 |
| 4766723 | Turbofan gas turbine engine and mountings therefore The present invention relates to turbofan gas turbine engines in which the fan assembly is positioned downstream of the core engine of the turbofan gas turbine engine i.e. an aft fan turbofan. Conventional turbofan engines have the fan assembly positioned... | 08/30/1988 |
| 4767271 | Gas turbine engine power turbine A power turbine suitable for a gas turbine engine which a blade of one array of turbine blades has a fan propulsion blade attached to its radially outer extent. A drum member is further provided which carries at least one further annular array of turbine ... | 08/30/1988 |
| 4767269 | Rotor system, particularly a boat propeller system The invention relates to a rotor system, particularly a boat propeller system, which consists of a main propeller and a turbo unit in the form of a fore-propeller and a turbine mechanically coupled thereto, the turbo unit being freely rotatably journalled... | 08/30/1988 |
| 4765135 | Gas turbine engine A gas turbine engine for an aircraft comprises a gas generator which includes a compressor stage, a combustion chamber, and a turbine for driving the compressor, and through which the air and combustion gases flow from the rear towards the front in relati... | 08/23/1988 |
| 4764313 | Air driven water circulation mill A flotation platform supports a mast assembly through which a drive shaft extends having a wind driven turbine on the upper end and a propeller on the lower end situated below the water surface. The propeller is rotated by the wind turbine and causes loca... | 08/16/1988 |
| 4751816 | Turbofan gas turbine engine An improved arrangement of a turbofan engine comprises a core engine, an upstream fan, a downstream fan and a booster compressor. The upstream fan and downstream fan are both positioned upstream of the core engine, and are arranged to be driven in opposit... | 06/21/1988 |
| 4744214 | Engine modularity The low pressure compressor and fan together with the intermediate case are removable as a unit from the core engine by removal of the nose cone and a stub shaft at the front of the low pressure turbine shaft and at the ID of the fan hub (50) to provide a... | 05/17/1988 |
| 4732538 | Blade hub air scoop Air control means in a gas turbine engine having a variable pitch rotatable airfoil and means for varying the pitch of the airfoil are disclosed. The air control means comprises a platform fixedly attached to a radially inner end of the airfoil. The platf... | 03/22/1988 |
| 4704862 | Ducted prop engine In a gas turbine engine with a bypass duct, a rotating stage of airfoils in the bypass duct is supported through and driven by torque transmitting members extending across the core stream flow path, but which are sufficiently flexible in the radial direct... | 11/10/1987 |
| 4653705 | Autogyro with auxiliary rotor drive An improved autogyro including a main airframe having a main engine and pusher propeller as customarily applied in autogyros, and a lifting rotor having an auxiliary drive for the lifting rotor for tapping a minor portion of power from the main propulsive... | 03/31/1987 |
| 4648801 | Wind turbines A wind turbine assembly includes a wind turbine 18 mounted in a head 16, the wind turbine driving, via a gear box 22, an air compressor 24, 25, the inlet 26 of which is arranged to withdraw air from the vicinity of the blades of the turbine 18 to improve ... | 03/10/1987 |
| 4623299 | Driving arrangement for watercraft A driving arrangement for a watercraft includes a propeller and a freely pivoted guide wheel arranged subsequently to the propeller. The guide wheel which has a higher blade number and a smaller rotational speed than the propeller is provided with section... | 11/18/1986 |
| 4598632 | Air-driven ceiling fan An air-driven ceiling fan uses air from the duct work system of a home such as the central air-conditioning system to harness that air flow and drive a ceiling fan having a plurality of blades which are spaced from the ceiling and upon a common shaft in a... | 07/08/1986 |
| 4592202 | Thrust augmentor Thrust augmentation apparatus for a propulsive gas jet 11 including: an outer augmentor housing 15 and an inner augmentor housing 21 arranged coaxially with the jet 11. A minor air flow 25 is drawn into the inner passage 24 by an ejector effect, that flow... | 06/03/1986 |
| 4569630 | Axial piston machine having a control flow fluid line passing through a medial shaft portion In hydrostatic pumps, motors and transmissions; faces, which slide and seal along adjacent faces, commonly have recesses for hydrostatic lubrication or for control of flow through ports. The invention provides additional arrangements on such faces for the ... | 02/11/1986 |
| 4488399 | Propfan aircraft propulsion engine In a propfan engine, the need for an annular or chin-type intake when the propfan is mounted in front of the engine is avoided by mounting the propfan downstream of the engine. The engine exhaust is ducted to atmosphere through inner chutes which alternat... | 12/18/1984 |
