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| Number | Title | Issue Date |
| 7862239 | Tilting pad thrust bearing A tilting pad thrust bearing is described including a substantially solid flat carrier body, a plurality of bearing pads, and an intermediate component which is disposed in the assembled bearing between the bearing pads and the carrier body, the intermediate compone... | 01/04/2011 |
| 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 |
| 7237957 | Journal bearing having self-retaining shoes and method of using the same to support a rotating shaft A journal bearing, and a method of using the same, that utilizes self-retaining bearing shoes that prohibit relative movement between an aligning ring and the bearing shoes in the axial direction. In one aspect, the invention comprises an aligning ring; at least one... | 07/03/2007 |
| 7163368 | Hydrodynamic bearing runner for use in tilting pad thrust bearing assemblies for electric submersible pumps An electrical submersible pump runner having a core layer and a wear layer affixed to the core layer. One embodiment of the invention provides an electrical submersible pump that includes a motor section and a centrifugal pump section. A seal section and rotary gas ... | 01/16/2007 |
| 7155826 | Motor spindle with improved machining precision and method for operating one such motor spindle A motor spindle includes a spindle shaft for receiving a tool. The spindle shaft is accommodated in the housing of the motor spindle in a fixed bearing and a loose bearing. The received tool enters into contact with the machined workpiece in a tool interface when th... | 01/02/2007 |
| 7063465 | Thrust bearing A thrust bearing 11 for use with a shaft 13 having a collar 15 mounted the shaft 13 and rotatable therewith has a base ring 17, a series of shoes 19 positioned on the base ring 17, and a compressible resilient spacing... | 06/20/2006 |
| 6976788 | Thrust bearing In a thrust bearing supporting a load in a thrust direction in a rotary portion, a size of a curved surface in the forward side of a lubricating groove with respect to a relative rotating direction of an opposing sliding member is set to be larger than a size of a c... | 12/20/2005 |
| 6746152 | Thrust bearing and method for equalizing load A multi-pad, fluid film thrust bearing has the pads suspended from the carrier ring on hydrostatic oil pressure regions. The oil is pressurized hydrodynamically by relative rotation between a load surface and the bearing surface of each pad; and the oil is passed th... | 06/08/2004 |
| 6739756 | Combination thrust bearing and journal bearing, and method for distributing fluid to same A thrust bearing tilting pad has face with a border region including an engagement surface and defining a pocket with generally longitudinal sidebars and a bottom. The pad has leading and trailing portions, with the face extending generally longitudinally therebetwe... | 05/25/2004 |
| 6588933 | Thrust bearing A thrust bearing for a rotating machine has a rotating ring and a bearing shoe for use in a non-filled oil chamber that permits oil flow through the bearing shoe. The oil flows out a leading recessed groove in the bearing shoe and across the bearing shoe ... | 07/08/2003 |
| 6565257 | Submergible pumping system with thermal sprayed polymeric wear surfaces In a pumping system, a PEEK composite material may be applied to wear areas on internal components. Typically, the internal component provides a metallic substrate which is prepared with a metallic bonding layer arc sprayed onto its surface, at least at t... | 05/20/2003 |
| 6499883 | Tilting pad for bearings A thrust bearing tilting pad has face with a border region including an engagement surface and defining a pocket with generally longitudinal sidebars and a bottom. The pad has leading and trailing portions, with the face extending generally longitudinally... | 12/31/2002 |
| 6443621 | Tilting pad thrust bearing arrangement A tilting pad thrust bearing arrangement (10, FIG. 1(b)) consists of an annular backing ring (12) providing an axially facing supporting surface (11) on which an array of bearing pads (201, 202 . . . 20i) is carried. Each ... | 09/03/2002 |
| 6422754 | Hydrodynamic sleeve bearing with tilting thrust buttons and oil distribution ring A bearing assembly is provided which includes an annular support member and a plurality of thrust bearing elements coupled to and distributed about the face of the support member. The thrust bearing elements are adapted to receive and support an axial loa... | 07/23/2002 |
| 6089754 | Thrust bearing A thrust bearing for use with a shaft having a collar mounted thereon, comprises a base ring, a series of thrust bearing shoes positioned on the base ring, each shoe having a leading edge connected to a trailing edge by an inner diameter edge and an outer... | 07/18/2000 |
| 6024494 | Polymer-backed thrust bearings A product lubricated thrust bearing includes an annular bearing disc made from a hard bearing material such as silicon carbide and having a plurality of radial lubrication grooves in at least one of a front and rear face thereof to define a plurality of b... | 02/15/2000 |
| 5971616 | Thrust bearing arrangement A tilting pad thrust bearing assembly comprises an annular body which carries an array of bearing pads either as discrete pads or in an integral ring. The pads are manufactured with opposite faces flat, that is, without the usual radially extending fulcru... | 10/26/1999 |
| 5927860 | Buttons for product lubricated thrust bearings A thrust bearing, for axially supporting a rotating member, includes a flat circular disk-shaped bearing body having a central axial bore and a plurality of axial cavities surrounding the central axial bore and a plurality of bearing elements releasably r... | 07/27/1999 |
| 5879085 | Tilt pad hydrodynamic bearing for rotating machinery A tilting pad bearing for a rotatable surface includes a plurality of circumferentially-arranged tilting pads, each of the tilting pads having a working surface and a trailing surface. A lubrication device for lubricating fluid is detachably affixed to th... | 03/09/1999 |
| 5876125 | Slide shoe for plain bearing use Slide shoe for use in a plain bearing, notably in an axial thrust bearing. The outer periphery (50) of the slide shoe has below its sliding surface (10) a peripheral recess (52) through which the slide shoe rim area (56) that features the appropriate rim ... | 03/02/1999 |
| 5795076 | Tilt pad hydrodynamic bearing for rotating machinery A tilting pad bearing for a rotatable surface includes a plurality of circumferentially-arranged tilting pads, each of the tilting pads having a working surface, a leading surface and a trailing surface. A lubrication device for lubricating fluid is detac... | 08/18/1998 |
| 5765951 | Plain bearing slide shoe with compression spring An axial plain bearing comprising a plurality of slide shoes (2) which are arranged annularly about a bearing axis of rotation, each slide shoe (2) being provided with an annular peripheral recess (52) on an outer circumference thereof, the annular periph... | 06/16/1998 |
| 5735668 | Axial bearing having independent pads for a centrifugal pump An axial bearing includes a ring, pads and a base. Multiple, independent pads are orientated in a curved or circular configuration with respect to one another. The pads are retained by recesses in the base. If the pump is installed in a centrifugal pump, ... | 04/07/1998 |
| 5660481 | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same A hydrodynamic thrust, journal or combined radial and thrust bearing which may be mounted within a sealed housing assembly which can be, for example, be used to replace rolling element bearings. The bearing can be designed for mounting to either the shaft... | 08/26/1997 |
| 5634725 | Bearing assembly A bearing assembly for supporting a rotatable shaft comprises a number of bearing pads supported in a housing and the mutually engaging surfaces of each bearing pad and the housing are two surfaces of closely similar shape.... | 06/03/1997 |
| 5620260 | Variable characteristic thrust bearing A hydrodynamic bearing which includes a carrier and a plurality of bearing pads circumferentially spaced about the carrier. The carrier is formed with a series of circumferentially spaced groups of pad support openings. Each group of pad support openings ... | 04/15/1997 |
| 5567057 | Tilting pad thrust bearing assembly An equalizing tilting pad thrust bearing assembly with inner and outer concentric retaining rings supporting an array of upper and lower equalizing links which support a circular array of tilting bearing pads. Each tilting pad has a flat bottom surface su... | 10/22/1996 |
| 5564836 | Multi-deflection pad hydrodynamic thrust bearings having a multimode construction A hydrodynamic bearing which includes a carrier and a plurality of bearing pads circumferentially-spaced about the carrier. The pads may have a modular construction whereby pad portions are releasably secured to support portions. The pads may also be rele... | 10/15/1996 |
| 5558444 | Bearings having spaced pads and methods of making the same A hydrodynamic thrust, journal or combined radial and thrust bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to optimize formation of a co... | 09/24/1996 |
| 5555715 | Shaftless spinning rotor of an open-end spinning machine An open-end spinning machine has spinning stations and a magnetic and gas bearing with a stator at each of the spinning stations. A shaftless spinning rotor being electrically drivable with a single motor includes a series of spinning cups with different ... | 09/17/1996 |
| 5515458 | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same A hydrodynamic thrust, journal or combined radial and thrust bearing which may be mounted within a sealed housing assembly which can be, for example, be used to replace rolling element bearings. The bearing can be designed for mounting to either the shaft... | 05/07/1996 |
| 5503479 | Low profile thrust bearings having spaced pads and methods of making the same A hydrodynamic thrust bearing and method of manufacturing the same. The bearing includes spaced planar pads supported on radially extending beams. The beams are connected to a base ring which is preferably circular. The radial beams support a circumferent... | 04/02/1996 |
| 5441347 | Multi-deflection pad hydrodynamic thrust and journal bearings having a modular construction A hydrodynamic bearing which includes a carrier and a plurality of bearing pads circumferentially spaced about the carrier. The pads may have a modular construction whereby pad portions are releasable secured to support portions. The pads may also be rele... | 08/15/1995 |
| 5382097 | Variable characteristic thrust bearng A hydrodynamic bearing which includes a carrier and a plurality of bearing pads circumferentially spaced about the carrier. The carrier is formed with a series of circumferentially spaced groups of pad support openings. Each group of pad support openings ... | 01/17/1995 |
| 5372431 | Hydrodynamic bearings having spaced bearing pads and methods of making same A hydrodynamic thrust, journal or combined radial and thrust bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to optimize formation of a co... | 12/13/1994 |
| 5312190 | Load sensing thrust plate Pressure sensing ports opening through the fares of tapered land thrust bearing pads are sized and located to afford a pressure proportional to the average pressure of the load along such surfaces in the radial and circumferential directions. The pressure... | 05/17/1994 |
| 5304006 | Self positioning beam mounted bearing and bearing and shaft assembly including the same A bearing and a shaft and bearing combination for replacing conventional rolling element bearing, washer and lock ring assemblies. The bearing is constructed so that it can be precisely positioned with respect to the shaft in the housing. Additionally, th... | 04/19/1994 |
| 5271676 | Combination package tilt pad journal bearing/dual self equalizing thrust bearings, with hydrostatic lift provisions The bearing pedestal for the rotating shaft 12 includes journal and axial thrust bearings 16 and 26, respectively. Both of the journal and thrust bearings have passages 70 and 80, respectively, and recesses 74 and 82 in the respective pad faces for flowin... | 12/21/1993 |
| 5255984 | Variable characteristic thrust bearing A hydrodynamic bearing which includes a carrier and a plurality of bearing pads circumferentially spaced about the carrier. The carrier is formed with a series of circumferentially spaced groups of pad support openings. Each group of pad support openings ... | 10/26/1993 |
| 5137373 | Bearings having beam mounted bearing pads and methods of making same A hydrodynamic thrust, journal or combined radial and thrust bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to optimize formation of a co... | 08/11/1992 |
