Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8061993 | Vertical axis turbine A vertical axis turbine and method of making same is disclosed. The device and method comprise a plurality of blades rotatably disposed around an axis of rotation at a plurality of blade locations, each blade being twisted at a first angle about its longitudinal axi... | 11/22/2011 |
| 7806661 | Propeller A propeller attached to an output shaft of a boat motor is provided. The propeller may have a plurality of blades which define a leading edge. The leading edge may define leading edge angles which increase in a logarithmic manner from a base of the blade to a tip of... | 10/05/2010 |
| 7443671 | Axial duct cooling fan A cooling fan comprising a housing that connects to a chassis that is operable to support an electronic component. An axial duct runs through the housing. A blade assembly is rotatably disposed within the duct and comprises a plurality of fan blades that extend radi... | 10/28/2008 |
| 7276809 | Wind turbine assembly and related method Wind turbine assembly, and related method, is provided that exploits an aerodynamically enhanced wind region of a building in proximity to a parapet of the building. A wind turbine assembly includes a support assembly configured to couple to a building in proximity ... | 10/02/2007 |
| 7220105 | Ornamental wind turbine apparatus This three dimensional ornament is designed to be suspended in outdoor situations where it is free to rotate in the wind and thereby enhance the aesthetic qualities of the area in which it is deployed and to make the wind velocity visible. The ornament is a turbine ... | 05/22/2007 |
| 7215036 | Current power generator A current power generator includes a vertical support member mounted to the seabed and horizontal support members mounted to the vertical support member. Generators are mounted between the horizontal support members. A rotatable shaft is operatively connected to eac... | 05/08/2007 |
| 7207767 | Inducer, and inducer-equipped pump The present invention is concerned with an axial-flow or mixed-flow inducer (3) which is disposed upstream of a main impeller (2) for improving the suction capability of a pump such as a turbopump. In the inducer (3), a blade angle (βbt | 04/24/2007 |
| 7084520 | Wind turbine system Wind turbine system, and related method, is provided that exploits an aerodynamically enhanced wind zone of a structure by aligning a wind turbine generator, and preferably a plurality thereof, along a wall thereof. Each generator includes a structural support, a wi... | 08/01/2006 |
| 7077072 | Unmanned underwater vehicle turbine powered charging system and method A charging system for an unmanned underwater vehicle (UUV) is disposed within a submerged docking station. The charging system includes a battery, one or more generators, and a charge controller. The battery supplies electrical power to an electrical distribution bu... | 07/18/2006 |
| 7052230 | Pump assembly A pump assembly including a pump, a pump frame and a motor, the pump including a pumping member which is mounted in a pump housing, relative rotation of the pumping member with respect to the pump housing causing pumping of fluid, and the motor including a rotor and... | 05/30/2006 |
| 7044713 | Wind power generator with multiple rotary wings A wind power generating apparatus having a plurality of rotary wings can reduce the load and resistance on the rotary wings due to wind to obtain a highly effective rotation power as well as to flexibly absorb the impact applied to the rotary wings due to varying wi... | 05/16/2006 |
| 6935841 | Fan assembly A fan assembly includes a vertical axis wind turbine (VAWT) which is coupled to an air extraction or air supply fan. The VAWT is located above and is coupled coaxially to the fan. The fan assembly also includes an auxiliary turbine to provide start-up torque to init... | 08/30/2005 |
| 6881026 | Screw compressors with rotor and casing design for controlling deflections A screw compressor includes a housing and a screw rotor disposed in the housing and rotatable relative to the housing for compressing a refrigerant, the housing and the screw rotor having a rest condition, and an operating condition wherein at least one of the housi... | 04/19/2005 |
| 6612804 | Swirling compressor A swirling compressor comprises a number of swirling tubes and a motor, each swirling tube has a fixture at a center portion with a flange bulging out from one side and a hole at the other end of the center portion opposing the flange, an aperture is form... | 09/02/2003 |
| 6592335 | Ribbon drive pumping apparatus and method The ribbon drive pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of... | 07/15/2003 |
| 6551054 | Method and apparatus for pumping a material and a rotor for use in connection therewith A method and apparatus is disclosed for pumping a material, especially thick, gas-containing, fiber suspensions for wood processing. The apparatus includes a centrifugal pump with a rotor having blades twisted such that the pitch of the blade changes alon... | 04/22/2003 |
| 6527520 | Ribbon drive pumping with centrifugal contaminant removal A ribbon drive pumping apparatus and method for liquids is disclosed wherein the inherent centrifugal separation that occurs adjacent the pump inlet is used to remove contaminants. The pump has an extended tube having an intake at a first end and an outle... | 03/04/2003 |
| 6514035 | Multiple-type pump A multiple-type pump has a simple construction and superior durability. The multiple-type pump has the capacity to perform air evacuation at high velocities in the atomospheric pressure zone to high vacuum zone range. The multiple-type pump includes: a sc... | 02/04/2003 |
| 6439834 | Oil field tool The oil field tool motor is particularly suited for use in the oil well shaft environment wherein the temperature within the shaft can climb to nearly 400° F. and wherein the temperature within the motor can drop to nearly -400° F. when liquid nitrogen ... | 08/27/2002 |
| 6435829 | High suction performance and low cost inducer design blade geometry An inducer having a hub and a plurality of blades is provided. In one embodiment, the thickness of the blades is defined such that during the operation of the inducer each of the blades is positioned underneath a cavitation vapor line so as to improve the... | 08/20/2002 |
| 6428275 | Helical wind rotor and a method for manufacturing the same Helical wind rotor, comprising at least two blades (1) which, as observed in cross section, are of substantially equivalent shape and curved, and are located parallel with the rotational axis (o) and so that the blades (1) are arranged most suitably at eq... | 08/06/2002 |
| 6390768 | Pump impeller and related components A pump impeller and related components for pumping water, sewage or other pumped material from one location to another is disclosed. The pump impeller includes a core member having a back face, a front face, and a central bore extending therebetween. A fi... | 05/21/2002 |
| 6367247 | Air engine Apparatus for supplying high pressure gas to an engine, to operate the engine, including in combination a gas pressurizer having a low gas pressure inlet to receive inlet gas, as for example discharge gas from the engine, and a high gas pressure outlet to... | 04/09/2002 |
| 6357998 | Ribbon drive pumping apparatus and method A ribbon drive pumping apparatus and method for liquids is disclosed. The pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of th... | 03/19/2002 |
| 6343909 | Centrifugal pump A centrifugal pump with an impeller which has a single helically-formed blade and which is not sensitive to sand abrasion or seizing of the impeller is achieved by providing the impeller (1) with a shielding plate (3) arranged on the suction side which tr... | 02/05/2002 |
| 6132172 | Windmill An improved windmill includes a conical rotor unit, a frame for supporting the conical rotor unit and a base for supporting the frame. The conical rotor unit has a conical rotor with a plurality of spaced curved blades disposed thereon and a plurality of ... | 10/17/2000 |
| 6126386 | Pump and medium circulation apparatus A pump has a rotor made of synthetic resin in a fixed housing which are adjacently arranged while forming a gap between the housing and the rotor to force-feed a medium containing water moisture, in which the rotor is made of a resol-type synthetic resin ... | 10/03/2000 |
| 6053700 | Ducted turbine A turbine 400 has a central duct 410 which accelerates fluid passing through it and a blade configuration which retards the flow of fluid near the tips of the turbine. This structure results in a vortex having a higher fluid pressure behind the tips of th... | 04/25/2000 |
| 6036443 | Helical turbine assembly operable under multidirectional gas and water flow for power and propulsion systems A helical turbine assembly capable of providing high speed unidirectional rotation under a multidirectional ultra low-head fluid flow is disclosed. The assembly comprises an array of helical turbine units or modules arranged, vertically or horizontally, t... | 03/14/2000 |
| 5810289 | High velocity propeller A propeller for fluid propulsion comprises a pair of substantially rigid blades which rotate about their longest dimension in opposite directions, the blades each being oppositely helically twisted along the longest blade dimension and positioned together... | 09/22/1998 |
| 5642984 | Helical turbine assembly operable under multidirectional fluid flow for power and propulsion systems A helical turbine assembly capable of providing high speed unidirectional rotation under a multidirectional ultra low-head fluid flow is disclosed. The assembly comprises an array of helical turbine units or modules arranged, vertically or horizontally, t... | 07/01/1997 |
| 5527159 | Rotary blood pump A rotary blood pump includes a pump housing for receiving a flow straightener, a rotor mounted on rotor bearings and having an inducer portion and an impeller portion, and a diffuser. The entrance angle, outlet angle, axial and radial clearances of blades... | 06/18/1996 |
| 5425617 | Constant static pressure runner in an axial flow turbine A rotor is provided wherein an rotor core and a jacket cooperate to provide a continuous variation of area left for fluid transit. This continuous variation of area left for fluid transit produces a continuous axial acceleration of fluid and provides a fi... | 06/20/1995 |
| 5411422 | Spiral propeller having axial void A propeller is presented which comprises a one piece blade that spirals out from an angular solid hub portion in smooth transition as a continuous screw spiral (or helix). Throughout its length, the spiral screw portion has an open center, (i.e., axial vo... | 05/02/1995 |
| 5137417 | Wind energy conversion system A wind energy conversion system includes specially shaped blades mounted in a specific location on a specially shaped blade-supporting body to maximize energy conversion from wind energy to electrical energy. The blade-supporting body includes a concave s... | 08/11/1992 |
| 5102294 | Screw pump A screw pump for feeding highly viscous material such as mixed concrete and the like. Plural projections engage the helical screw of the screw pumps to facilitating removal of the material such as gravel caught in the screw pump. Further for preventing ex... | 04/07/1992 |
| 4850798 | Modified helicoidal wind responsive device A wind actuated device which has a sail in the shape of a double or single modified helicoid. The device may be provided as a decorative novelty device or may be supported on a mast as a wind indicating device.... | 07/25/1989 |
| 4792282 | Liquid pump A liquid pump having a rotary impeller of improved construction to eliminate the cavitation in the pump housing. Motor noises are muffled because the exhaust port of the pump is on the heel of the skimmer plate of the pump which is slightly below the wate... | 12/20/1988 |
| 4734067 | Hydro-rotor A hydro-rotor for providing propulsion or generating electricity in a device positioned in water. A hollow tank having a forward and aft tapered end in the preferred embodiment is mounted about a longitudinal axis to a pair of stabilizer plates. A helical... | 03/29/1988 |
| 4722665 | Turbine A water turbine has a series of spaced blades attached to and extending around the periphery of a body portion, preferably of conical or similar shape; each of the blades has a leading end mounted at a mid region of the body e.g. halfway along it and each... | 02/02/1988 |
