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Class 29/889 - Impeller making


Subclass of Class 29 - Metal working
Definition: Process of manufacturing a device including a rotor (e.g.,
No. of patents: 142
Last issue date: 07/13/2010


1        
NumberTitleIssue Date
7752755Methods and apparatus for manufacturing components
A method for manufacturing a turbine nozzle assembly using a fixture including a biasing mechanism. The method includes moving the biasing mechanism from a biased first position to a second position using at least one of hydraulic, pneumatic, and electrical power, p...
07/13/2010
7594323Methods for designing single-lobe and double-lobe rotors
The present invention provides methods for designing single-lobe or double-lobe rotors which enable a defined rotor and a conjugate rotor intermeshing and conjugating to each other and by parameterized sets to generate curve portions of half two lobes of the defined...
09/29/2009
7565742Methods for designing lobe-type rotors
The present invention provides a method for designing lobe-type rotors which enables a defined rotor and a conjugate rotor with three or more than three lobes intermeshing and conjugating to each other; by setting suitable parameters to generate a curve portion of a...
07/28/2009
7565741Methods for designing lobe-type rotors
The present invention provides a method for designing lobe-type rotors which enables a defined rotor and a conjugate rotor having three or more than three lobes intermeshing and conjugating to each other and by setting suitable parameters to generate curve portions ...
07/28/2009
7562450Methods for designing single-lobe rotors
The present invention provides a method for designing single-lobe rotors of the present invention includes: curve portions of the of a curve E, an arc A, an arc B, an arc F, an arc C, an arc H, a straight line Y, and an arc G, wherein a center of the arc H located i...
07/21/2009
7416372Toolholder
A toolholder (50) with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle (42a) for retaining the toolholder in a tool rest (42) of a machine tool. The machine tool (10) inclu...
08/26/2008
7407715Method of brazing and article made therefrom
A method of brazing stainless steel components to form a complex shape such as an impeller. The method includes the steps of providing the stainless steel components shaped and formed from a selected stainless steel alloy; providing a brazing alloy having a selected...
08/05/2008
7396210Quick install blade arms for ceiling fans
Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat...
07/08/2008
7353603Method for mounting rotor blades to a rotor hub of a wind power installation
A method of mounting rotor blades to a rotor hub which is connected to a pod of a wind power installation, includes the following steps: rotating the rotor hub into a predetermined first position, fitting a rotor blade, rotating the rotor hub by means of the rotor b...
04/08/2008
7320175Production process of gas turbine
The invention provides a production process of a gas turbine capable of being applied to various cycles. A principal part of a gas turbine is set in advance based on roughly set conditions, and the number of stages of a compressor and the number of stages of a turbi...
01/22/2008
7310965Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger...
12/25/2007
7308813Clutch housing and method for manufacturing the same
A method of manufacturing a clutch housing having a boss portion and a drum portion integrally provided with the boss portion, is characterized by steps of integrally forming the boss portion and the drum portion by hot forging, and forced-cooling at least a portion...
12/18/2007
7305762Method for production of a rotor of a centrifugal compressor
An improved method for production of a rotor (10) of a centrifugal compressor, wherein the rotor (10) is produced from a monolithic disc; this disc is worked in a radial direction by at least one tool (20) of a numerical control machine, such as...
12/11/2007
7270512Stacked steampath and grooved bucket wheels for steam turbines
The steampath for a steam turbine includes stacked stator rings each mounting inwardly directed nozzles and stacked rotor wheels each mounting outwardly directed buckets mounting blades. By alternately stacking the stator rings and rotor wheels, the nozzles and buck...
09/18/2007
7195144Method for production of a component
On production of a component, two primary pieces must often be fixed together to give one piece. In order to achieve the above, it is important that the two primary pieces are oriented in a particular manner during the fixing process, which provides some difficultie...
03/27/2007
7186070Method for modifying gas turbine nozzle area
A method of modifying a turbine nozzle area comprises depositing a thermal barrier coating (TBC) on the nozzle endwalls to provide a minimum nozzle area, evaluating an airflow through the nozzle, and machining the TBC to increase the nozzle area. Adjacent segment ar...
03/06/2007
7159412Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger...
01/09/2007
7144361Continuous flow type centrifuge having rotor body and core body disposed therein
A continuous flow type centrifuge to which a liquid sample is continuous supplied. The centrifuge includes a rotor rotatably supported by a main housing and drivingly rotated by a motor. The rotor includes a cylindrical rotor body, a hollow cylindrical core body, an...
12/05/2006
7140952Oxidation protected blade and method of manufacturing
The surface of a gas turbine blade is machined with a material-removing tool and simultaneously, an anti-oxidation coating is deposited on the surface using eletrospark deposition. ...
11/28/2006
7137198Cover attachment method
A rotor cover attach and release apparatus for a centrifuge includes a knob and a cover and housing affixed to the knob. The apparatus also includes an adapter connected to the housing and a plunger including an annular groove disposed within the knob and housing. T...
11/21/2006
7121716Mixing equipment sealing device
A shaft sealing arrangement for sealing bores around a pair of stirrer shafts that emerge through a wall of an associated mixing vessel includes a pair of generally cylindrical shaft sealing assemblies designed to be carried on adjacent stirrer shafts, each gland as...
10/17/2006
7121793Undercut flange turbine nozzle
A turbine nozzle includes a vane joined to opposite inner and outer bands. The inner band includes a pocket adjoining a flange which recesses in part the inner surface of the band. The pocket undercuts the flange to form a notch at the base thereof. ...
10/17/2006
7117595Method for manufacturing a conveying element of an axial type flow meter used for drink vendors
A device is described for measuring a fluid, to be used advantageously in mixing devices for ingredients of liquid drinks. The device comprises an impeller, a diffuser upstream from the impeller and detecting means for the impeller (46). The diffuser (41
10/10/2006
7114255Method of making a gas turbine engine diffuser
A method of machining a plurality of intersecting bores in an object, the method comprising steps of machining a first bore, plugging the first bore, machining a second bore so as to intersect the first bore, and unplugging the first bore. ...
10/03/2006
7073346Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger...
07/11/2006
7069654Rotor balancing
A method of balancing a rotor (10), the said method comprising the steps of determining the position of the center of mass of a rotor (10) to be balanced prior to the rotor (10) being machined to its final dimensions, and machining the rotor (
07/04/2006
7056095Impeller and method using solid free form fabrication
The present invention relates to the use of solid freeform fabrication (SFF) technology in the manufacture of impeller blades. The impeller blades may be metal plated and further incorporated onto a rigid skeletal frame to allow for more desirable wear resistance an...
06/06/2006
7057326Rotor body containment shell with reduced windage losses
A rotor body assembly includes a rotor and a containment shell surrounding the rotor, the containment shell having an external peripheral surface provided with a plurality of surface deformations. ...
06/06/2006
7040845Screw compressor and method of manufacturing rotors thereof
A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetwee...
05/09/2006
7007382Slot machining
A method for cutting a blade root retention slot in a turbine engine disk element includes forming a precursor slot in the element. The precursor slot has first and second sidewalls and a base. A rotating bit is passed through the precursor slot to machine the base....
03/07/2006
6996906Method of repairing a turbine blade and blade repaired thereby
A method of repairing a turbine blade and the blade repaired thereby. The blade comprises a platform that has become bowed as a result of high temperature creep, with the result that the platform has a concave surface and an oppositely-disposed convex surface. The m...
02/14/2006
6994000Fixture and locator device for supporting a rotatable member
There is provided a locator device and an associated fixture and method for supporting a rotatable member. The locator device has a base and a plurality of flanges extending from the base in an axial direction and arranged circumferentially to define an aperture for...
02/07/2006
6986644Hard material impeller and methods and apparatus for construction
Methods of producing impeller castings from very hard materials are disclosed in which the formation of a selectively configured core produces an impeller casting that does not need to be machined to receive the drive shaft and eliminates the need for employing a le...
01/17/2006
6935021Method for the plastic molding of the hub recess for fast running turbine component
A method for plastic molding of a hub recess for a fast-running turbine component is provided. The plastic molding of the hub recess occurs by hydraulic expansion, by way of a hydraulic fluid introduced into the hub recess of the turbine component under high pressur...
08/30/2005
6912782Forming and assembly method for multi-axial pivoting combustor liner in gas turbine engine
A multi-axial pivoting liner within the combustion system of a turbine engine allows the system to work with minimum thermal interference, especially during system operation at transient conditions, by allowing the liner to pivot and slide about its centerline and r...
07/05/2005
6910270Process for preparing rhomboidal blades for axial turbo engines
A rhomboidal blade includes a blade footing (2) of rhomboidal cross section and a blade body (1) for axial turbo engines is worked out from a solid blank (3) by machining. The blank (3) is cut off as a bar from a hot-rolled, bar-shaped in...
06/28/2005
6892931Methods for replacing portions of turbine shroud supports
A method facilitates replacing a portion of a gas turbine engine turbine support. The turbine support includes a body including a forward leg, an aft leg, and a mounting flange that each extend radially outwardly from the body. The forward leg is axially upstream fr...
05/17/2005
6807734Microelectronic contact structures, and methods of making same
Microelectronic contact structures are fabricated by separately forming, then joining together, various components thereof. Each contact structure has three components: a “post” component, a “beam” component, and a “tip” component. The resulting contact ...
10/26/2004
6796770Impeller and method using solid free form fabrication
The present invention relates to the use of solid free form fabrication (SFF) technology in the manufacture of impeller blades. The impeller blades may be metal plated and further incorporated onto a rigid skeletal frame to allow for more desirable wear resistance a...
09/28/2004
6760971Method of making a gas turbine engine diffuser
A method of machining a plurality of circumferentially spaced bores in an object, each of the bores extending generally tangentially and inwardly and being positioned in the object so as to generally asymmetrically intersect two adjacent bores, comprises the steps o...
07/13/2004
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