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| Number | Title | Issue Date |
| 8172232 | Non-contact seal for a gas turbine engine A seal comprises the combination of a primary seal and a secondary seal each of which acts on at least one shoe that is installed with clearance relative to one of a rotor and a stator in a position to create a non-contact seal therewith. The at least one shoe is pr... | 05/08/2012 |
| 7896352 | Seal with stacked sealing elements A hybrid seal for sealing the circumferential gap between a first machine component and a second machine component comprises at least one shoe extending along one of the machine components in a position to create a non-contact seal, at least one spring element conne... | 03/01/2011 |
| 7726660 | Non-contacting seal for rotating surfaces A non-contacting seal for sealing in high temperature applications includes at least one segment having an inner pad with a hydrodynamic/hydrostatic lift-off geometry enabling the seal to run in a non-contact mode, and at least one finger spring supported on the pad... | 06/01/2010 |
| 7427070 | Unitizing element and method for assembling a seal An annular unitizing element has a rotor engaging member, a stator engaging member, and a rear member. The radially outer surface of the unitizing element has two areas of differing diameter, one corresponding to the rotor engaging member and the other corresponding... | 09/23/2008 |
| 7387301 | Brush seal for sealing a gap between a rotor and a stator The invention relates to a brush seal for sealing a gap between a rotor and a stator, with at least one brush ring, comprising a number of sealing brushes and at least two annular brush ring carriers, running in the circumferential direction of the rotor. Each brush... | 06/17/2008 |
| 7364165 | Shaft seal mechanism A leaf seal as a shaft seal mechanism is made compact and enables reduction of manufacturing cost. Plural thin plates 29 lapped one on another in layers have their outer circumferential proximal ends fixed to each other by welding so that an annular thin plat... | 04/29/2008 |
| 7364166 | Seal and retainer for a fluid connection A seal/retainer unit (10) comprising an annular sealing gasket (12) and a plurality of retaining legs (14) extending generally perpendicularly therefrom. The sealing gasket (12) and the retaining legs (14) are formed in one piece (... | 04/29/2008 |
| 7350819 | Pretensioner A gas generating system (24) is provided including a gas generant container (34) and an initiator (28). The initiator (28) is positioned exterior of the gas generant container (34) so as to enable fluid communication with the conta... | 04/01/2008 |
| 7329098 | Adjustable support bar with adjustable shim design for steam turbine diaphragms A support arrangement for a turbine diaphragm segment in a split turbine casing includes a semi-annular diaphragm segment having a horizontal joint surface; a support bar joined to the diaphragm segment adjacent the horizontal joint surface, the support bar formed w... | 02/12/2008 |
| 7320468 | Sealing arrangement A sealing arrangement for sealing a leakage gap between relatively moveable parts in a flow path between a region of high fluid pressure and a region of low fluid pressure comprises a sealing member having an upstream surface, a downstream surface, a radially outer ... | 01/22/2008 |
| 7314218 | Externally mountable spiral adaptor An adaptor that can be used with rotary fluid equipment will protect mechanical seals and/or packing material adjacent a seal cavity (18) of the equipment. The adaptor includes an annular body (30) with a central bore (32) adapted to receive a s... | 01/01/2008 |
| 7290769 | Sealing device with a brush gasket and flexible washer for a high-pressure turbine of a turbomachine A sealing device for sealing between two static portions of a turbomachine includes a brush gasket formed by a plurality of resilient bristles which are, at least in part, held in a housing. Each bristle has a main portion and a secondary portion interconnected by a... | 11/06/2007 |
| 7291947 | Electric rotating machine with bearing seals Hydrogen gas is circulated to cool an electric rotating machine main body, and brush seals are provided to contact a predetermined position on the outer circumferential surface of a rotating shaft. As a result, contact of a sealing oil and the hydrogen gas, contact ... | 11/06/2007 |
| 7261300 | Hydrodynamic foil face seal A foil thrust bearing forms the primary rotating interface for a film riding face seal. This face seal includes a spring system that will allow the entire assembly to translate axially relative to a static attachment. The complete assembly will form a hybrid foil/fi... | 08/28/2007 |
| 7249769 | Seal apparatus A seal (40) provides sealing between two pressure zones (60, 62) and a rotating and non-rotating member (42, 52) by providing a first sealing member (46) between two seal lands (48, 50). A second seal (64) is mounted between... | 07/31/2007 |
| 7237381 | Control of exhaust temperature for after-treatment process in an e-turbo system A method for operating a turbocharged internal combustion engine having an after-treatment device for treating exhaust gas discharged from the turbocharger, wherein exhaust gas from the engine is passed through a variable-geometry mechanism for regulating power prod... | 07/03/2007 |
| 7232286 | Seal device and method for operating the same and substrate processing apparatus comprising a vacuum chamber The present invention provides a seal device comprising a sealing passage which allows communication between a first space and a second space, and evacuation lines individually connected to the first space and the sealing passage. A gas feed line for feeding dry gas... | 06/19/2007 |
| 7232124 | Sheet separator A sheet separator includes an advancing roller driven to rotate to move a sheet forwards along a sheet path, and a reversing roller driven to rotate to move a sheet backwards along the path. The reversing roller and advancing roller are mounted adjacently and are re... | 06/19/2007 |
| 7216871 | Non-contacting seal for rotating surfaces A non-contacting seal for sealing in high temperature applications includes at least one segment having an inner pad with a hydrodynamic/hydrostatic lift-off geometry enabling the seal to run in a non-contact mode, and at least one finger spring supported on the pad... | 05/15/2007 |
| 7214034 | Control of leak zone under blade platform A system for controlling a leakage zone under platforms of blades of a turbomachine blade-wheel by liners having edges that flare radially inwards, and that are disposed in inter-blade cavities defined by the platforms, by upstream and downstream radial walls of the... | 05/08/2007 |
| 7201377 | Unitizing element and method for assembling a seal An annular unitizing element comprising a rotor engaging member, a stator engaging member, and a rear member. The radially outer surface of the unitizing element comprises two areas of differing diameter, one corresponding to the rotor engaging member and the other ... | 04/10/2007 |
| 7201379 | Seal assembly, cartridge, and method A seal assembly and cartridge for sealing a space between a rotating member and a stationary member in which a sleeve extends around the rotating member and with the inner surface of the sleeve being spaced from the outer surface of the rotating member to form a gap... | 04/10/2007 |
| 7188477 | High temperature dynamic seal for scramjet variable geometry A seal assembly for use in an engine, such as a scramjet engine, having a movable element, such as inlet cowl flap, is provided. The movable element has an outboard structural member which requires thermal protection. The seal assembly includes a sealing element and... | 03/13/2007 |
| 7172199 | Inner air seal anti-rotation device An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in th... | 02/06/2007 |
| 7159873 | Shaft seal The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member posit... | 01/09/2007 |
| 7159872 | Seal arrangement A seal arrangement (73) is provided in which seal elements (77) incorporate passages (90) allowing an air flow to be presented to tip edges (78) of the seal elements, in order to create air suspension and diminish excessive wear. These pa... | 01/09/2007 |
| 7134668 | Differential pumping seal apparatus A differential pumping seal apparatus includes a differential pumping seal for sealing a first space and a second space from each other in a non-contact manner, and a back up seal mechanism for sealing the first space and the second space from each other in a contac... | 11/14/2006 |
| 7125018 | Low-friction seal A low-friction seal comprising a quasi dimensionally stable sealing ring (44) that is accommodated with radial and axial clearance in a groove (30; 76) of one of two surface, whereby said surfaces are sealed off from each other and can move in a relati... | 10/24/2006 |
| 7121551 | Bushing arrangement for seal cavity protection in rotating fluid equipment An arrangement (120) of members for a throat bushing for rotary fluid equipment includes a first member (122) that is useful for seal cavities that contain conventional packing, and a second bushing member (132) that will be used in conjunction ... | 10/17/2006 |
| 7093837 | Turbine spring clip seal An improved turbine spring clip seal for directing gases to be mixed with fuel in a combustor basket. The turbine spring clip seal is composed of inner and outer housings and a center sealing member disposed between the inner and outer housings. The center sealing m... | 08/22/2006 |
| 7090220 | Cartridge-type bearing seal for machine tool spindle A cartridge type bearing seal facilitates the prevention of contaminant ingress between a spindle rotor and a spindle housing, particularly in situations where a circumferentially uniform fluid pressure is generated within the annular volume of the spindle housing. ... | 08/15/2006 |
| 7090178 | Sealed rotary joint for turret rotator A rotatable payload support turret for operation in a potentially hazardous environment includes a fixed element attached to a vehicle or fixed structure and a rotatable element, supported for rotation with respect to the fixed element. The turret includes a camera ... | 08/15/2006 |
| 7086648 | Acoustic seal The invention relates to a sealing device having an acoustic resonator. The acoustic resonator is adapted to create acoustic waveforms to generate a sealing pressure barrier blocking fluid flow from a high pressure area to a lower pressure area. The sealing device p... | 08/08/2006 |
| 7066719 | Bore and shaft assembly An exemplary bore for a shaft of a turbomachine includes a longitudinal axis extending generally from an inner end to an outer end of the bore, an outer seat disposed proximate to the outer end of the bore at an outer seat radius for an outer seal ring wherein the o... | 06/27/2006 |
| 7052014 | Snap together bearing isolator The assembly includes rotor and stator elements each having an inclined plane or surface juxtaposed to each other. This is a metallic assembly and the rotor and stator also have juxtaposed cavities. The stator cavity being of sufficient size to accommodate a sealing... | 05/30/2006 |
| 7044471 | Cartridge-type mechanical seal and back plate A cartridge seal is co-axially secured within the circular aperture of a back plate bolted to a pump housing. Annular recesses are provided around inner and outer sides of the back plate, surrounding the circular aperture. The cartridge-type seal includes a stationa... | 05/16/2006 |
| 7032904 | Inner air seal anti-rotation device An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in th... | 04/25/2006 |
| 7011452 | Rolling bearing unit with shield plate A rolling bearing with shield plate comprises an outer ring having an outer ring raceway and a circumferential anchor groove, the anchor groove provided at an axial end portion separated from the outer ring raceway and having an outside facing side surface, an inner... | 03/14/2006 |
| 7004475 | Flow dam design for labyrinth seals to promote rotor stability A method and apparatus for reducing steam swirl in a steam turbine. A plurality of seal segments (14) are circumferentially juxtaposed to form a seal ring (12) encircling the turbine shaft (10), each seal segment (14) supporting a plurali... | 02/28/2006 |
| 6994516 | Turbine rotor A turbine rotor can fix the heat resisting pipes provided in divided form per the disk member with simple structure for preventing wearing and damaging. The turbine rotor includes a coolant flow path formed through a plurality of disc shaped members respectively sta... | 02/07/2006 |
