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| Number | Title | Issue Date |
| 8079144 | Method of manufacture, remanufacture, or repair of a compressor A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. One or m... | 12/20/2011 |
| 8024859 | Oil pump anti-wear plate for transfer case and method of use A replacement oil pump plate for attachment to an original equipment manufacture oil pump within a transfer case for elimination of mechanical wear by replacing the abrasive aluminum tabs formed on the oil pump with low-friction plastic tabs is disclosed. The presen... | 09/27/2011 |
| 7836591 | Method for forming turbine seal by cold spray process A method of forming an interstage seal including removing a diaphragm seal box (14) from a gas turbine compressor assembly (10) and removing a labyrinth sealing member (12) from the diaphragm seal box (14). An abradable material layer ( | 11/23/2010 |
| 7797828 | Adaptive machining and weld repair process The present invention provides an apparatus and method for an adaptive machining and weld repair process useful for repairing airfoils, particularly damage to an airfoil leading edge and tip. The process first machines away damaged portions of the airfoil. Next, the... | 09/21/2010 |
| 7743497 | Method of providing non-uniform stator vane spacing in a compressor Stator blade counts of an upper compressor casing for adjacent stages S0 and S1 are changed in the field to provide additional stator vanes and hence an increased vane count. Particularly, the upper casing half of the compressor is removed from the low... | 06/29/2010 |
| 7472478 | Adaptive machining and weld repair process An apparatus and method are provided for an adaptive machining and weld repair process for repairing airfoils, damage to an airfoil leading edge and tip. First, damaged material is machined away from a damaged airfoil edge so as to expose a weld surface. New materia... | 01/06/2009 |
| 7367122 | Stepped sleeve repair of knife seal bores in driven compressor housing A method is provided for repairing a driven compressor housing including a bore having an inner surface configured to engage a shaft-mounted knife seal. The method includes the steps of removing material from the bore inner surface, press-fitting a sleeve into the b... | 05/06/2008 |
| 7367488 | Method of repair of thin wall housings The present invention provides methods and materials for use in repairing a worn component having thin walls. One kind of thin wall may be the wall of a cylindrical portion of the component where such wall has a worn inner surface and an opposite outer surface. The ... | 05/06/2008 |
| 7322805 | Impeller adjustment device and method for doing the same for close coupled pumps A method and apparatus are provided for adjusting an impeller in a motor and impeller assembly of a pumping device. The method features steps of: tightening mounting bolts so as to move the motor and impeller assembly of the pumping device forward until the impeller... | 01/29/2008 |
| 7318275 | Method of remanufacturing a compressor A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. One or m... | 01/15/2008 |
| 7185431 | Method of manufacturing a linear compressor A method of manufacturing a linear compressor includes measures to account for possible variations in manufacture of the spring connecting between a cylinder part and a piston part. In the method, the piston is located at a predetermined axial position in the bore o... | 03/06/2007 |
| 7156624 | Compressor sound suppression A compressor has a housing. One or more working elements cooperate with the housing to define a compression path between suction and discharge locations. An intermediate port is located along the compression path. A branch path extends to the intermediate port. The ... | 01/02/2007 |
| 7121794 | Component assembly for reconfiguring a centrifugal pump A component assembly is provided for converting a conventional centrifugal pump, of the vortex impeller type for example, to a different type of centrifugal pump, such as a spiral impeller pump. The component assembly enables a resident centrifugal pump to be conver... | 10/17/2006 |
| 7107677 | Process, apparatus, and kit for assembling and disassembling a cryogenic pump A process, apparatus, and kit for horizontally assembling a cryogenic pump with an apparatus generally including a workstand, a plurality of support stands longitudinally spaced apart from the workstand and a roller transport structure. The kit includes the apparatu... | 09/19/2006 |
| 7100265 | Method for aligning a drum assembly used in a video recording device Methods and apparatuses for aligning the component parts of a drum assembly are disclosed. One aspect of the invention relates to tools for measuring and aligning the component parts of the drum assembly. By way of example, the tools may include indicator tools for ... | 09/05/2006 |
| 7074017 | Quick-release pump module A slurry pump includes a power frame as well as a wet end, and the wet end comprises a casing, an impeller and wear ring in the casing, a stub shaft connected to the impeller, a sleeve assembly for the stub shaft and an adapter for adjusting the wet end to the power... | 07/11/2006 |
| 6997689 | Offset bearing for extended fuel pump life A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial centerline (CL′) passing through a center of the journal bearing block (20) wi... | 02/14/2006 |
| 6884032 | Water pump and method of closure A water pump having a housing with an opening defined by an axial inner retention surface and a radial outer surface. A plug formed of sheet metal includes a radial closure portion surrounded by a continuous axial flange adapted to be press fitted into the inner ret... | 04/26/2005 |
| 6842968 | Device and process for mounting a rotor of a hermetic compressor A device and a process for mounting the rotor of a hermetic compressor, said device comprising a pulling rod (40), which is loosely and coaxially provided through the rotor (30) of the electric motor of the compressor, in order to have a first end coup... | 01/18/2005 |
| 6752589 | Method and apparatus for retrofitting a steam turbine and a retrofitted steam turbine A first steam turbine of a reaction stage design is retrofitted to form a second turbine of a substantially impulse stage design using common components with the first turbine. To retrofit the new steam path into the first turbine, the upper outer and inner shells a... | 06/22/2004 |
| 6685427 | Brush seal for a rotary machine and method of retrofitting A seal is provided for controlling flow of a fluid in a fluid path in a rotary machine. The seal comprises a brush seal carrier having a front plate and a back plate disposed therein. A brush seal is disposed between the front plate and the back plate. In... | 02/03/2004 |
| 6634102 | Method of removing a sensing rod from a hydraulic water pump A method of removing a sensing rod from a hydraulic water pump includes an access plug, a sealing o-ring, and an end block modified to receive the access plug. The access plug preferably includes a front flange, a threaded body, and a rear tapered end. An... | 10/21/2003 |
| 6626641 | Nozzle for turbine A steam turbine of the type which incorporates a turbine case defining a plurality of passages having outlets opening through an inside end wall of the turbine case in a direction generally parallel to the turbine shaft, with nozzles positioned over the o... | 09/30/2003 |
| 6622381 | Method of manipulating a pump A method for removing a stator tube from a position about a rotor of a progressing cavity pump is provided. The apparatus includes an actuator assembly having a base and a piston which is longitudinally displaceable relative to the base, and a pusher rod.... | 09/23/2003 |
| 6584686 | Method for converting the configuration of a transmission pump assembly The present invention provides an inexpensive and easily produced method for refurbishing transmission pump assemblies. The method of converting a transmission pump assembly from a first configuration to a second configuration comprises the steps of: a) p... | 07/01/2003 |
| 6553645 | Hermetic motor compressor and method assembling the same A motor stator is fixed to a body shell by shrinkage fit with a large fitting margin, and a compression mechanism is then shrinkage fit with a small fitting margin, and welded thereafter. Afterwards, an auxiliary bearing assembly is fixed in position with... | 04/29/2003 |
| 6358000 | Method of repairing a reactor coolant pump shaft and a reactor coolant pump repaired by such method Cracks in the shaft of a reactor coolant pump adjacent a tapered end on which the impeller is mounted are removed by machining a circumferential groove in the pump shaft to a depth and an axial length which removes the cracks but does not extend into the ... | 03/19/2002 |
| 6301782 | Apparatus and method for controlling angular relation between two rotating shafts The timing gear device or structure (26) has a pair of timing gears (28, 30) mounted on parallel rotating shafts (22, 24). Each timing gear (28, 30) has an outer gear portion (32) and a concentric interfitting inner gear portion (34). Outer gear portions ... | 10/16/2001 |
| 6283740 | Rotary lobe pumps A rotary lobe pump is provided with an improved sealing mechanism between the rotor and outside diameter of the shaft upon which the rotor is mounted. An adapter is provided for the drive shaft which enables the drive shaft to be easily coupled to a varie... | 09/04/2001 |
| 6220234 | Coated compressor diffuser A coating for a portion of the flowpath of a diffuser of a centrifugal compressor. The coating covers a portion of the diffuser against which flows high velocity air from the compressor blades. The coating is a smooth, tenacious, heat-resistant powder pai... | 04/24/2001 |
| 6206632 | Bleed tube for centrifugal pump and method for retrofitting same An air bleed tube is attached to a single-stage centrifugal pump, which has an impeller and a liquid suction tube whose inlet is at a center of the impeller. The air bleed tube is attached with its air inlet at an exposed eye of the impeller to bleed air ... | 03/27/2001 |
| 6162032 | Elastomeric stator for eccentric spiral pumps An elastomeric stator for an eccentric spiral pump is provided. The stator has a lining that is made of elastomeric material and has a hollow chamber that serves for accommodating a rotor. The hollow chamber has a double or multiple spiral configuration. ... | 12/19/2000 |
| 5971702 | Adjustable compressor bundle insertion and removal system A rotary machine, such as a compressor, includes a casing having an annular cavity. The cavity is stepped to include a first circumferential surface of a first size and a second circumferential surface of a second size, less than the first size. At least ... | 10/26/1999 |
| 5873697 | Method of improving centrifugal pump efficiency The method includes replacing conventional wear rings between a centrifugal pump casing inlet and the rotatable impeller having a plurality of circumferentially spaced blades. A substitute wear ring is formed of a thermoplastic polymer, POLY-ETHER-ETHER-K... | 02/23/1999 |
| 5749224 | Extended range thruster system and method of determining thrust An electrohydraulic actuator has a housing divided into pump and cylinder portions respectively containing a centrifugal impeller driven through a hub by an externally mounted motor, and a pushrod actuated by a piston and arranged to advance the piston an... | 05/12/1998 |
| 5678306 | Method for reducing pumping damage to blood Methods are provided for minimizing damage to blood in a blood pump wherein the blood pump comprises a plurality of pump components that may affect blood damage such as clearance between pump blades and housing, number of impeller blades, rounded or flat ... | 10/21/1997 |
| 5667040 | Method for changing a packing cup on a brake actuation-slack adjuster The method includes moving a piston and a force transmitting element connected to the piston to a locking position. The piston and force transmission elements are locked in the locking position which preferably is displaced from the brake released positio... | 09/16/1997 |
| 5520512 | Gas turbines having different frequency applications with hardware commonality Power generation turbines having different power outputs for different power grid frequency applications have modular second and third stages, rotors, bucket wheels for all stages and other ancillary parts. The first and second turbines have sizes not geo... | 05/28/1996 |
| 5501573 | Segmented seal assembly and method for retrofitting the same to turbines and the like A segmented seal assembly for retrofitting existing turbine units and the like. In accordance with one aspect of the present invention, the assembly comprises a plurality of semicircular segments disposed between a turbine casing and moving blades of a tu... | 03/26/1996 |
| 5425173 | Method of resupplying new replacement tubing in a medical cassette for ambulatory medical infusion pumps A method for resupplying a remote cassette assembly (14) for an ambulatory medical infusion pump (10) with a new replacement tube (22a) includes the steps of disassembling a used tube assembly (22) from the cassette assembly (14) by removing a luer lock (... | 06/20/1995 |
