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| Number | Title | Issue Date |
| 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 |
| 7182578 | Ceramic spindle coupling structure A ceramic spindle coupling structure includes a metal bushing which has a housing space that has an inlet and a tapered fastening section of a smaller diameter than the inlet to form a tight coupling with a ceramic spindle without embossing the ceramic spindle and t... | 02/27/2007 |
| 7108483 | Composite gas turbine discs for increased performance and reduced cost A composite turbine disc includes a high nickel rim section and a steel bore section. The rim section is formed from a high nickel alloy which provides a higher melting point as compared to the material used for the bore section. A plating or forged welding enhanced... | 09/19/2006 |
| 6979177 | Rotor assembly A rotor assembly includes a housing and a hub. The housing has an open end and an opposed closed end, and is formed with a raised portion in the central location of the closed end. The hub is mounted on the closed end of the housing and covers the housing except for... | 12/27/2005 |
| 6976828 | Centrifugal wheel A centrifugal compressor wheel including a metal hub (2) for connecting to a drive shaft (3), an inlet plate (4) and an outlet plate (5) fixed to the metal hub (2), and a plurality of blades (7), each blade having a beginnin... | 12/20/2005 |
| 6817834 | Impeller for fluid transmitting system In an impeller for a fluid transmitting device, a cylindrical section is integrally formed at an inner peripheral edge of a shell and bent axially to extend through an inner periphery of a retainer plate, and a brazing material sump is provided between an outer peri... | 11/16/2004 |
| 6644923 | Fan for an alternator An electrical machine such as an alternator (10) has a first fan (12) and second fan (14) rotatably disposed within a first housing portion (16) and a second housing portion (18). The fans (12, 14) each comprise a continuous ring (54), a plurality of blad... | 11/11/2003 |
| 6506023 | Integrally formed stamping sheet-metal blades having 3D structure Integrally formed stamping sheet-metal blades having 3D structure for impeller or diffuser of a centrifugal pump or blower includes at least two integral forming blade or vane members. Each blade or vane member has a plurality of relatively short 3D blade... | 01/14/2003 |
| 6416287 | Impeller An impeller for a feed pump designed, in particular, as a side channel pump or as a peripheral pump has two disk parts connected fixedly in terms of rotation to one another. The disk parts can be manufactured in simply constructed molds, for example by th... | 07/09/2002 |
| 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 |
| 6360533 | Hydrodynamic converter with channel inserts A hydrodynamic converter coupling member for a torque converter has a simplified structure that can include plastic materials and permit a reduction in components with simplified assembly processes which may result in lighter components and reduced assemb... | 03/26/2002 |
| 6247897 | Vane system An improved vane system comprising of two or more vanes being part of a spherical section related to a hub characterized in that an operative concave surface of the vane being part of the spherical section. An operative convex surface of the vane being pa... | 06/19/2001 |
| 6176680 | Impeller having a hub assembled from a plurality of identical parts The invention concerns an impeller or a propeller for a rotary machine such as a pump, a turbine or a propulsion unit. The impeller comprises a hub (1) and an intermediate part put together by a number of identical hub sections (3) with mounted vanes (4). The ... | 01/23/2001 |
| 6106235 | Co-molded fan vane Co-molded fan vanes on a propeller. The vanes provide a soft, flexible material guard along the leading edge of each vane. This obviates the use of a propeller edge guard without concern for injury.... | 08/22/2000 |
| 6085417 | Method of repairing a steam turbine rotor A method for repairing the rim of a steam turbine rotor, and a weld material for repairing such rotors. The method generally includes the steps of removing a damaged rim and its associated dovetail region, so as to form a surface at the perimeter of the r... | 07/11/2000 |
| 6039536 | Connection between a rotor hub and a shaft of an electric motor of an electrically driven air pump An improvement in an electrical air pump having a housing with a pump mechanism at one end and an electric motor at the other end. The pump mechanism has at least one lightweight pump impeller made of plastic whose hub is press-fit on a shaft of the elect... | 03/21/2000 |
| 5893704 | Torque converter A torque converter for an automatic transmission includes a turbine having the vanes thereof retained by tabs which fit into fluid-tight recesses formed in the housing of the turbine.... | 04/13/1999 |
| 5800128 | Fan with individual flow segments connected to a hub with a prefabricated thermoplastic strip This fan is provided with an impeller (1), having a hub (2), and with a casing surrounding the impeller (1). The impeller (1) has individual flow segments (4) connected to the hub (2) and to one another and in each case enclosing a flow duct (5), and a sh... | 09/01/1998 |
| 5735672 | Centrifugal compressor impeller A slot welded impeller for a compressor is disclosed having a slotted cover and a hub with a plurality of extending vanes. The cover and hub are oriented such that the vanes are disposed against the opposite side of the cover from the grooves, and the cov... | 04/07/1998 |
| 5655884 | Flexible impeller with overmolded hub A fan for a vacuum cleaner has a fan housing, motor and impeller. The fan housing has an inlet and outlet. The impeller has a overmolded hub and multiple flexible blades. This flexible blade fan provides better air performance, less noise, better durabili... | 08/12/1997 |
| 5246343 | Fan assemblies and method of making same A low cost assembly and method for assembly of a fan having a hub, a spider with arms and blades attached to the arms is provided. The spider is arc welded to the hub and the blades are projection welded to the arms. The blades have a root, a tip, and an ... | 09/21/1993 |
| 5228836 | Runner for a pump The runner for pumping hot reactor liquids includes a runner body which is connected with a shaft portion which transmits a driving torque. An annular insert is disposed between a bearing sleeve projecting from the runner body and the drive shaft portion ... | 07/20/1993 |
| 5145318 | Flange-mounted controllable pitch marine propeller A controllable pitch marine propeller includes a hub body having a forward section provided with holes for bolts and locating and torque pins and a frontal surface that mates with a hub flange and an internal flange that defines an annular cavity and rece... | 09/08/1992 |
| 4958987 | Materials handling fan impeller An impeller for a materials handling fan can be made in several different diameters utilizing a single central hub of fixed diameter. The single central hub is designed to withstand the varying stresses imposed by different impeller diameters. A circular ... | 09/25/1990 |
| 4868365 | Method for welding torque converter blades to a housing using a laser welding beam A method for welding torque converter blades to an impeller housing by laser beam welding includes forming the blades with a tab fitted within a recess formed in the impeller housing such that the blade tab stands clear of the adjacent surfaces of the hou... | 09/19/1989 |
| 4799861 | Pump Pump having an impeller with accurately formed radial passages and the method for making it.... | 01/24/1989 |
| 4759690 | Impeller A vane-type impeller having a plurality of abuttably-adjacent, interconnected components at least some of which are made of an abrasion-resistant ceramic material is improved by a layer of a resiliently-flexible material between at least each component ma... | 07/26/1988 |
| 4738594 | Blades for axial fans A fan blade in which a leading edge piece made of a hard sintered product is attached to the leading edge of a fan blade main body over along substantially 3/4 to 1/4 from the tip thereof so that a useful life of the fan blade is prolonged.... | 04/19/1988 |
| 4563801 | Method of reinforcing the edges of impeller vanes or the like The inlet and/or outlet edge of a blank which is to be converted into the vane of an impeller for use in a centrifugal pump is reinforced by providing an exposed surface of the blank with a pair of contiguous recesses which extend along the edge and the d... | 01/14/1986 |
| 4509238 | Method for fabricating a steam turbine diaphragm Blades in the steam path of a steam turbine diaphragm are assembled into slots in full circular bands and are structurally bonded thereto by welding. After stress relief, the bands are each separated into two 180 degree pieces by line cuts which pass betw... | 04/09/1985 |
| 4508495 | Rotary shaft for compressor A rotary shaft for compressor includes a cylindrical shaft body and a cylindrical eccentric member. The shaft body is rotatably arranged in an outer box of the compressor and is connected to an electric motor at one end portion thereof. The eccentric memb... | 04/02/1985 |
| 4483660 | Submersible pump impeller locking method A method of installing the diffusers and impellers on a shaft of a centrifugal pump uses a latent locking member. The locking member is positioned within a counterbore of each impeller when the impellers are placed on the shaft between each diffuser. Afte... | 11/20/1984 |
| 4474536 | Wind turbine blade joint assembly and method of making wind turbine blades Hollow wind turbine blades and the like comprising abutting blade sections, with nose forming strips and converging walls forming a tail section connecting with the ends of the nose forming strips, and a method of fabricating them comprising machining the... | 10/02/1984 |
| 4295789 | Cover plates for tank heads The axial flow fan includes a hub, an annular rim, at least one structural disc welded to and extending between the hub and the rim and a plurality of blades extending outward from the rim. The improvement comprises at least one nonstructural cover plate ... | 10/20/1981 |
| 4161056 | Method and device for repairing damaged screw propellers Damaged screw propellers are repaired by use of hollow, thin-walled envelopes, each envelope having surfaces corresponding in configuration to an outer portion of a screw propeller blade. Each envelope is located on a blade, and a workable material is int... | 07/17/1979 |
| 4086690 | Method and apparatus for producing a rotor welded together from discs A method for producing a rotor made from discs joined together in succession in side-by-side relation by welding comprises the steps of assembling each rotor disc and the succeeding disc next to be joined such that their axes are in horizontal alignment, ... | 05/02/1978 |
| 4058880 | Propeller making apparatus and method Apparatus and method for making propellers having a base plate with an upstanding central shaft for receiving a blank propeller hub. A plurality of blocks are radially arranged on the plate about the central shaft, and each block has an upwardly projectin... | 11/22/1977 |
| 4043498 | Method of plastic flow diffusion bonding The present invention relates to a method for diffusion bonding metallic detail parts to form a structural component. This invention presents an efficient low cost method of establishing and maintaining the required intimate surface contact for solid stat... | 08/23/1977 |
| 4040769 | Fan wheel A fan wheel in which the blades and hub assembly are fabricated from pieces of plate welded together along extended surfaces.... | 08/09/1977 |
| 3969805 | Method of constructing an axial flow fan A vane axial flow fan is shown having a shroud construction which provides greater than normal rigidity in the areas co-extensive with the stator vanes and fan wheel blades. Further, a novel method of constructing an axial flow fan is disclosed wherein th... | 07/20/1976 |
