"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 7104766 | Horizontal centrifugal pumping system The present invention provides a thrust bearing assembly and a horizontal skid utilized in a horizontal pumping system. In one embodiment, the thrust bearing assembly comprises a cylindrical open housing, at least one radial ball bearing, at least one rotating seal,... | 09/12/2006 |
| 7066653 | Bearing assembly and method A bearing assembly and method in which a bearing cage is disposed around a rotating member and a housing is disposed around the cage. A first portion of the radial outer surface of the cage extends in a slightly spaced relation to the corresponding portion of the in... | 06/27/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5738447 | Pad bearing assembly with fluid spray and blocker bar A bearing assembly for supporting a rotatable member, which includes a bearing casing with an inner surface and a fluid drain outlet, and pads mounted on the inner surface of the casing, is provided. Each pad has a face facing the rotatable member and has... | 04/14/1998 |
| 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 |
| 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 |
| 5007745 | Low flow tilting pad thrust bearing The bearing pads of a hydrodynamic tilting pad thrust bearing are cut from a ring and arranged in a circle within a retainer for bearing the load of a collar fastened to a rotating shaft. The leading and trailing edges of respective adjacent pads contain ... | 04/16/1991 |
| 4863291 | Bearing assembly An improved modular bearing assembly capable of operation for radical and thrust loads under starved and flooded lubricant conditions with low power losses. A journal bearing alone may be employed or journal and thrust bearings. Thrust bearings per se are... | 09/05/1989 |
| 4624586 | Bearing lubrication device A bearing for a large rotating shaft machine is subject to differing conditions of operations. In order to accommodate these differing conditions of operation, the lubricant flows throughout the bearings may have to be changed. The prior art method of cha... | 11/25/1986 |
| 4525083 | Trimetallic bearings For use in a pressure fed or flood lubricated bearing, there is disclosed a shaft load-bearing element (e.g., the thrust plate in a tapered land thrust bearing) preferably comprising three metallic layers including an inner layer adjacent the shaft surfac... | 06/25/1985 |
| 4501505 | Thrust bearing A thrust bearing for use with a shaft having a collar mounted thereon, comprising a base ring, a thrust bearing shoe having a leading edge connected to a trailing edge by an inner diameter edge and an outer diameter edge and having a working face with a b... | 02/26/1985 |
| 4494882 | Self-pumping thrust bearing for electric machines A self-pumping thrust bearing for electric machines having a vertical shaft is disclosed in which the oil is circulated via radially-extending bores which suck hot oil from an oil space adjacent to the vertical shaft and conduct it to at least one cooler ... | 01/22/1985 |
| 4456391 | Tilting pad thrust bearing A tilting pad thrust bearing comprising a bearing ring, a number of spaced, circumferentially mounted thrust pads, and a series of oil nozzles located in the spaces between the pads. The pads are mounted to pivot on the ring by means of two pins arranged ... | 06/26/1984 |
| 4455098 | Self-pumping thrust bearing for electric machines A self-pumping thrust bearing for electric machines having a vertical shaft is disclosed in which oil circulates through radially-extending bores in a rotating thrust ring to suck hot oil from an oil space and transfer it to a ring canal disposed in a sta... | 06/19/1984 |
| 4421425 | Fixed fad thrust bearing A fixed pad thrust bearing for a turbomachine comprises a ring of sector-shaped pads separated by grooves and facing a thrust collar integral with the rotor of the turbomachine within a thrust bearing cage integral with the rotor. The ring bears on a defo... | 12/20/1983 |
| 4335925 | Thrust bearing This invention is a tilting thrust pad bearing in which bearing pads 11 are supported on individual pillars 19 which themselves bear on supporting bars 23, carried by rockers 24. The supporting bars and rockers are identical components and can be used in ... | 06/22/1982 |
| 4287758 | Shaft mounting device and method A device for accommodating and measuring thrust loads on a rotatably mounted shaft wherein the thrust loading is in either axial direction. The rotatably mounted shaft has two shoulders facing in opposite axial directions which cooperate with a pair of th... | 09/08/1981 |
| 4275936 | Segment bearing in large rotary machines Segment bearings for use in large rotating machines utilize support elements in the forms of pins, pipes or the like. These support elements are arranged between a friction bearing segment and a supporting segment and are constructed with varying compress... | 06/30/1981 |
| 4273390 | Bearing system with thrust compensation means The present invention pertains to a thrust bearing system including a thrust bearing structure having at least one pair of opposed bearing faces defining a bearing space therebetween, and a sub-system for delivering lubricant to the bearing space. A load ... | 06/16/1981 |
| 4270814 | Thrust bearing A thrust bearing for a shaft is disclosed including a shaft thrust collar arranged in steps. The stepped construction features an inside bearing surface and an outside bearing surface axially offset from the inside bearing surface. In the bearing body for... | 06/02/1981 |
| 4247157 | Cant segment-radial bearing for heavily loaded high-speed shafts A cant or tiltable segment-radial bearing comprises a support segment and two guide segments in which there is mounted a shaft. The shaft can be sprayed with lubricant by means of nozzle tubes which are arranged in the intermediate spaces between the supp... | 01/27/1981 |
| 4084862 | Thrust support system for vertical shaft rotary machine The present invention is concerned with a thrust support system supporting on a stand the thrust of a rotator of a vertical shaft rotary machine. Said support system comprises a ring-like member for receiving thrust of the rotator, legs disposed at a give... | 04/18/1978 |
| 3982796 | Thrust bearings A multi-pad thrust bearing has the pads mounted on a carrier through a hydrostatic oil pressure cushion regions, the oil in which has been pressurized hydrodynamically by rotation between the pad bearing surfaces and the load surface; the oil is led throu... | 09/28/1976 |
| 3930691 | Swing pad bearing A novel pad-type fluid wedge sliding surface bearing in which the individual pads have a swing-like motion to produce a lubricating wedge between the face of the pad and the moving surface. The center of swing for each pad is located so that the fluid fri... | 01/06/1976 |