Spring-pressed Flange Patents (Class 285/279)
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Patent number: 11959569Abstract: A rotary device having a housing, a rotating machine component, a rotating member associated with the rotating machine component, a nonrotating member disposed within the housing adjacent the rotating member, and a sensor array disposed in the housing. The sensor array includes a plurality of sensing elements that are integrated with a control device and a wireless communication device. The wireless communication device is configured to communicate with a central control that is remotely located relative to the housing using electromagnetic waves.Type: GrantFiled: November 15, 2019Date of Patent: April 16, 2024Assignee: DEUBLIN COMPANY LLCInventors: Anton A. Petrou, Christoph Budzus, Sargon Guliana
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Patent number: 11554330Abstract: A plug unit configured for use in high performance liquid chromatography is described. The plug unit comprises a capillary comprising a capillary distal face; a sealing element, wherein at least a portion of the sealing element is located distal from the capillary distal face; and a biasing element configured to bias the capillary towards the sealing element.Type: GrantFiled: December 11, 2018Date of Patent: January 17, 2023Assignee: Dionex Softron GmbHInventors: Daniel Buerger, Michael Schadl, Til Richardsen
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Patent number: 11111989Abstract: A device for level adjustment for a motor vehicle includes a ball screw. The screw nut of the ball screw is driven by an electric motor. The spindle of the ball screw is displaceable with respect to a housing. The ball screw is supported with respect to the housing using two axial self-aligning bearings with a common pivot point such that the housing can pivot with respect to the spindle, thereby avoiding loads on the balls of the ball screw.Type: GrantFiled: February 22, 2018Date of Patent: September 7, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Wilfried Breton, Christian Harkort, Markus Holzberger, Sebastian Sommerkorn, Kilian Marsing
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Patent number: 10774960Abstract: A fluid transport coupling subcomponent can include a body having a first axial end with a first axial face, a second axial end, and a hollow conduit extending between the first and second axial ends, a tongue extending longitudinally from the first axial face; and a groove recessed into the first axial face. The tongue can extend a distance, DT1, from the first axial face and the groove can extend a distance, DG1, into the body from the planar face, where DG1 and DT1 can be different.Type: GrantFiled: April 26, 2017Date of Patent: September 15, 2020Assignee: SAINT GOBAIN PERFORMANCE PLASTICS CORPORATIONInventors: Hy B. Nguyen, Van Trong Tran
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Patent number: 10578237Abstract: A temperature-controlled fluid processing system with accessory attachment mechanism includes an accessory annular ring feature a mounting surface and a tapered surface sloping toward a central axis of the ring feature and away from the mounting surface, and engaging components on the primary device, including concentric annular member and rotation plate. The annular member includes spaced apart through holes housing spring biased pins. The rotation plate surrounds the annular member, and includes one or more ramped inner surface(s). The plate is rotatable between an unattached position wherein the ramped surfaces apply no radial inward force to the spring-biased pins, and an attached position wherein each ramped surface displaces a pin inward through its corresponding through hole such that the conical tip of the spring-biased pin engages the tapered surface of the ring feature, thereby immobilizing the accessory with respect to a head unit of the fluid processing device.Type: GrantFiled: August 12, 2016Date of Patent: March 3, 2020Assignee: Temptronic Corp.Inventor: Dana Butcher
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Patent number: 9772055Abstract: The invention relates to a coupling for releasably connecting pipes or pipe-like elements in a fluid-tight manner, having a first coupling part and a second coupling part which are connectable via a screw nut or the like, wherein the coupling parts are each provided with a radially outwardly extending flange and the flanges have end faces which are provided with a profile for sealing off the coupling, wherein the profile comprises at least one circumferential groove and at least one circumferential protrusion engaging in the groove, said groove and protrusion forming a fluid-tight seal between one another in the coupled state, and wherein the protrusion comprises a lateral sealing face which has an outwardly bulging shape in cross section, and wherein the groove has a corresponding lateral counterpart sealing face that is inclined with regard to the longitudinal axis of the coupling, such that, in the installation position, the sealing face of the protrusion is pressed against the counterpart sealing face ofType: GrantFiled: September 12, 2016Date of Patent: September 26, 2017Assignee: GEMUE Gebr. Mueller Apparatebau GmbH & Co. KommandInventor: Lukas Hohenstein
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Patent number: 9163772Abstract: A vacuum insulated cryogenic fluid transfer hose provides a fluid conduit and high-pressure fitting with a highly-insulative vacuum jacket which enables convenient access to the fitting. An interface collar is mounted to an end of the transfer hose with the fluid conduit and the fitting extending therethrough, a bellows fastened at a first end to an interior of the interface collar and fastened at a second end to a pass-through collar, a slide cuff mounted to the pass-through collar and extending over the bellows and the interface collar, and a connecting nut mounted to the pass-through collar. The slide cuff is displaceable relative to the interface collar between a retracted position, wherein the connecting nut, the pass-through collar, and the bellows are retracted to expose and provide access to the fitting, and an extended position, wherein the fitting is entirely covered by the enclosure.Type: GrantFiled: July 2, 2012Date of Patent: October 20, 2015Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Roger B. Fish, Michael D. Santorella
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Patent number: 8985484Abstract: A spray gun attachment is provided for fluid supply lines in a fluid handling system. A fluid input portion of a gun body is coupled wife a swivel connector, which includes a rotor that is rotatably coupled with a housing stem. In various embodiments, a bearing cup is rotatably coupled at one end with an exterior surface of the housing stem and anchored at an opposite end with the rotor. An O-ring seal is positioned between the rotor and the exterior surface of the housing stem. A bearing assembly residing within a raceway that is defined by flat surfaces on each of: the rotor, the housing stem, and ah interior bearing wall within the bearing cup.Type: GrantFiled: December 5, 2011Date of Patent: March 24, 2015Assignee: Eley CorporationInventors: Craig D. Eley, Darin Schollmeyer
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Patent number: 8251084Abstract: A safety breakaway connector has a male fitting and a female fitting inserted into one another. The female fitting includes a swivel that rotates about an angle to a breakaway portion of the invention. The swivel has a female portion connected to the breakaway portion and a male portion that pivotally connects to a nozzle. The male portion has an axis spaced apart from the axis of the breakaway portion. The male portion rotates or pivots about the female portion subject to a biased cam. The biased cam has a ball bearing that travels within a race formed in the male swivel. The biased cam provides an offset to the connector so that a fuel line in communication therewith avoids an orientation perpendicular to the direction of travel of a vehicle. The breakaway portion then detaches the fuel line cleanly from the swivel that remains with the fuel nozzle.Type: GrantFiled: March 18, 2009Date of Patent: August 28, 2012Assignee: Husky CorporationInventor: Robin J. Brown
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Patent number: 8082680Abstract: A shoe device secured to a syphon is disclosed for removing condensate from an internal surface of a rotating cylinder. The shoe device includes a shoe portion which is disposed adjacent to the internal surface of the rotating cylinder. The shoe portion defines a passageway having an upstream and a downstream end. The passageway permits a flow there through of the condensate from the internal surface of the rotating cylinder, through the upstream end of the passageway to the downstream end of the passageway. The shoe portion has a first and a second side, a surface extending between the first and second sides of the shoe portion. The surface is disposed adjacent to the internal surface of the cylinder. The shoe portion also has a leading and a trailing end and a face extending between the leading and trailing ends of the shoe portion. A clamp is secured to a distal end of the syphon and is connected to the shoe portion for clamping the shoe portion to the syphon.Type: GrantFiled: April 28, 2008Date of Patent: December 27, 2011Assignee: Kadant Inc.Inventors: Alan T Ives, Gregory L. Wedel
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Patent number: 7618068Abstract: A siphon elbow for pivotally connecting separate horizontal and vertical siphon pipes in fluid communication, comprising a horizontal body and a pivot body. The horizontal body has a first, longitudinally-extending passageway defined therethrough between opposite first and second open ends, the first open end connectable to an end of a horizontal siphon pipe. A second passageway is defined transversely through the horizontal body and intersects the first passageway. The second passageway is at least partially defined by opposite openings in the horizontal body. The pivot body has a passageway defined transversely therethrough between first and second open ends, the second open end being connectable to an end of a vertical siphon pipe.Type: GrantFiled: June 28, 2007Date of Patent: November 17, 2009Assignee: Kadant Johnson, Inc.Inventors: Tim N. Henry, Kenneth C. Lahrke, III
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Patent number: 7343968Abstract: A coupling seal assembly is described for directing a pressurized abrasive fluid between a non-rotating conduit member and a rotating second conduit member. The seal assembly includes a first ceramic floating seal member secured to the non-rotating conduit member and a second ceramic seal member secured to the rotating conduit member. Enhanced service life of the seal assembly under high pressures and high rotary speeds is achieved.Type: GrantFiled: August 24, 2005Date of Patent: March 18, 2008Assignee: Deublin CompanyInventor: Zbigniew Kubala
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Patent number: 6685234Abstract: A coupling assembly includes a pair of glands having ends that seal on opposite faces of a seal member. A coupling nut assembly cooperates with the glands to urge the ends against the seal member. A torque suppression assembly is mounted on a groove of the gland to limit rotational forces from the coupling nut assembly to the gland. The torque suppression assembly includes a thrust member that engages the coupling nut assembly and a bearing member that transfers axial make-up forces from the thrust member to the gland and rotates relative to the thrust member to reduce the torque transfer.Type: GrantFiled: October 12, 2001Date of Patent: February 3, 2004Assignee: Swagelok CompanyInventor: Paul G. Eidsmore
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Patent number: 6634391Abstract: An integrated fluid conduction system or hose assembly comprising a hose, a clamp, and a coupling device wherein the hose includes an external surface and a projection, with an orifice, extending from the external surface. The clamp includes an opening to receive the projection. The coupling device includes a compression section and a leg for coupling, fixing and positioning the projection orifices so that the compression section engages the clamp external surface so as to retain and stabilize the clamp to the hose. The invention is further directed to a coupling device as generally described above as well as to a method for coupling a clamp to a hose with the coupling device including the steps of positioning the clamp on the hose by disposing the projections into the clamp opening and attaching the coupling device to the hose, including placing the legs of the coupling device into the projection orifices, to couple the clamp to the hose.Type: GrantFiled: February 20, 2002Date of Patent: October 21, 2003Assignee: Sabo Sistemas Automotivos Ltda.Inventors: PĂ©ricles Marchini, Celso Geraldo Longhi
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Patent number: 6585296Abstract: A high pressure be seating assembly adapted for liquid sealing against a rigid surface having a connecting conduit. The tube sealing assembly includes a rigid, elongated, tube member having a spherical sector-shaped distal end portion with a radius substantially larger than the radius of the tube member. The tube member further includes a central conduit terminating at an apex of the spherical sector-shaped distal end portion to define an annular rim portion such that a fluid-tight seal can be formed between the central conduit of the tube member and the connecting conduit of the surface. This seal is formed at a contact interface between the rim portion and the surface when a relative axial force is applied therebetween.Type: GrantFiled: October 23, 2000Date of Patent: July 1, 2003Assignee: Innovadyne Technologies, Inc.Inventors: Neil R. Picha, James E. Johnson
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Patent number: 6494500Abstract: The present invention is a universal self-adjusting high pressure liquid connector for use with high pressure liquid chromatography (HPLC) columns requiring liquid-tight and leak free seals between fittings and unions. The present apparatus provides a liquid-tight seal between the end of a HPLC end fitting and a end cap thereby eliminating any potential dead volume in the area of the connection. The apparatus comprises a body, a fixed ferrule, a replaceable ferrule, a stem disposed in the body and a biasing spring slidingly mounted on a capillary tube of that extends through the connector. The spring biases the capillary tube of the connector into the HPLC end fitting, self-adjusting and maintaining a pressure sufficient to ensure a liquid-tight seal notwithstanding the depth of the HPLC tube stop or ferrule stop of the mating HPLC column.Type: GrantFiled: May 12, 2000Date of Patent: December 17, 2002Inventors: Geoff Todosiev, Michael Rigoli
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Patent number: 6398267Abstract: A device for coupling together in leaktight manner two smooth tubes disposed end-to-end, the device comprising a sleeve which diameter can be reduced by a tightening action, and a sealing ring (24) suitable for being disposed inside the sleeve so as to surround the ends of the two tubes. The ring is constituted by a looped flat strip (26) having two longitudinal ends (26a, 26b) suitable for coming into contact with each other when the sleeve is tightened around the tubes (20, 22). The first longitudinal end of the ring is provided with a notch (28), while the second longitudinal end of the ring is in the form of a tongue (30) suitable for being inserted into the notch. Both the width of the tongue and also the width of the notch taper in the direction going along the strip from the first longitudinal end to the second longitudinal end.Type: GrantFiled: December 14, 2000Date of Patent: June 4, 2002Assignee: Etablissements CaillauInventors: Pascal Detable, Michel Andre
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Patent number: 6343496Abstract: A method and apparatus for providing a contoured design confirguration in the wall of an open ended container workpiece employs plural molds on a rotating turret an which a plurality of molds are provided with each mold having an inwardly facing wall having the desired configuration. The workpiece is delivered from a pneumatic conveyor and vacuum star wheel into an open mold which then closes and the interior of the workpiece is pressurized with air. A rotary wand moves into the workpiece and discharges high velocity rotating liquid jets against the inner wall surface of the workpiece to forcefully move the wall outwardly into conforming contact with the inner wall surface of the mold to effect permanent reshaping of the workpiece into the desired configuration.Type: GrantFiled: March 6, 2000Date of Patent: February 5, 2002Assignee: Delaware Capital Formation, Ltd.Inventors: Joseph C. Hanna, Otis Willoughby, Greg Robinson
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Patent number: 6308994Abstract: A coupling assembly includes a pair of glands having ends that seal on opposite faces of a seal member. A coupling nut assembly cooperates with the glands to urge the ends against the seal member. A torque suppression assembly is mounted on a groove of the gland to limit rotational forces from the coupling nut assembly to the gland. The torque suppression assembly includes a thrust member that engages the coupling nut assembly and a bearing member that transfers axial make-up forces from the thrust member to the gland and rotates relative to the thrust member to reduce the torque transfer.Type: GrantFiled: April 8, 1998Date of Patent: October 30, 2001Assignee: Swagelok CompanyInventor: Paul G. Eidsmore
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Patent number: 6217083Abstract: A swivel fitting is provided for use on a riser line associated with the underground storage tank of gasoline service stations. The swivel fitting includes an adapter sleeve that attaches to the riser line and a swivel sleeve with a quick release fitting for use in removably attaching a product transfer hose as is typically used to transfer product to the underground storage tank from a tanker truck. The adapter and swivel sleeves are rotatably coupled by a plurality of ball bearings to permit smooth rotation of the quick release fitting with respect to the riser line.Type: GrantFiled: March 26, 1999Date of Patent: April 17, 2001Inventor: Sergio M. Bravo
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Patent number: 6003907Abstract: A rotating joint for pressure hoses has a plug-in part (1) with a hollow pin (4) that projects into and is sealed against a receiving part (2). The rotating joint also has a rolling bearing, in particular a ball bearing, that has an outer race joined to the receiving part (2) and a inner race joined to the plug-in part (1), as well as two coaxially-arranged elastically biased angular ball bearings (K1 and K2). The angular ball bearings are biased by a thrust collar (21) under pressure, which is slipped onto the hollow pin (4) coaxially to the receiving part (2).Type: GrantFiled: January 21, 1998Date of Patent: December 21, 1999Assignee: Stolco Stoltenberg-Lerche GmbH & Co. KGInventors: Gunter Gau, Jochen Seelbach
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Patent number: 5992901Abstract: A device for coupling a coolant duct of a rotating part, especially for a back-up or transport rollers, includes a hollow resilient compensator device fixedly connected to a journal of the rotating part, wherein the journal comprises a bore hole for conducting a coolant and is insertable in a bearing of a stationary part. A second end of the compensator is connected to a first sealing ring. The compensator is enclosed by a receptacle sleeve which includes a second sealing ring that creates a sealin contact with the first sealing ring. The receptacle is connected to the stationary part at an adjustable distance wherein a pretensioning exerted on the compensator by the receptacle sleeve via the first and second sealing rings is adjustable in response to a distance of the receptacle sleeve from the stationary part.Type: GrantFiled: April 27, 1998Date of Patent: November 30, 1999Assignee: Mannesmann AGInventors: Hans-Werner Gohres, Franz-Josef Divjak, Rainer Lenk
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Patent number: 5964250Abstract: A transfer tube system includes a transfer tube, a spring, a pair of opposing seats, and a pair of end assemblies that provide independent axial spring loading of the opposing seats. The spring loading assures continuous sealing contact regardless of dynamic loading, dimensional stack-up, or geometry change resulting from interfaced wear. The transfer tube end assemblies include a spherical or conical seat for mating with the transfer tube. Particularly, the transfer tube has spherical ends for seating in the transfer tube end assembly seats. The conical/spherical seats permit angular motion of interfacing components without lift off and therefore assures minimal leakage.Type: GrantFiled: December 1, 1997Date of Patent: October 12, 1999Assignee: General Electric CompanyInventor: Peter W. Mueller
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Patent number: 5716080Abstract: A bearingless, mechanical, rotary, fluid-tight coupling apparatus for effecting a fluid-tight seal between a non-rotating member such as a fluid supply line and a rotating member, such as a spindle, of a flexible machine tool. The apparatus includes a guide member having an axially extendable and retractable plunger. The plunger has a polygonal-shaped shoulder portion protruding therefrom which is moveable slidably, axially within a polygonal-shaped recess formed in the guide member of the apparatus. The polygonal-shaped recess and polygonal-shaped shoulder portion operate cooperatively to allow the plunger to be retracted as needed when the spindle of the machine tool retracts to permit changing of a tool secured to the spindle, while permitting a slight degree of misalignment of the spindle relative to the apparatus without affecting the fluid-tight seal therebetween.Type: GrantFiled: July 30, 1996Date of Patent: February 10, 1998Inventor: James F. Kaleniecki
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Patent number: 5651567Abstract: 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 stator member is operatively mounted within the housing chamber and includes a proximal end communicating with the chamber aperture and defining an axial sealing face. The stator member also includes a distal end communicating with the first fluid inlet port. Additionally, the piston includes a first fluid passage defined by a co-axial bore and a second fluid passage defined by a plurality of co-axial bore spaced apart from one another peripherally around the first fluid passage. The coupler also includes a bearingless rotor member mounted for rotation relative to the piston about an axis having a proximal end and a distal end. The proximal end defines an axial sealing face that abuts the piston axial sealing face to form a fluid tight coupling.Type: GrantFiled: December 27, 1995Date of Patent: July 29, 1997Inventors: James F. Kaleniecki, Gerald R. Kaleniecki
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Patent number: 5577775Abstract: A unitary, fully-assembled bearingless coolant union which transfers cooling fluid from a fluid source to an axial bore of a rotating spindle on a stationary machine. The union includes a main housing which holds in position both a rotor assembly and a stator assembly such that a rotating seal on the rotor assembly remains in fluid-tight contacting relation with a non-rotating seal on the stator assembly. Means are provided to allow the seal members to move axially with respect to the spindle's axis of rotation in response to axial movement by the spindle itself and to allow the inclination of the seal members from a plane transverse to this axis of rotation in response to minor misalignment of the rotor assembly from concentric relation with this axis of rotation. The two-step process for installing the union includes (1) attaching the end of the rotor assembly to a spindle, and (2) mounting the union's housing assembly upon the stationary machine within the allowable set-up tolerance.Type: GrantFiled: February 7, 1995Date of Patent: November 26, 1996Assignee: Barco, A Division of Marison IndustriesInventors: Dennis G. Pearson, Dean E. Wanders
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Patent number: 5226677Abstract: The invention pertains to a rotary joint for use with rotating machinery, such as a dryer drum, where the joint is conveying steam by means of a rotating nipple and sealing structure. The primary elements are a stationary housing comprised of a head, body and a wear plate, a pickup tube and a spring biased nipple with a collar which engages a molybdenum lubricated reverse radius seal ring. Alignment of the components is maintained through the interaction of two guide bearings supporting the nipple, the wear plate sealing surface and the nipple collar which is spring biased against a reverse radius seal ring intermediate the wear plate sealing surface and the nipple collar sealing surface.Type: GrantFiled: August 9, 1991Date of Patent: July 13, 1993Assignee: The Johnson CorporationInventors: John H. Peter, Gerald L. Timm
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Patent number: 5174614Abstract: A rotary fluid union comprises a rotor having a sealing surface and mounted into a rotary member, and a stator having a sealing face and mounted in a stationary housing, the rotor and stator being mechanically disconnected other than by the sealing faces thereof being abutted. The sealing faces are abutted to define a gapless sealing interface, normally disposed in a plane perpendicular to the axis of rotation, but inclined to the axis of rotation in situation where the rotary member deflects radially from coincidence with the axis of rotation, whereby the sealing interface plane is at an angle to the perpendicular plane.Type: GrantFiled: July 3, 1991Date of Patent: December 29, 1992Inventor: James F. Kaleniecki
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Patent number: 5169181Abstract: 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 mounted upon the fluid receiving head and spherical roller bearings are interposed between the housing and nipple. The primary fluid seal is located adjacent the heat exchanger journal and impact forces between the seal components and nipple, and their surrounding structure, is absorbed by the use of annular elastic glide rings which also function as fluid seals.Type: GrantFiled: December 16, 1991Date of Patent: December 8, 1992Assignee: The Johnson CorporationInventors: Gerald L. Timm, James A. Medsker
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Patent number: 5163722Abstract: An improved apparatus for connecting first and second conduits having first and second bores, respectively to provide communication between the first and second bores which may be used with temperatures and/or wide variations in temperature. While a biasing element is used to provide a sealing ferrule with sufficient force to seal the second conduit, a ferrule forming screw may be used to form an initial seal if a conduit is used that is undersize with respect to the ferrule. A quick-lock adaptor is also attached to the base of the connector which adapts the connector for use with standard tubing fittings.Type: GrantFiled: July 26, 1991Date of Patent: November 17, 1992Assignee: Ruska Laboratories, Inc.Inventor: Raymond D. Worden
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Patent number: 5161831Abstract: A sleeve element is installed between two hollow gear shafts which are rotatably coupled relatively to each other by a bearing. The sleeve has a hollow cylindrical body which is received inside one of the shafts. The sleeve has a plurality of slots in one end thereof which permit lubricating oil to flow to the bearing. A plurality of spring elements project from the other end of the cylindrical body. The spring elements engage the one shaft and are biassed to urge the one end of the body against an end surface of the other shafts. The force of the spring elements is active at least during primary assembly of the shafts. At a particular temperature, such as the operating temperature of the shafts, the spring elements lose their force. Preferably, the spring elements and the cylindrical body are integrally formed of one part.Type: GrantFiled: August 13, 1991Date of Patent: November 10, 1992Assignee: Deere & CompanyInventor: Uli Eckhardt
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Patent number: 5148832Abstract: A faucet includes a spout having a shaft portion protruding inwardly from the spout to be rotatably engaged with a boss of the faucet; and two packing members disposed on two opposite sides of the boss having an outer packing member rotatably sealed between an annular shoulder portion of the spout and an outer seat portion of the boss, and having an inner packing member resiliently retained on an inner seat portion of the boss by a tensioning spring jacketed on the shaft portion which is protruded into an interior in the boss, thereby providing a resilient packing between the spout and the faucet for a smooth rotation of the spout for prolonging a service life of the packing members and the spout.Type: GrantFiled: October 28, 1991Date of Patent: September 22, 1992Inventor: Fu-Tung Lin
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Patent number: 5087082Abstract: This invention is directed to a novel rotary joint or coupling which is useful for coupling a rotating element to a non-rotating element. More particularly, this invention is directed to a novel rotary joint or coupling which couples a rotating element to a non-rotating element and allows for the passage of a process fluid from the rotating element to the non-rotating element or vice versa, and seals the flowing process fluid from the external environment.Type: GrantFiled: December 13, 1989Date of Patent: February 11, 1992Assignee: Indu-Tech Enterprises Ltd.Inventor: Niels A. Anthonsen
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Patent number: 5067753Abstract: The fluid-tight coupling is designed for connecting a fixed hydraulic line with a rotary hydraulic line. The fixed line (1) carries on its end an axially movable tubular piston (7) provided with a hemispherical head (8); the rotary line (2) has an offset end portion (15), the axis (Y) of which is eccentric with respect to the axes (X) and (Z) of the pipes (1) and (2), this end portion (15) being also provided with a hemispherical head (16); between the two hemispherical heads (8, 16) is interposed a wobbling rotary core piece (17) formed with a central orifice (18) and with two opposed concave conical bearing surfaces for fluid-tight engagement with both hemispherical heads (8, 16) respectively. In a preferred embodiment, the axial thrust exerted on the hemispherical head (16) corresponding to the rotary pipe (2) is supported by a hydrostatic bearing (24, 25) and the rotary pipe (2) is also supported by a hydrostatic bearing (22).Type: GrantFiled: May 18, 1990Date of Patent: November 26, 1991Inventor: Louis C. Porel
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Patent number: 5052432Abstract: A universal swivel body for a fluid handling hose connector has threaded inlet and outlet ends connected by an axial fluid passageway and capable of attachment to a stationary fluid supply line and a rotating fluid service line. The axial fluid passageway has a number of internal circumferential sealing surfaces, each of which is sized and located to provide a fluid tight seal in cooperation with a compliant seal ring and with a corresponding sealing surface on a swivel adapter designed for a particular working pressure. The outlet end of the swivel adapter is capable of rotation with respect to the swivel body so that the device can be used with a hose reel.Type: GrantFiled: August 30, 1990Date of Patent: October 1, 1991Assignee: The ARO CorporationInventors: Kerry G. Vonalt, William R. Tate, Ernest K. Gentit
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Patent number: 5050913Abstract: There is provided rotatable pressure tight pipe joints and non-rotatable pressure tight pipe joints. The rotatable pressure tight pipe joints preferably have mating spherical surfaces with a sealing ring overlapping the joint between two pipe ends and compression means resiliently holding the two body parts of the joint in contact. In the non-rotatable joints, the intersecting surfaces form a zigzag cross-section and are compressibly clamped together.Type: GrantFiled: April 24, 1990Date of Patent: September 24, 1991Inventor: Erwin Lenz
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Patent number: 4792164Abstract: A rotary joint for a stationary siphon is combined with a roll which has a cavity into which steam is introduced and which is rotatably supported by a frame. The rotary joint includes a main body fixed to an axial end of the roll. A supporting pipe for introducing steam is inserted through the main body, extends to the cavity of the roll, and has an outer end portion firmly fixed to the frame. A siphon line for discharging drain within the roll extends inside the supporting pipe, has one end disposed close to the inner wall of the roll and is firmly supported by the supporting pipe. A tubular member is mounted on the outer periphery of the supporting pipe in a sealing manner so as to be slidable along the supporting pipe and has an end shaped so as to form part of a sphere. A carbon member is interposed between the end of the tubular member and an inner wall of the main body for the purpose of providing a seal therebetween.Type: GrantFiled: February 24, 1987Date of Patent: December 20, 1988Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventor: Sadayoshi Suemitsu
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Patent number: 4758026Abstract: A rotary joint for establishing communication of a pressurized medium with a rotating heat exchanger drum wherein the joint seals and associated structure are of such configuration to permit internal balancing with respect to fluid pressures imposed thereon. A rotating nipple within the joint body utilizes spherical seal surfaces engaging annular seal rings to achieve self alignment and the nipple includes spring biased collars which automatically compensate for wear and retaining structure limits collar displacement to prevent joint damage.Type: GrantFiled: February 17, 1987Date of Patent: July 19, 1988Assignee: The Johnson CorporationInventor: Gerald L. Timm
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Patent number: 4606560Abstract: 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 the free end of the rotatable sleeve there is positioned a fixed combination seal and thrust bearing which carries the thrust load of the sleeve. A spherical surface on the fixed bearing engages a corresponding surface on a sleeve flange affixed to the rotatable sleeve to maintain the sleeve in position as it rotates. A second seal unit is provided on the sleeve at the opposite end of the housing, and a compression spring encircles the rotatable sleeve between the two seal units to urge them into engagement with their respective sealing surface. Both the combination seal and thrust bearing unit and the second seal unit can be replaced without removing and disassembling the joint.Type: GrantFiled: December 23, 1985Date of Patent: August 19, 1986Assignee: Aeroquip CorporationInventor: Donald G. McCracken
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Patent number: 4570440Abstract: An articulating type exhaust connector for a vehicle having a transversely mounted engine with an exhaust manifold moveable with respect to an exhaust header conduit caused by engine roll. The articulated connector includes a seating surface formed at the outlet of the manifold and a seal carried on the end of the header which engages the manifold. The end of the header and seal carried thereby is biased against the manifold by means of a flange and bolt connector and a washer type spring between the flange and the header so that the seal is pushed against the seat permitting the header and seal to articulate a substantial angular amount with respect to the manifold.Type: GrantFiled: July 2, 1985Date of Patent: February 18, 1986Assignee: Chrysler CorporationInventor: Daniel W. Doran
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Patent number: 4477107Abstract: A rotating joint for establishing supply and return fluid flow connections between stationary piping and a rotating drum and syphon pipe and in which separate bearings and seals are provided for a drum shaft and a syphon pipe.Type: GrantFiled: November 27, 1981Date of Patent: October 16, 1984Assignee: Duff-Norton Company, Inc.Inventors: George R. Ferguson, William W. Royer
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Patent number: 4458904Abstract: A seal for use with pipes to be inserted one into another with spigot and socket ends, comprising a sealing sleeve made of an elastomeric material and arranged in the socket, wherein the sleeve is provided with a radially resilient element, the arrangement being such that, after being mounted in the socket, the seal is clamped in the socket by the radial resilience of said element.Type: GrantFiled: June 9, 1983Date of Patent: July 10, 1984Assignee: Rubber- en Kunststoffabriek ENBI B.V.Inventor: Johannes C. Delhaes
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Patent number: 4360186Abstract: A Swivel Joint for use on producing wells which are being pumped, having an upper and a lower annular member, in juxtaposition, with a coil spring separating the members, the lower member having a curved external face to receive, in line contact, the inside wall of the retaining member, which is engaged with the upper member, and having a packing chamber and a packing nut having one end extending into said packing chamber, and a grease chamber in said packing nut, and packing members mounted in said packing chamber compressed by one end of said packing nut.Type: GrantFiled: November 10, 1980Date of Patent: November 23, 1982Inventors: William B. Tinsley, C. Richard Bacon
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Patent number: 4254972Abstract: The invention pertains to a rotary joint for transmitting fluids to or from rotating members characterized by its corrosion resistance, lightweight and tamper-proof construction. The joint includes a sheet metal stainless steel casing in which a tubular nipple is rotatably mounted upon graphite guide bearings. A nipple seal defined on the nipple engages an annular seal ring interposed between the nipple seal and a guide, and a compression spring biases the nipple and nipple seal in a direction to maintain a sealing engagement between the seal surfaces. A threaded adapter located at an end of the casing permits fluid conducting conduits to communicate with the nipple.Type: GrantFiled: January 4, 1979Date of Patent: March 10, 1981Assignee: The Johnson CorporationInventors: Roger D. Wiedenbeck, Kenneth W. Boughton, Richard Maurer
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Patent number: 4194767Abstract: A joint structure for transmitting fluid therethrough and having a rotary, hollow sleeve comprised of two sections, each section being journalled in a bushing supported in a stationary casing surrounding the sleeve sections. The adjacent free ends of the sleeve sections are telescopically interfitted for relative axial movement and keyed to each other for unitary rotation. A sealing ring is axially slidably mounted on each sleeve section and urged into engagement with an adjacent sealing surface provided on the housing by forces acting in a direction compressing the sealing rings for providing a rotary joint structure having an extended service life.Type: GrantFiled: May 8, 1978Date of Patent: March 25, 1980Assignee: Aeroquip CorporationInventor: Donald G. McCracken
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Patent number: 4006924Abstract: The present invention is a swivel coupling. The coupling provides an effective seal by utilizing the fluid pressure present in the coupling. The fluid exerts pressure against one component of the coupling forcing it to seal against another component while permitting complete rotation of those components.Type: GrantFiled: October 14, 1975Date of Patent: February 8, 1977Inventor: Audley V. Spencer