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| Number | Title | Issue Date |
| 7475914 | Rotary union for directing a heat exchange fluid A rotary union for supplying a heat exchange fluid to a rotating body includes a pair of hydrodynamic bushing bearings to retain the union housing within the desired alignment with the rotating body, a thrust bearing assembly secured to the rotating body, and a seal... | 01/13/2009 |
| 7434843 | Hollow shaft fluid rotary joint In the preferred embodiments, a hollow shaft rotary fluid joint assembly includes: (a) a hollow shaft through which electrical cables are passed; (b) a rotary fluid joint surrounding an outer diameter of the hollow shaft through which a fluid medium is passed, the r... | 10/14/2008 |
| 7416224 | Sliding ring fixing A device for fixing the sliding ring of an axial sliding ring seal for an axial rotary transmission leadthrough to a sliding ring support includes a conically tapered radial outer casing surface of the sliding ring and a holding apparatus designed as a cap nut and h... | 08/26/2008 |
| 7328921 | Fluid rotary joint A device which allows fluid to enter and/or exit the device axially or radially thru multiple ports, on and/or offset from the axis of rotation. One end of the assembly can be rotated axially with respect to the other while keeping fluids isolated from each other. C... | 02/12/2008 |
| 7219932 | Junction plate for subsea hydraulic couplings A junction plate assembly for subsea hydraulic couplings has gear-driven cam followers on the circumference of one, generally circular, junction plate and curved cam tracks on a corresponding junction plate to urge the plates together or apart. The gears can provide... | 05/22/2007 |
| 7213846 | Hydraulic connector block for axially shiftable part A bearing has a mount relative to which can move a part to which hydraulic fluid must be supplied. A connector has a housing fixed to the bearing mount and formed with a central bore centered on an axis and with a radial bore extending outward from the central bore.... | 05/08/2007 |
| 7040408 | Flowhead and method A flowhead for a well testing system is disclosed. The well testing system comprises a plurality of threaded connection pipes extending from the surface to a subterranean zone of interest which is isolated for testing purposes. Fluid flows from the subterranean zone... | 05/09/2006 |
| 7021674 | Rotatable vacuum coupling A rotatable vacuum has a passage through a spindle (32). The spindle protrudes through a bushing (30) and forms an annular chamber (46) therebetween that is connectable to a vacuum source through 360° of rotation. ... | 04/04/2006 |
| 7018513 | Siphon support, system and method for the use thereof The invention relates generally to an improvement to a rotary joint and stationary siphon system typically for use in the papermaking process. Disclosed is a siphon support that has a bearing that rotatably engages with a siphon and flow openings that allow for stea... | 03/28/2006 |
| 6719329 | Swivel having a reduced pressure area A high pressure swivel includes an inner and an outer wall. Each annular wall is connected to a respective distribution member via apertures which have an axial dimension which is smaller than the diameter of the inlet or outlet. In this way, the pressure area betwe... | 04/13/2004 |
| 6402202 | Two-way rotary joint for fluids A two-way rotary joint for fluids is disclosed. An illustrative example of the rotary joint includes a main body provided with two inlet ports, and a rotor rotatably coupled to the main body. The rotor has two passages each in communication with a respect... | 06/11/2002 |
| 6354633 | Swivel having a reduced pressure area A high pressure swivel includes an inner and an outer annular wall. Each annular wall is connected to a respective distribution member via apertures which have an axial dimension which is smaller than the diameter of the inlet or outlet. In this way, the ... | 03/12/2002 |
| 6234540 | Sealing arrangement A sealing arrangement (6, 20, 37) to be positioned between two adjacent members (2, 3; 12, 13; 26, 27) between which a fluid cavity (4) is defined. Such a sealing arrangement is by example used in a swivel structure. If the exerted pressure is considerabl... | 05/22/2001 |
| 6109659 | Hydrostatic rotary union A hydrostatic rotary union has a shaft with an axial passage therethrough received within a housing having a radial passage in fluid communication with the axial passage. The shaft and housing have a radial clearance between them which establishes a squee... | 08/29/2000 |
| 6085870 | Lubricant transfer connection A lubricant transfer connection for transferring lubricant from a lubricant transfer line which feeds into a lubricant supply bore machined in a bearing support housing. A lubricant transfer bushing is located at the moving interface between the lubricant... | 07/11/2000 |
| 6070917 | Swivel coupling for high pressure fluid A swivel coupling for high pressure fluid of the type providing an axle through which fluid can pass to a rotary connector. The swivel coupling includes first and second mechanical bearings spaced apart and mounted along the axle, wherein each mechanical ... | 06/06/2000 |
| 5908060 | Tree processing machine A tree processing machine having a boom, a tree processor head carrying tree processing elements, and a rotator rotatably connecting the tree processing head to the end of the boom. The rotator has a casing, that is non-rotatably mounted from the end of t... | 06/01/1999 |
| 5895077 | Swivel apparatus for fluid transport A swivel device comprising inner and outer mutually rotatable swivel members having respective inner fluid paths communicating with each other through one or more associated annular spaces at the interface between the swivel members. The annular spaces be... | 04/20/1999 |
| 5829479 | Rotary valve A rotary valve of a multi-circuit type consists of an outer valve body with a cylindrical hole therethrough and an inner valve body rotatably inserted into the cylindrical hole of the outer valve body. The outer valve body is at a plurality of heights pro... | 11/03/1998 |
| 5435607 | Rotary coupler A rotary coupler having two housing portions, one housing portion being rotatable with respect to the other housing portion includes two fluid channels including a water channel extending axially the length of the coupler and a slurry channel disposed rad... | 07/25/1995 |
| 5303959 | High speed rotary joint A rotary joint for supplying and/or removing a fluid heat transfer medium to/from a rapidly rotating roll or drum supported upon journals. The rotary joint nipple threads into the journal bore and closely fitting complementarily shaped cylindrical surface... | 04/19/1994 |
| 5209526 | Rotary joint assembly A rotary joint assembly is disclosed which includes a stator and a rotor, the stator having a stationary conduit for supplying a coolant through the joint assembly to a rotary body and the rotor being rotatable with respect to the stator and accommodating... | 05/11/1993 |
| 5125692 | Dry pneumatic system for hard rock shaft drilling A dry, vertical shaft drilling system including an inverted raiseboring cutterhead fitted with air nozzles and vacuum pickups. Weights are detachably stacked above the cutterhead. Cuttings are extracted through the weights into a swivel circumscribing the... | 06/30/1992 |
| 5110159 | Rotating union for supplying compressed air to a rotating part of a printing press A rotating union for supplying compressed air to the end of a journal of a rotating part of a printing press including a rotor disposed on the rotational axis of the journal and a tubular housing disposed in surrounding relation about the rotor. A plurali... | 05/05/1992 |
| 4606560 | Thrust bearing rotary joint An improved rotary joint structure for transmitting fluid into and removing condensate from a rotating device, including a stationary housing into which a rotatable sleeve extends. A siphon pipe is positioned concentrically within the rotatable sleeve. At... | 08/19/1986 |
| 4306741 | Rotatable swivel for one or more conduits The invention relates to a swivel for one or more conduits comprising inner wall portions (3) and outer wall portions (2) for each annular chamber which wall portions (2, 3) are rotatably supported upon each other by means of a single axial-radial bearing... | 12/22/1981 |
| 4289336 | Pipe swivel joint for a plurality of separate fluids A pipe swivel joint for simultaneous transfer of a plurality of separated fluids between a plurality of inlet conduits and a plurality of corresponding outlet conduits. The swivel joint includes an annular inner element, an annular outer element surroundi... | 09/15/1981 |
| 4288106 | Rotatable swivel for one or more conduits The invention relates to a rotatable swivel for one or more conduits said swivel comprising a plurality of annual chambers (4) formed by identical inner and outer wall portions (3 and 2 respectively), said wall portions (3,2) being rotatably supported wit... | 09/08/1981 |
| 4280720 | Horizontally developing multi-functions rotating connection A rotating connection device for a plurality of conduits in which a fixed part is constituted by a disc limited by a lower face and an upper face, each of the faces having a common axis of revolution, and at least one part able to move rotatingly around t... | 07/28/1981 |
| 4214780 | Rotatable pipe coupling structure The specification describes a rotatable multiple pipe coupling structure employing a labyrinth seal between each stationary pipe and its respective rotatable pipe. Because of no protruding parts from inner pipes into the channels, there will be minimized ... | 07/29/1980 |
| 4126336 | Multiline swivel A multiline fluid swivel comprises a plurality of vertically mounted modules, each module containing a shaft and a housing which circumferentially surrounds the shaft. A conduit within the shaft and a manifold within the housing provide a continuous fluid... | 11/21/1978 |
| 4065159 | Rotary connector A rotary connector for connecting a fixed pipe to a movable pipe for fluid flow therebetween comprising a cylindrical stator having an input for supplying fluid thereto tangentially of the axis of the stator and adapted to be coupled to the fixed pipe, an... | 12/27/1977 |
