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| Number | Title | Issue Date |
| 7938451 | Multifunctionally swivelling coupling assembly for fluid lines A swivelling coupling assembly for providing a swivellable interconnection between fluid-containing lines. The assembly includes a housing and a retention member for retaining the housing while cooperating with it to allow the housing to spherically swivel therein. ... | 05/10/2011 |
| 7823929 | Radial rotary transmission leadthrough The present invention relates to a radial rotary transmission leadthrough with a rotating shaft which has at least two substantially axially running channels (4, 4′) which have radial transition openings (5) open to the periphery of the shaft, and wi... | 11/02/2010 |
| 7438325 | Rotating passage A rotating passage feed system for admitting pressure means into two machine parts (hub part (2), shaft (3)) which rotate relative to one another about a common axis. Conduits (17) that convey the pressure means are located in the shaft (3 | 10/21/2008 |
| 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 |
| 7399001 | Rotary fluid-feed coupling with temperature compensation A rotary coupling has a nonrotatable stator having a stator passage with an end opening along an axis and a rotor rotatable on the stator about the axis and having a rotor passage with an end axially confronting the stator end. A rotor seal is rotatable with the rot... | 07/15/2008 |
| 7371034 | Drilling attachment A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respect... | 05/13/2008 |
| 7338091 | Swivel joint system A swivel joint system for a cryogenic liquid transfer line, such as a liquefied natural gas line, and for return of cold gas associated with the cryogenic liquid transfer. The system includes a swivel joint for the passage of the cryogenic liquid and a swivel joint ... | 03/04/2008 |
| 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 |
| 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 |
| 7210687 | Shaft seal assembly A primary technical goal of this shaft seal device is to decrease the pressure of a sealant at a communication passage between a fluid chamber and a first seal portion, to further reduce the pressure by a floating ring, to make the first seal portion pressure-proof ... | 05/01/2007 |
| 7083200 | Fluid rotary union A fluid rotary union (FRU) includes a first member and a second member. The first member includes a plurality of spaced longitudinally directed bores of different lengths, each of which terminate at an associated radially directed bore communicating the longitudinal... | 08/01/2006 |
| 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 |
| 7000644 | Flexible hose A flexible hose for use as a refrigerant passageway in a vehicular refrigerating cycle has an inner hose and an outer hose. The outer hose covers the inner hose with a space formed in a given distance. The outer hose and the inner hose are formed of resin having fle... | 02/21/2006 |
| 6851724 | Dual flow rotating union A dual flow rotating union with a longitudinal axis, including a conduit having opposing ports oriented parallel to the longitudinal axis, the conduit having a rotating section and a stationary section. One conduit port is located on the rotating section, the other ... | 02/08/2005 |
| 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 |
| 6485062 | Multi-channel rotary joint A multi-channel rotary joint comprising-elastic seal rings each having an annular groove that are used to form a low-pressure channel space and a high-pressure channel space between the opposing peripheral surfaces of a joint housing and a rotator that ro... | 11/26/2002 |
| 6412823 | Rotating connector with compensating unit A rotating connector for the transfer of at least one pressurized process fluid, and comprising a central stem (2) on which there is placed a number of ring elements (3, 4) comprising at least one annulus element (3) for fluid transfer between an associat... | 07/02/2002 |
| 6412822 | Rotary joint A mechanical seal rotary joint of the end-face contact type which permits slurry fluids, such as polishing solution, to pass through a fluid passage without leaking out of the relatively rotating contact area therein. The rotary joint of the present inven... | 07/02/2002 |
| 6401746 | Rotating union for fluids, semi-fluids, gaseous fluids and other materials A rotating union for transferring a material stream, and especially a bearing damaging material stream, includes, a generally cylindrical body and an annular sleeve that is annularly spaced from the body and rotatably coupled thereto via a pair of axially... | 06/11/2002 |
| 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 |
| 6361237 | Coupling device A coupling device includes first and second relatively rotating members mounted about a common axis and first and second lines fixed between the first and second members. The first line is adapted to wrap around the first member in a first direction and a... | 03/26/2002 |
| 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 |
| 6203072 | Corrugating joint and syphon system A rotary joint for a heat transfer drum using a stationary syphon pipe system. The syphon pipe is supported on a syphon tube adjustably mounted upon the rotary joint body whereby the distance between the syphon pipe intake and the drum shelf can be very a... | 03/20/2001 |
| 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 |
| 5788288 | Sealing arrangement A dynamic sealing arrangement for connectors carrying high pressure fluids such as are used in the oil and gas industry for transferring production fluids from drilling installations to transport vessels. The sealing arrangement comprises a primary and a ... | 08/04/1998 |
| 5713609 | Rotary union apparatus A self-cleaning rotary union apparatus provides a fluid coupling between a pair of relatively rotatable fixture elements, and includes a base and a body that are rotatable relative to one another. The base includes a mounting surface, an interior surface ... | 02/03/1998 |
| 5651567 | Multi-passage bearingless fluid coupler A multi-passage bearingless fluid coupler providing an interface between a rotating machine tool spindle and a non-rotating coolant hose. The coupler includes a housing that defines a chamber that has an aperture and first and second fluid inlet ports. A ... | 07/29/1997 |
| 5529347 | Hydraulic turning joint Disclosed is a hydraulic turning joint which has substantially reduced longitudinal length with an equal number of oil passages therein and can reduce the mounting space in the equipment and which improves the work efficiency, accuracy and reliance of the... | 06/25/1996 |
| 5439029 | Rotary leadthrough A rotary leadthrough for feeding pressurizing medium to a rotatably mounted part includes a stator and a rotor rotatable relative thereto, the stator and the rotor being formed with at least one channel, respectively, sealing elements and sealing counter-... | 08/08/1995 |
| 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 |
| 5348352 | Rotary connector with removable spool A rotary connector for coupling at least one stationary pipe to a rotating pipe includes a casing which is connected to a stationary inlet pipe and a stationary outlet pipe and which houses a rotary stem. The rotary stem includes an inner stem disposed wi... | 09/20/1994 |
| 5330106 | Hose swivel system for dispensers A dispenser system wherein the dispensed material is supplied to a valved nozzle through flexible hoses. The valved nozzle is located in a dispenser gun usually hand held and a swivel distributor interconnecting the hoses to the dispenser gun structure ac... | 07/19/1994 |
| 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 |
| 5169181 | Impact resistant rotary joint with glide ring seals A rotary joint for rotating heat exchangers of the drum or roll type having a journal wherein damage to the rotary joint by radial impact forces is minimized by mounting the joint housing upon the rotating journal, the joint nipple is stationary and mount... | 12/08/1992 |
| 5110162 | Anti-corrosive rotary joint This invention pertains to a rotary joint for use with rotating machinery where the joint is conveying high temperature corrosive fluids such as molten salts. The joint includes both a stationary head to which external connections are made and a housing m... | 05/05/1992 |
| 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 |
| 5098135 | Rotary joint with axial compensation A rotary joint for introducing or removing a heat exchanging medium, such as steam, from a rotary dryer drum characterized by its ability to accommodate significant axial expansion or contraction with respect to the axis of drum rotation. A rod supported ... | 03/24/1992 |
| 5071171 | Swivel Swivel comprising two bodies being rotatable with regard to each other wherein the inner body is provided with several inlet ports opening to a ring-shaped channel defined between both bodies.... | 12/10/1991 |
| 5044673 | Rotary connector A rotary connector for selectively coupling a rotating pipe to a stationary pipe includes a housing for interconnection to the stationary pipe. A rotary stem is disposed within the housing for providing a fluid communication path between the rotating pipe... | 09/03/1991 |
| 4966396 | Connection device A connection device having an intermediate member, a first connector, and a second connector. The first and second connectors are releasably retained to the intermediate member, and the first and second connectors are rotatable with respect to the interme... | 10/30/1990 |
