Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 8186958 | Fan A fan includes a main plate and at least one or more blades connected to the main plate. At least a portion of a boundary portion between the main plate and a pressure surface of the blade is provided as a curved boundary portion such that the blade and the main pla... | 05/29/2012 |
| 8109731 | Radial fan impeller A radial fan impeller has the following features: a plurality of blades distributed around the periphery; viewed in the radial direction, the blades extend from an inner inlet region to an outer discharge region; the blades extend axially, viewed in the direction of... | 02/07/2012 |
| 8007240 | Impeller of centrifugal fan and centrifugal fan disposed with the impeller An impeller of a centrifugal fan includes an end plate, a plurality of blades and an end ring. The blades include blade bodies that are annularly disposed around a shaft and fixed to the end plate. The blades further include blade covers that are attached to the bla... | 08/30/2011 |
| 7909577 | System and method for pulverizing and extracting moisture A venturi receives incoming material through an inlet tube and subjects the material to pulverization. The material, as it undergoes pulverization, is further subject to moisture extraction and drying. An airflow generator, coupled to the venturi, generates a high s... | 03/22/2011 |
| 7794206 | Radial fan impeller The invention relates to a radial fan impeller (1), in particular for using in gas fans with a steep fan characteristic curve, with the following features: with a plurality of blades (2) distributed around the periphery; viewed in the rad... | 09/14/2010 |
| 7762778 | Fan impeller A fan impeller having fan blades, a base plate, a support ring and fasteners to releasably hold the fan blades between the base plate and the support ring. The base a plate includes channels each having two or more sockets that receive and releasably seat at least a... | 07/27/2010 |
| 7736129 | Cooling fan for rotating machine A cooling fan for rotating machine having a sufficient cooling performance, mass production performance and easiness in mounting is provided. A centrifugal fan mounted to a rotating shaft 21 of rotating machine for introducing a cooling air to the rotating ma... | 06/15/2010 |
| 7736128 | Stress relief grooves for Francis turbine runner blades There is disclosed a runner for a Francis-type hydraulic turbine where each runner blade has an outlet edge with two stress relieving grooves cut through the blade from the outlet edge adjacent the crown and the band. The grooves each present an opening across the o... | 06/15/2010 |
| 7670115 | Turbo fan A turbo fan includes a plurality of blades positioned vertically in a radial direction between a main plate and a shroud. Each of the plurality of blades is formed with a slope at an outer periphery thereof to suppress generation of turbulence. ... | 03/02/2010 |
| 7632073 | Impeller with machining access panel An impeller assembly is for a fluid machine, such as a compressor, and includes a first, main body and a second body. The main body includes a first section providing at least a substantial portion of either an impeller disc or an impeller cover and a second section... | 12/15/2009 |
| 7628586 | Impeller An impeller including a plurality of longitudinally-extending blades, each having a first edge and a second edge, a cover member with an inlet orifice and extending along at least a portion of the first edge of each of the plurality of blades, and a hub member exten... | 12/08/2009 |
| 7614851 | Centrifugal fans and impellers thereof A centrifugal fan is provided. A hub covers a driving device. An impeller surrounds the hub and includes a first blade set and a second blade set. The first blade set surrounds the hub and includes a first combining portion, a second combining portion, and a plurali... | 11/10/2009 |
| 7500830 | System and method for pulverizing and extracting moisture A venturi receives incoming material through an inlet tube and subjects the material to pulverization. The material, as it undergoes pulverization, is further subject to moisture extraction and drying. An airflow generator, coupled to the venturi, generates a high s... | 03/10/2009 |
| 7470112 | Split francis turbine runner A split runner for a Francis turbine has runner segments that are adapted to be joined together along confronting surface portions thereof to form a composite runner having a crown, a band and a plurality of blades extending between the crown and the band. The confr... | 12/30/2008 |
| 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 |
| 7351031 | Centrifugal blower A centrifugal blower includes a housing, an impeller, and a guiding cover. The housing includes a compartment delimited by an annular wall. A radial air inlet is defined in the annular wall and communicated with the compartment. The compartment includes an axial ope... | 04/01/2008 |
| 7347252 | Centrifugal impeller An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.... | 03/25/2008 |
| 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 |
| 7318703 | Impeller for a pump An impeller for a pump, particularly for a cooling water pump of an internal combustion engine, includes a hub (11), a cover disc (14) which is disposed on the intake side and is provided with a central opening (15) for sucking in a conveyed med... | 01/15/2008 |
| 7281898 | Blowing apparatus for refrigerators Disclosed herein is a blowing apparatus for refrigerators. The blowing apparatus includes a centrifugal fan. The centrifugal fan comprises a hub plate connected to a shaft of the motor, a plurality of blades attached to the hub plate in the radial direction of the h... | 10/16/2007 |
| 7273352 | Inlet partial blades for structural integrity and performance Methods and apparatus for conveying fluids (e.g., liquids, gases, and mixtures thereof) are disclosed. A turbopump in accordance with an exemplary implementation of the present invention comprises an impeller defining at least one flow channel and a shroud defining ... | 09/25/2007 |
| 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 |
| 7246997 | Integrated high efficiency blower apparatus for HVAC systems An integrated centrifugal blower wheel for a heating, ventilation and air conditioning (HVAC) blower unit includes a first blade support, a second blade support, and a plurality of S-shaped blades disposed between the first and second blade supports, wherein each of... | 07/24/2007 |
| 7247001 | Impeller An impeller (1) according to the present invention has a disk-like main plate (10), a blade (20) joined to the main plate, and a side plate (30) having a suction port. A boss hole (12) is formed in a central portion of the main pla... | 07/24/2007 |
| 7244099 | Multi-vane centrifugal fan A multi-vane centrifugal fan has a fan housing and an impeller. The impeller includes a plurality of vanes arranged with a prescribed spacing in the circumferential direction and fixed to a hub rotatably driven around a shaft core. The impeller further includes an a... | 07/17/2007 |
| 7241114 | Rotor for a centrifugal pump The invention relates to a rotor having at least three blades disposed between a front cover plate and a rear cover plate, the art of the suction edge of at least one blade, in the top view of the inlet side of the pumping medium, following a sinusoidal path with a ... | 07/10/2007 |
| 7220106 | Francis wheel and hydraulic machine comprising one such wheel A Francis runner that includes a crown, a band and blades which extend between the crown and the band. An angle (β24) between a linear speed (U, D224) of one of the blades and a median of the blade at the trailing edge, has a value between 20 ... | 05/22/2007 |
| 7214033 | Blower fan A blower fan includes a shroud, a hub for guiding airflow being discharged, and a plurality of blades disposed between the shroud and the hub. A first outer diameter of a first portion, which is close to the hub, of the blade is different from a second outer diamete... | 05/08/2007 |
| 7210904 | Runner blade for low specific speed Francis turbine A runner for use as retrofit in existing Francis turbine water path includes a set of nine profiles covering crown (hub) to skirt (band) area is to produce power efficently at deteriorated head condition of site. Each of the nine profiles is made of two curves, name... | 05/01/2007 |
| 7210908 | Hydraulic machine rotor Rotor blades of a hydraulic machine rotor are shaped such that the inlet edge and outlet edge of two adjacent rotor blades have varying profiles in different sections. ... | 05/01/2007 |
| 7207779 | Impeller for radial-flow heat dissipating fan An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. The impeller includes an air inlet side and a b... | 04/24/2007 |
| 7198860 | Ceramic tile insulation for gas turbine component Ceramic tile (32) insulation for protecting a substrate material (34) in a high temperature environment. A plurality of ceramic tiles (78) may be used in combination with a monolithic layer of ceramic insulation (80) to protect a fillet r... | 04/03/2007 |
| 7198470 | Francis turbine A Francis turbine with an improved shape of blades, which can reduce cavitations generated on the surface of the blades or reduce the secondary flow around the blades, is provided. A Francis turbine comprises a rotating shaft, a crown, a plurality of blades, and a b... | 04/03/2007 |
| 7195451 | Radial out-flowing rotary ram-in compressor A radial out-flowing rotary ram-in compressor for use in gas turbine engines and the like, having a plurality of vanes attached to discs, with the opposing parts of each two adjacent vanes defining a feeding channel in-between. In operation, working gases are rammed... | 03/27/2007 |
| 7195460 | Francis turbine A Francis runner and a hydraulic turbine equipped with such a runner, wherein the runner includes a ceiling, a belt, and blades which extend between the ceiling and the belt and which define liquid flow channels therebetween. A ratio (e/L) of a maximum thickness Ce)... | 03/27/2007 |
| 7195459 | Francis turbine A Francis turbine with an improved shape of blades, which can reduce a circumferential velocity component generated in the flow downstream of the blades in a condition of a partial load operation, or reduce the secondary flow around the blades, is provided. A Franci... | 03/27/2007 |
| 7192272 | Convection oven with laminar airflow and method A convection oven with laminar airflow and/or moisture injection. A radial airflow fan is used to provide a circulating airflow that is substantially even and substantially turbulence free. The circulating airflow is provided to an oven chamber via a plurality of eg... | 03/20/2007 |
| 7189062 | Centrifugal impeller A centrifugal impeller particularly for a turbo-charger includes a circular disc member, a boss portion formed at a central portion of the disc member and having a central through hole into which a rotational shaft is inserted, an impeller blade integrally formed on... | 03/13/2007 |
| 7182572 | Impeller assembly An impeller assembly has a hollow body, multiple main blades and multiple booster blades. The main blades are mounted around the body to define multiple flow channels between the main blades. The boosting blades are mounted around the body at the bottom edge and eac... | 02/27/2007 |
