Class / Patent application number | Description | Number of patent applications / Date published |
285382000 | DEFORMED | 72 |
20080284167 | LOW-VOLUME FITTINGS - Fitting that is compatible with standard fittings is described. In one embodiment, the end of one of a matched set of fittings is provided with an elastomeric material. The elastomeric material deforms when the matched fittings are coupled, resulting in a reduced volume. In certain embodiments, a tube is provided through the tube which is attached at a proximal end and extends to the distal end of the elastomeric material. When the fitting are coupled the tube protrudes past the end of the elastomeric material and into the coupled fitting. In certain embodiments the fitting otherwise conforms to International Standard ISO 594. | 11-20-2008 |
20090039649 | Anti-leakage and Anti-Cracking Connection Hose - An anti-leakage and anti-cracking connection hose comprises a pipe section and a pipe joint at its end, wherein the pipe joint includes a nut, a nipple and a ferrule, and the end of the pipe section is wedged into a cavity between the nipple and the ferrule. The improvement comprises: one end of the ferrule extends into the nut and the end is provided with an annular recess recessed inwards in which the central portion of the bottom surface of the nut is embedded, the nipple passes through the nut and the ferrule; the ferrule, the pipe and the nipple are tightly combined together by punching the ferrule. The hose can prevent from water leakage because the nut is directly connected with the ferrule by means of the annular recess. Both the nipple and the ferrule bear the pulling force applied to the pipe and the pipe joint and the shearing force caused by the punching force, so that rupture of the nipple and cracking of the hose can be avoided. | 02-12-2009 |
20090243291 | Flanged Mechanical Pipe Coupling Having Spacers - A mechanical pipe coupling having segments joined end to end by connection members has arcuate surfaces and flanges in spaced relation to the arcuate surfaces on each segment. The coupling is positionable between a first pipe element having a cylindrical outer surface and a second pipe element having an end flange to couple the pipe elements to one another. The arcuate surfaces engage the outer surface of the first pipe element; the flanges engage the end flange on the second pipe element. One or more spacers support the coupling segments in spaced relation to one another to permit insertion of the first pipe element between the segments. The spacers are deformable upon tightening of the connection members to permit the arcuate surfaces to engage the pipe element and the flanges to align with the end flange. | 10-01-2009 |
20090256357 | METHOD AND JOINT FOR SEALING - The present invention relates to a method of sealing an opening in a tubular body ( | 10-15-2009 |
20090302602 | METHOD AND ARRANGEMENT FOR CONNECTING PIPE TO CONNECTING PIECE, AND PIPE CONNECTION | 12-10-2009 |
20090302603 | GAS SUPPLY COUPLING FOR A WATER HEATER - A gas supply coupling includes a gas supply line receivable in a telescoped relationship with a fitting to define an interface section. A crimp ring is received at least partially over the interface section to provide a metal-to-metal seal between the fitting and the gas supply tube. | 12-10-2009 |
20100171309 | COUPLING DEVICE FOR TUBULAR MEMBERS - A coupling device includes a coupling body and a collar adapted to engage a tubular member in a fluid tight seal. The coupling device includes axially spaced front and back ferrules which engage during mounting to provide a plurality of seals intermediate the ferrules and the tubular member as well as the coupling body. The back ferrule includes a generally cylindrical or tubular wall that is elastically/plastically deformed to an arcuate shape to enhance the maintenance of the seals. | 07-08-2010 |
20100253077 | System for Connecting Undersea Pipes at Great Depths - Disclosed is a connection system for connecting together at least two ends. The system includes a casing made of an elastic structure and a sleeve passing through the casing along its axis. The casing presents a thickness that is variable and defines a sealed volume such that pressure outside the sealed volume greater than the pressure inside the sealed volume causes the resilient structure to deform elastically so as to decrease the thickness of the casing to a thickness under maximum stress. | 10-07-2010 |
20100308579 | INTEGRAL FACE SEAL - A fluid seal generally comprising a first fitting portion ( | 12-09-2010 |
20100327579 | FLUID FITTING - A fitting for securing a first fluid conduit to a second fluid conduit includes a coupling body and a die ring. The coupling body includes a first end and a second end defining an enclosed passage along a longitudinal axis therethrough. The first end of the coupling body includes a deformable compression sleeve having an outer diameter and an inner diameter defining a thickness. The die ring is disposed in surrounding relation to the compression sleeve, and includes an inner surface and engagement surface, wherein the engagement surface includes a diameter that is less than the outer diameter of the compression sleeve. When the first fluid conduit is inserted into the coupling body, the die ring engagement surface is adapted to compress the compression sleeve radially inward when the die ring is urged in an axial direction towards a second end of the coupling body. At least a portion of the compression sleeve flows between the inner surface of the die ring and an outer surface of the first fluid conduit. In one embodiment, the first fluid conduit is a hydraulic hose. In another embodiment, the first fluid conduit is cross-linked polyethylene tubing. | 12-30-2010 |
20120153614 | METHOD OF FORMING A CLAMPING RING AND A CLAMPING RING - For forming a clamping ring first the pipe is extruded. The extruded pipe is cut to form a pipe part. While extruding the pipe, its inner diameter is formed smaller than the outer diameter of a pipe onto which the clamping ring is positioned before making a pipe connection. The inner diameter of the pipe part is made larger by removing material from the inside of the pipe part but only over part of the length of the pipe part such that a stop edge is formed. The clamping ring is used on a pipe when making a pipe connection. | 06-21-2012 |
20120161438 | Press Fitting and Use Thereof - A press fitting, including a tubular component and has an end portion of the tubular component which can be compressed to make a connection. The end portion has an opening to receive a and a first region having an annular ridge to receive a sealing ring. A second region is arranged on the side of the ridge adjacent the opening and a third region is arranged on the side of the ridge remote from the opening. The overall wall thickness of the press fitting in the second region is increased at least in a section or sections in comparison with the wall thickness of the tubular component in the third region. | 06-28-2012 |
20120211978 | Pole Assembly - A pole assembly comprises a first tubular pole and a second tubular pole, the first pole comprising a central longitudinally extending portion having a first wall thickness and a longitudinally extending coupling portion adjacent the central portion, the coupling portion having a second wall thickness, the second wall thickness being greater than the first wall thickness, the first and second poles capable of being coupled in an end to end configuration with an end portion of one of the first and second poles extending within the other of the first and second poles, the coupling portion of the first pole overlapping the second pole, whereby a coupling between the poles may be formed by applying a radially compressive force around the coupling portion of the first pole. | 08-23-2012 |
20130026754 | MULTI-PIECE PIPING CONNECTOR USING GROOVES AND METHOD OF CONNECTING PIPE USING THE SAME - A method to connect piping and a piping connection, having the features of a ring connector configured to snugly fit around an external diameter of a pipe; and a piping shield connected to the ring connector, the piping shield having at least one observation window cut into the shield, wherein the piping shield covers an abutment end of the pipe to be connected, wherein a joint between the ring connector and the piping shield forms a connection. | 01-31-2013 |
20130106104 | DEVICE FOR COUPLING A TUBE TO A CIRCUIT ELEMENT, METHOD FOR MOUNTING AN ANCHORING RING ON A BODY OF SUCH A COUPLING DEVICE AND METHOD FOR DISMANTLING SUCH A DEVICE | 05-02-2013 |
20130270821 | COUPLING ASSEMBLY THAT ESTABLISHES A PIPE CONNECTION THROUGH PRESSURE CLAMPING - A coupling assembly for joining pipe ends includes a main body sleeve with a shoulder incorporating a sloped step. The main body sleeve has an inner surface with two claiming rings. The assembly further includes a swage ring which is moveable along the outer surface of the pipes. The inner surface of the swage ring includes ramps. The ramps force clamping rings to engage the pipe and form a seal as the swage ring is urged inward towards the main body sleeve. Additionally, the clamping ring includes a tab incorporating a sloped surface with a contour complementary to that of the sloped step. The surface of the clamping ring engages and presses against the surface of the sloped step, thus preventing movement of the swage ring away from the main body sleeve. The disclosure also pertains to a method of joining two pipes utilizing the disclosed coupling assembly. | 10-17-2013 |
20140175793 | PIPE RETAINER - A joint structure for connecting lengths of pipe uses a plurality of teeth to engage the surface of at least one end of the adjacent lengths of pipe to connect the ends. A deformable member applies forces to the plurality of teeth to engage the surfaces. In an aspect, the plurality of teeth are releasable. In another aspect, the plurality of teeth are permanently engaged into the surfaces. | 06-26-2014 |
20160003391 | PIPE JOINT - A pipe joint includes a joint body formed with a through hole therein along an axial direction, and having male threads and an extending shaft portion formed on one end side thereof; and a nut member formed with an insertion hole through which a tube member is inserted, and having female threads formed therein that screw-engage with the male threads. Annular projections are formed on an outer circumferential surface of the extending shaft portion, and the tube member, which is expanded in diameter, is gripped between the annular projections and an inner circumferential surface of the nut member. | 01-07-2016 |
20160047501 | Joining Structure and Joining Method Thereof - Provided are: a joining structure capable of suitably obtaining joining strength between components which compose the joining structure; and a joining method thereof. For this purpose, a joining structure ( | 02-18-2016 |
20160091126 | COMPRESSION FITTING WITH TORQUE NUT - A torque nut with an axially deformable projection protruding from the axially inner end face of the torque nut. The torque nut may be assembled as part of a compression fitting including one or more ferrules for engaging a tube held within the torque nut and a fitting body onto which the torque nut can be threaded. The axially deformable projection will engage an opposing face on the fitting body and this allows a person tightening the torque nut to to feel when the torque nut is madeup to prevent undermaking or overmaking the torque nut. When the axially deformable projection engages the fitting body, there will be an abrupt increase in torque needed to tighten the torque nut on the fitting body after only partial axial deformation of the axially deformable projection relative to the axially inner end face of the torque nut. | 03-31-2016 |
20160160574 | CONNECTION STRUCTURE BETWEEN PIPE BODY AND JOINT OF ALUMINUM ALLOY DRILL PIPE - The present disclosure provides a connection structure between a pipe body and a joint of an aluminum alloy drill pipe, comprising a first joint located at an end of the aluminum alloy pipe body and a second joint, wherein the first joint comprises an external cone section, an external threaded section and a first seal end face sequentially provided from inside to outside thereof, and a taper of the external cone section is smaller than that of the external threaded section; wherein the second joint is cylindrical and comprises an internal cone section fitted with the external cone section, an internal threaded section fitted with the external threaded section, a second seal end face, an elevator shoulder face, and a concave arc transition section between the internal cone section and the internal threaded section. | 06-09-2016 |
20170234464 | CRIMP CONNECTION WITH ONE OR MORE CRIMPING ELEMENTS | 08-17-2017 |
285382100 | Both members | 13 |
20080290659 | HIGH PRESSURE HOSE WITH TWO-PART COMPOSITE CONNECTOR FITTINGS - A coupling fitting for high pressure hose is provided. The coupling fitting includes a stem portion made of metallic material for connection to the high pressure hose. A coupling head made of a non-metallic material is connected to an end of the stem portion. The coupling head is configured for connection with a complementary fitting. | 11-27-2008 |
20090302604 | Method and Apparatus for coupling Expandable Tubular Members - An expandable tubular coupling apparatus includes a first expandable tubular member, a second expandable tubular member, and means for sealingly coupling the first expandable tubular member to the second expandable tubular member. | 12-10-2009 |
20130020800 | DEVICE FOR COUPLING FLUID-CIRCULATION TUBES AND RELATED METHOD - A device for coupling fluid-circulation tubes includes a first coupling connecting first and second tubes, in which first coupling the respective ends of the first and second tubes are arranged coaxially aligned with one another. At least one of the opposite ends of the first and second tubes is capable of being secured to a second coupling, which is configured to couple the first or second tube to a pipe of a fluid circuit, the second coupling including at least one portion made in one piece with the opposite end of the tube in question, such that the portion of the second coupling forms the opposite end of the tube in question. | 01-24-2013 |
20190145555 | In-Tube Fixing Assembly | 05-16-2019 |
285382200 | Simultaneous | 9 |
20090001722 | Coupler - As shown in FIG. | 01-01-2009 |
20090218814 | PRESS FITTING FOR A PIPE - The press fitting ( | 09-03-2009 |
20100052319 | Dual Seal Expandable Tubular Connection - The present invention provides an expandable tubular connection that may be expanded to large degrees of expansion (i.e., 15-25%) in highly constrained conditions, such as Fix-Fix conditions, by hydraulic means and produces a metal-to-metal seal after expansion. The expandable tubular connection incorporates a combination of elastomeric and metal-to-metal sealing components in the sealing system. The elastomeric sealing component provides sealing of the connection during hydraulic expansion and allows control of deformation rates of pin and box members to achieve a high stress interference contact between pin and box members resulting in a metal-to-metal seal after expansion. | 03-04-2010 |
20100207387 | HOSE FITTING - A hose fitting that includes a body having a connection portion configured for connection to an external component, a tubular nipple portion configured for insertion into an end of a hose, and a union portion joining the nipple portion to the connecting portion. The socket also has a crimp portion extending from the union portion of the socket. A swage collar having a tapered inner surface radially inwardly deforms the socket when the swage collar is moved axially over the socket to retain a hose between the socket and the nipple portion of the body. | 08-19-2010 |
20120007359 | Non-Rotating Mechanical Joint for a Hose Coupling - A hose coupling and method of manufacturing same are disclosed. The hose coupling includes a stem to which is staked a ferrule. The stem includes a radially inwardly directed groove into which a radially inwardly directed wedge of the ferrule is staked. The wedge includes a width that is greater than the width of the groove before staking. Moreover, the groove includes a bottom surface from which first and second canted sides extend at a first angle, while the wedge includes an inner surface from which first and second canted sides extend at a second angle. The first and second angles are not parallel but within five degrees of one another. The stem and ferrule form at least six distinct regions of surface contact to guard against rotation of the ferrule relative to the stem. | 01-12-2012 |
20130292939 | Fitting For Thick-Walled Pipes And Method For Its Production - A fitting for thick-walled pipes, having a contact region and a pressing region, the pressing region being arranged on the side of the contact region facing towards the pipe insertion opening, and the wall thickness in the pressing region being at least in sections less than the wall thickness in the contact region. The invention also relates to a method for producing a fitting for thick-walled pipes, in which a thick-walled pipe is radially widened in a fitting region arranged at one pipe end so that the internal diameter of the fitting region corresponds substantially to the external diameter of the pipe and the wall thickness in the fitting region corresponds substantially to the wall thickness of the rest of the pipe. | 11-07-2013 |
20160084409 | CRIMPING PROCESSES FOR HOSE ASSEMBLIES AND HOSE ASSEMBLIES PRODUCED THEREBY - Processes for securing a fitting to an end of a hose, and a hose assembly produced thereby. The fitting has an interior portion, an exterior portion, and a cavity therebetween. An end of the hose is located within the cavity and compressed between the interior and exterior portions. The exterior portion of the fitting has at least first and second circumferential crimped portions axially spaced apart along a length of the fitting, and first and second portions of the hose are compressed within, respectively, the first and second circumferential crimped portions. The exterior portion of the fitting further has an annular-shaped bubble portion between the first and second circumferential crimped portions. The bubble portion has a diameter that is larger than diameters of the first and second circumferential crimped portions, and the hose has a portion radially expanded into an annular-shaped cavity surrounded by the bubble portion due to the hose being compressed at the first and second portions thereof. | 03-24-2016 |
20160084410 | Pipe Joint - A method and apparatus for creating a joint between tubulars such as tubing, pipes, casing and liner for location in a well bore. A connector ( | 03-24-2016 |
20160169425 | CONDUIT FITTING WITH TORQUE COLLAR | 06-16-2016 |
285382400 | Outwardly expanded | 15 |
20100171310 | SEALED TUBULAR JOINT WITH PLASTIC EXPANSION AND AT LEAST ONE INCLINED SURFACE - A tubular joint in which radial expansion caused by the passage of an expander, inclined shoulder fittings formed respectively on a peripheral surface of the female element facing radially inwards and on a peripheral surface of the male element facing radially outwards, are subjected to a relative axial displacement towards each other to be urged into sealed mutual contact with radial interference. The tubular joint is, for example, useful in hydrocarbon wells. | 07-08-2010 |
20110121568 | Swellable connection system and method of using the same - A method of making a connection in hydrocarbon production equipment comprising positioning at least a portion of a receiving component about at least a portion of an insertable component, providing a swellable element within a circumferential space substantially defined by the at least a portion of the receiving component and the at least a portion the insertable component, and allowing the swellable element to expand. A hydrocarbon production equipment apparatus comprising an insertable component positioned within a receiving component, and a swellable element positioned between at least a portion of the insertable component and at least a portion of the receiving component, wherein the insertable component, the receiving component, or both is coupled to a hydrocarbon production equipment member, wherein the swellable element swells in response to contact with a swelling agent. | 05-26-2011 |
20120169047 | METHOD OF FORMING AN INTERNAL TUBE BEADLOCK - A unique tube punch forming die assembly and process is disclosed for forming a bead lock on a malleable fluid conveyance tube which provides for the attachment of a fluid connector to the tube. The fluid connector is held in the tube punch forming die constituting a die assembly where a forming groove is machined in the internal cavity of the fluid connector for forming a bead lock within the inside of the fluid connector when the punch forming die is compressed into the tube. The tube is first inserted into the punch forming die, then the die is punched to buckle the tube to form a bead lock in the tube inside the fluid connector as the end of the tube held in a cylindrical support ring. In a second embodiment a plurality of serrations are formed inside the fluid connector and the tube is forced against the serrations to improve the retention of the tube. | 07-05-2012 |
20150035276 | POLYMER PIPE CONNECTION ASSEMBLY - The invention relates to pipeline transport and can be used for connecting polymer pipes to each other or to metal pipes, as well as to polymer and metal containers. The polymer pipe joint assembly comprises a fitting, positioned inside the polymer pipe, a coupling, having at least one cylindrical section, which covers the pipe and fitting, wherein the assembly has a sleeve, capable of changing its geometrical dimensions and shape under pressure, said sleeve has at least one cylindrical section placed between the pipe and coupling, the fitting has a shoulder on its outside surface, restricting the movement of the pipe and sleeve, while the inside surface of the coupling has a lead-in chamfer. The change of the dimensions of the sleeve can be performed both by selecting different types of sleeve material or by its construction design. | 02-05-2015 |
20160146383 | HIGH STRENGTH FLEXIBLE FERRULE - A ferrule ( | 05-26-2016 |
285382500 | Bulged | 10 |
20080303277 | NON-BOLT JOINT STRUCTURE AND METHOD FOR PRODUCING NON-BOLT JOINT STRUCTURE - A non-bolt joint structure comprising; a packing ring sealing between a receiving opening section and an insertion opening section; an engaging means provided with an inner circumference of the receiving opening section preventing a polyethylene pipe from disengaging from the receiving opening section by engaging with an outer circumferential surface of the polyethylene pipe; and a tubular metallic inner core fitting an inner circumference of the insertion opening section of the polyethylene pipe, wherein the inner core is plastically deformed to include a first bulge portion that its cross-sectional shape bulges toward an outward radial direction, a second bulge portion is formed so that the insertion opening section of the polyethylene pipe bulges toward the outward radial direction along the first bulge portion of the inner core, and the polyethylene pipe is prevented from disengaging by the engaging means engaging with the outer circumferential surface of the second bulge portion. | 12-11-2008 |
20090189391 | Reinforced bead tube design - A tube fitting assembly is provided for a gas burner. The assembly includes a pre-deformed tube connector having first and second ends. At least one of the ends is provided an annular sealing bead formed by compressing and cold working at least two intermediate annular beads together. A first coupling member is provided defining a cavity and having a shaped seating surface adapted to sealingly engage a cooperating surface of the annular sealing bead. A second coupling member is provided rotatably and slidably disposed on the pre-deformed tube connector and is adapted to mate with the first coupling member. | 07-30-2009 |
20100181767 | PIPE COMPRESSION JOINT - A pipe compression joint assembly ( | 07-22-2010 |
20100295296 | METHOD OF MANUFACTURING FLANGED PIPE - An engaging dented portion | 11-25-2010 |
20130307265 | TUBE COUPLING JOINT - By previously press-fitting a ring ( | 11-21-2013 |
20160061357 | PIPE CONNECTING DEVICE - A pipe-connecting device includes: an inner ring having: an outer circumferential portion having a tip-contracted outer-circumferential flared surface that is to be press-inserted into an end portion of a tube to flare the tube, and an inner circumferential portion constituting a fluid transfer path; a pipe joint body that has a tubular screwing portion having an external thread; and a union nut having an internal thread that is screwed with the external thread. The inner ring including the tube is inserted into the tubular screwing portion, and the tip-contracted outer-circumferential flared surface is pressed through the tube by a pressing portion of the union nut. The pressing portion of the union nut is formed into an inclined inner circumferential surface that is inclined in the same direction as the tip-contracted outer-circumferential flared surface with respect to the axis of the tubular screwing portion. | 03-03-2016 |
20160061360 | INNER RING - An inner ring, in which a tip-contracted outer-circumferential flared surface to be press-inserted into a tube end portion to flare and deform the end portion is formed on the side of the tip end of a flared portion that is formed in an outer circumferential portion of an inner ring body, a section shape of the outer-circumferential flared surface in a direction extending along the axis of the inner ring body is formed into a convex curved surface passing through: a first place, which is the tube-press-insertion side tip end of a maximum-diameter portion of the flared portion; a second place, which is the tip end on the tube press insertion side; and a third place between the first place and the second place, and in which the diameter is equal to the outer diameter of the tube with respect to the axis. | 03-03-2016 |
20160061361 | PIPE CONNECTING DEVICE - A pipe-connecting device includes: an inner ring having an outer circumferential portion having, at a tip end, a tip-contracted outer-circumferential flared surface that flares a tube end portion; a pipe joint body that has a tubular screwing portion having an external thread; and a union nut having an internal thread. The inner ring flares the tube end portion, and is inserted into the tubular screwing portion. The tip-contracted outer-circumferential flared surface is clamped and pressed through the tube by the union nut which is screw-advanced by screwing with the tubular screwing portion. A tube pressing portion which is in the union nut, and which presses the tube against the tip-contracted outer-circumferential flared surface is formed into an inclined inner circumferential surface which is inclined in the same direction as the outer-circumferential flared surface with respect to the axis of the tubular screwing portion. | 03-03-2016 |
20160076686 | PIPE CONNECTING DEVICE - In a pipe-connecting device having a pipe joint body, a union nut, and an inner ring that is to be press-inserted into an end of a tube, a seal element portion is formed in a basal end portion of the inner ring, and a seal forming portion of the pipe joint body is formed. The pipe-connecting device has a configuration where, in an assembled state, the seal element portion and the seal forming portion are pressed against each other, and a diameter-contracted tube portion, which is in a tube end portion, and which is fitted onto a base-contracted diameter-contracted outer circumferential surface, and a tubular screwing portion are pressed against each other by a contact pressure that is lower than a contact pressure between the seal element portion and the seal forming portion, or separated from each other. | 03-17-2016 |
20160102789 | Tube-Fitting-Assembly Ferrule - A tube-fitting-assembly ferrule apparatus and method to secure connections between tubing sections against high pressure, vibration, pulsation, and hammering, by providing a tube-fitting-assembly ferrule which elastically deforms in use, securing the primary circumferential point seal with a shock-absorbing and shape-retaining force. | 04-14-2016 |
285382700 | By separate deformable element | 22 |
20080246278 | TUBE FITTING FOR STAINLESS STEEL TUBING - A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tub e outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened, the fitting may include a self-gauging feature to indicate sufficient pull-up to percent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and is at least about 3.3 times harder than the stainless steel tube end. | 10-09-2008 |
20080290660 | Coupling Between Two Bodies Comprising an Elastically Deformable Cutting Ring With a Screw Thread Forming Cutting Lips - The invention relates to a coupling between a first body ( | 11-27-2008 |
20080296895 | FERRULE WITH RELIEF TO REDUCE GALLING - High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut. | 12-04-2008 |
20080303278 | DEVICE FOR PIPE COUPLING - To couple a giving end of a first pipe and an receiving end of a second pipe, the device contains a rubber ring, a tubular screw, a C-shaped ring, and a rubber washer. The C-shaped ring is embedded in a groove of the giving end of the first pipe which is threaded through the rubber ring, the tubular screw and the rubber washer and is plugged into the receiving end of second pipe. Inside the tubular screw, the diameter is gradually shrunk to form a born-shaped space with a slant wall. When the tubular screw is screwed into the receiving end of the second pipe, the slant wall forces the C-shaped ring, and thereby the giving end of the first pipe, to gradually advance. In the mean time, the bottom of the tubular screw presses the rubber washer tightly against the second pipe to effectively prevent leakage. | 12-11-2008 |
20090026764 | Press fitting for a tube - The press fitting for a tube, particularly for a plastic tube or a plastic/metal compound tube, comprises a fitting body ( | 01-29-2009 |
20100019494 | Tubing Configuration and Sealing Method for High Pressure Tubing on High Pressure Fuel Systems - This invention is directed to using a new method of sealing the high pressure at the tubing ends for the high-pressure fuel system on diesel and gasoline engines. One form of the invention of such a method is disclosed using a harder male fitting and a hard tube end and introducing a replaceable insert made out of a softer material of lower yield strength which will deform at both ends and seal the two mating harder components. This insert will be a throw away part to be replaced every time the system is serviced or repaired and the joint is broken. The cost for this insert is minimum and will reduce the fuel system service or repair cost saving money for the customer. | 01-28-2010 |
20100148501 | FERRULE ASSEMBLY FOR CONDUIT FITTING - Two conduit gripping devices that are to be used together in a conduit fitting assembly are interconnected or held together as a cartridge or subassembly prior to assembly with fitting components to form a fitting assembly. In a more specific embodiment, one or both of the conduit gripping devices comprises a retaining structure by which the devices are mechanically connected together as a subassembly. For example, in one embodiment a front ferrule and a back ferrule for a tube fitting may be snapped together. | 06-17-2010 |
20100194107 | TUBE FITTING - A ferrule type, flareless fitting is provided that includes a first fitting component ( | 08-05-2010 |
20100201124 | FITTING WITH BUSHING FOR CORRUGATED STAINLESS STEEL TUBING - A fitting incorporating a bushing for forming a seal between a length of corrugated tubing and the fitting, and methods of actuating the fitting and forming a seal using the fitting and tubing are provided. The tubing can be corrugated stainless steel tubing having a jacket that at least partially covers the tubing. The fitting includes a bushing having a substantially open configuration, the bushing configured to engage at least one corrugation groove. When a nut is advanced, the bushing applies pressure to the tubing to crush at least one initial corrugation to form a metal-to-metal seal that is gas and liquid tight. | 08-12-2010 |
20110049877 | FERRULE WITH RELIEF TO REDUCE GALLING - High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut. | 03-03-2011 |
20110095529 | COUPLING - A coupling for attaching to an end of a tube, pipe, conduit or other round solid or hollow section. The coupling includes an inner body and a collar to be provided around the inner body. The inner body has an interior bore passing through at least a portion thereof to receive a tube and the bore has one or more interior annular protuberances extending into the bore. When the collar is provided around the inner body it applies a circumferential compressive force to deform the inner body such that the one or more annular protuberances engage the tube or the like to seal with it. | 04-28-2011 |
20110215573 | Exhaust pipe connection structure and exhaust pipe connection method - An exhaust pipe connection structure for interconnecting a connection pipe and an exhaust pipe that are arranged in an exhaust system of an, internal combustion engine. Either of the connection pipe or the exhaust pipe is inserted into the other, and the portion where the connection pipe and the exhaust pipe overlap each other is radially deformed and swaged. | 09-08-2011 |
20110309616 | SANITARY HOSE COUPLING - A sanitary hose coupling ( | 12-22-2011 |
20120205910 | Fluid Fitting for Soft Tubing - A fluid fitting for attachment to a tube includes a cylindrical first sleeve having a tapered outer end surface and an inner surface defining an axial bore for receiving the tube. A cylindrical second sleeve creates an annular space for receiving the tube between the first and second sleeves when the second sleeve is placed within the axial bore. The axial bore has substantially equal diameter throughout. A swage ring has a tapered inner surface that axially swages the swage ring to the first sleeve, second sleeve and tube. A first sleeve shoulder restricts axial movement of the swage ring. A first portion protrudes from the inner surface of the first sleeve to restrict axial movement of the second sleeve. | 08-16-2012 |
20120280498 | AXIALLY SWAGED FITTING - Described is an improved axially swaged fitting for use in permanently coupling tubes together. The swaged fitting may be useful in coupling metal hydraulic lines to one another in an airplane or other applications, such as industrial hydraulic systems or other systems. According to one embodiment, the swaged fitting includes a sleeve with a hard metal surface and a swaging ring with a soft metal surface, such that during the swaging process the soft metal surface of the swaging ring is deformed. | 11-08-2012 |
20140062083 | Method For Reinforcing A Connection Tube Having An Expansion Part, And Connection Tube Having An Expansion Part Reinforced By Said Method - The present invention relates to a method for reinforcing a connection tube having an expansion part, and to a connection tube having an expansion part reinforced by said method, characterized in that, in the method, a reinforcing tube manufactured using a homogeneous or heterogeneous synthetic resin, which is mounted on the outer surface of one end of a tube body formed by extruding a synthetic resin, and said tube body, in which the expansion part is to be formed, are heated to the glass transition temperature thereof. Then, the end of the tube body is fitted and fixed into an external former mold for expansion within a range in which said reinforcing tube is mounted, and an expansion member is inserted into the tube body so as to expand and form the end of the tube body on which the reinforcing tube is mounted. The connection tube reinforced as described above is expanded while the reinforcing tube made of the resin material is mounted on the end of the tube body in which the expansion part is to be formed. Thus, the reinforcing tube supplements the expansion part, which is relatively thin, due to the extension thereof, so as to prevent the expansion part from being damaged by external impacts and to prevent a bent portion of the expansion part from being broken by internal or external pressure, such as soil pressure or water pressure. | 03-06-2014 |
20140145437 | Connector Unit and Connecting System for Connecting Capillaries, In Particular For High-Performance Liquid Chromatography - The invention relates to a connector unit for connecting capillaries, in particular for high-performance liquid chromatography, wherein a sealing element sealing the capillary protrudes at least partially into the interior of the capillary, while a portion of the sealing element that protrudes axially from the capillary can be subjected to a compressive force that is introduced via the capillary to obtain an axial or radial plastic and/or elastic deformation. | 05-29-2014 |
20140300107 | CRIMP CONNECTION ARRANGEMENT FOR PRESSURISED PIPES - A crimp connection arrangement for pressurised pipes with a compression sleeve and a pipe, wherein an end piece of the pipe is insertable into the compression sleeve and wherein by an application of an external force to a pressing portion of the compression sleeve, a connection is achievable between the compression sleeve and the end piece of the pipe. | 10-09-2014 |
20150137517 | PIPE JOINT CONSTRUCTION - To provide a pipe joint construction with which swift and strong connection is possible without flare work on an end portion when a pipe composed of aluminum, a pipe joint construction provided with a joint main body | 05-21-2015 |
20160195204 | FERRULE ASSEMBLY FOR CONDUIT FITTING | 07-07-2016 |
20160377203 | FERRULE WITH FEATURES FOR SOFTENING FERRULE CRUSH AND RELATED METHODS - A ferrule includes a body surrounding a bore that provides a fluid path along a central axis between a first end and a second end of the ferrule. The body includes a conical section configured for forming a sealing interface with a fitting in which the ferrule may be inserted and a sealing interface with a tube that may be inserted in the ferrule bore. The conical section includes collapse zones configured to collapse in a direction along the central axis in response to axial compression of the ferrule against the fitting. The collapse zones mitigate crushing of the ferrule against the tube. The collapse zones may be provided by a sealing region at the nose of the ferrule and annular grooves on the ferrule. | 12-29-2016 |
20220136633 | FITTING FOR CONNECTING PIPES, IN PARTICULAR FLEXIBLE PIPES - A fitting for connecting pipes, in particular flexible pipes, includes a first tubular element, provided with a first inlet/outlet opening and at its interior defining a first duct, and a second tubular element, provided with a second inlet/outlet opening and at its interior defining a second duct. The two tubular elements are connected together in a manner such that the first and second ducts are in communication. The first tubular element is provided with at least one through opening, between an external surface thereof facing outwards and an internal surface directed towards the first duct. The through opening defines a respective empty space between the external surface and the internal surface of the first tubular element. The fitting operates in an insertion condition, in which it allows a pipe to be fitted around said first tubular element, and a clamping condition, in which the pipe is pressed and stably locked on the first tubular element. In the clamping condition, the empty space defined by the through opening is occupied by a portion of the pipe pressed on the first tubular element. | 05-05-2022 |