| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 285374000 | Socket | 46 |
| 20090127852 | Three-Wall Corrugated Pipe Couplings and Methods - A coupling for three-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a portion of the corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a portion of the corrugated wall between an inner wall and an outer wall; and a gasket engaged between the corrugated wall of the bell portion and the outer wall of the spigot portion. A three-wall, corrugated pipe section, and method for assembling a plurality of three-wall, corrugated pipe sections, are also disclosed. | 05-21-2009 |
| 20090127853 | THREE-WALL CORRUGATED PIPE COUPLINGS AND METHODS - A coupling for three-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a bell portion of corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a spigot portion of corrugated wall between an inner wall and an outer wall; and a gasket disposed in a groove extending around a circumference of the spigot portion and engaged between the bell portion of corrugated wall and the spigot portion of corrugated wall. A three-wall, corrugated pipe section, and method for assembling a plurality of three-wall, corrugated pipe sections, are also disclosed. | 05-21-2009 |
| 20100181766 | INTEGRAL PIPE GASKET - A method and an annular integral gasket are provided for forming a sealing connection between a first tubular member and a second tubular member. The integral gasket comprises at least one flexible sealing portion adapted to form a sealing connection between a first tubular member and a second tubular member. The integral gasket further comprises a bonding layer adapted to be fixedly attached to a tubular member by a joining process. The integral gasket also comprises a body region adapted for supporting the flexible sealing portion and the bonding layer. | 07-22-2010 |
| 20100207386 | Lubeless Pipe Gasket And Method Of Fabrication - A thermoplastic pipe gasket fabricated of a thermoset material is provided having a first pipe engaging surface and an exterior surface, with the exterior surface having applied thereto a water-based, flexible, slip-coating. The slip-coating comprises polyurethane, a cross-linking agent, and a dispersion of a friction reducing compound. The friction reducing compound can be selected from a fluoropolymer, silicone, or graphite, either alone or in combinations thereof. Depending on the method of fabrication, the slip-coating can be sprayed onto the thermoset material after the thermoset material has been extruded, but before the extrudate's fabrication into a gasket. Alternatively, the slip-coating can be sprayed onto the gasket following its assembly. Still further, the slip-coating can be applied to the thermoset material by dipping the thermoset material into the water-based, flexible, slip-coating. | 08-19-2010 |
| 20100225111 | GASKET FOR BELL SOCKET - A gasket and a piping system using the gasket are disclosed. The gasket has an o-shaped body including an inner diameter and an outer diameter. The gasket further may include at least one gasket retaining bar attached to the body that bar prevents the gasket from being displaced while the spigot is being inserted into the gasket. The gasket may also include at least one restraining device attached to the body. The restraining device has at least one edge that extends beyond the inner diameter of the body of the gasket to engage the spigot. | 09-09-2010 |
| 20100244442 | Self Restrained Ductile Iron Fitting - A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. A ring-shaped body is installed within a mating groove provided in a mouth region of the as-cast fitting after the fitting has been cast at the manufacturing plant. The ring-shaped body is formed of an injection molded elastomeric material and carries a series of gripping segments which have teeth on an inner surface thereof which are designed to engage an outer surface of a mating male pipe. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening of the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The gripping segments have shelf regions which are mechanically secured to the elastomeric body of the gasket. The ring-shaped body also includes a relatively flexible portion formed of an elastomer which forms a lip seal region with the mating male pipe. | 09-30-2010 |
| 20110018263 | BAND CLAMP WITH EMBOSSED GASKET FOR SLOTTED PIPE LAP JOINTS - A band clamp used for forming a pipe lap joint. The band clamp includes a band, tightening mechanism, and gasket. The band extends circumferentially from a first end to a second end and is sized to fit over an outside pipe end. The tightening mechanism is connected to the band at the first and second end. The tightening mechanism includes at least one fastener to bring the first and second ends toward each other to tighten the band over the outside pipe end. The gasket is constructed to fit over an inside pipe end and within the outside pipe end such that the gasket is at least partially sandwiched between said inside and outside pipe ends. The gasket has an embossment extending radially outwardly from an outer surface of the gasket and being constructed to be received at least partly within a slot of the outside pipe end. | 01-27-2011 |
| 20110095528 | CONNECTOR FOR CONNECTING TO A STANDARDIZED LUER TAPER OR LUER-LOCK CONNECTION - A connector ( | 04-28-2011 |
| 20110198845 | BOX CULVERT GASKET SEAL - A gasket for use in a bell-and-spigot joint between adjacent concrete box culverts. The gasket includes a body portion having top and bottom surfaces and opposing longitudinal edges. A first protrusion extends from the top surface adjacent one longitudinal edge, and a second protrusion extends from the top surface adjacent the other longitudinal edge. A layer of pressure-sensitive adhesive covers at least a portion of the bottom surface. The protrusions provide sealing contact points between the box culverts. | 08-18-2011 |
| 20110241341 | EXHAUST PIPE FOR A MOTOR VEHICLE AND EXHAUST SYSTEM - Exhaust pipe for a motor vehicle, exhaust system of a motor vehicle, and radial seal for an exhaust pipe. The exhaust pipe includes at least one first end section having an insert region and at least one second end section having a receiving region. The at least one first and second end sections are connectable to one another in a gas-tight manner by inserting the insert region into the receiving end. A metallic radial seal is arranged between the insert region and the receiving region. | 10-06-2011 |
| 20110248497 | Pressure-Energized Probe Seal for Female Hydraulic Coupling Member - A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has an annular fluid chamber in at least one end of the body of the seal. Hydraulic fluid under pressure may enter the annular fluid chamber and exert a generally radial force in response to a pressure differential. This radial force can act to increase the sealing effectiveness of the probe seal to the body of the female coupling member having such a probe seal. | 10-13-2011 |
| 20110254266 | Self-restraining system for belled pipe - A restrainer for connection to the belled end of a female pipe or fitting. The restrainer has a groove for receiving a compressed, snap-fit gripping ring, constructed from two or more rigid segments joined by elastomeric segments. The gripping ring has rows of teeth on its inner circumference, shaped so the spigot end of a male pipe can be inserted through the restrainer into the belled end of the female pipe. The gripping ring restrains the male pipe from moving in an opposite direction when the system is pressurized. The coupler can be connected to the female pipe in several ways: it can be threaded onto a threaded lip of the pipe; a projection formed on its outer diameter or its inner diameter can be snap-fit into on onto the end of the female pipe; or it can be welded or fused onto the outer end of the female pipe. | 10-20-2011 |
| 20120025523 | QUICK JOINT IN HYDRAULIC PIPELINE - A quick joint in a hydraulic pipeline, more particularly, a quick pipeline joint applied to a hydraulic system, where frequent disconnection or connection of liquid pipelines is required. In one embodiment, the quick joint in the hydraulic pipeline includes an outer joint and an inner joint. The outer joint includes an oil pipe joint, O-rings, a block, a spring, a valve rod, a plunger, a joint sleeve and other parts. The inner joint includes a plurality of O-rings, a spring seat, a joint sleeve, a spring, an oil pipe joint and other parts. The outer joint and the inner joint can be connected or disconnected easily through insertion and pull-out of a circlip. | 02-02-2012 |
| 20120061956 | COUPLING DEVICE - The invention relates to a coupling device for a tube ( | 03-15-2012 |
| 20120091708 | BLOCK FITTING AND SEAL STRUCTURE - An air conditioner system fitting is disclosed including a first seal portion comprising a metal material adapted to provide a primary seal, and a second seal portion attached to a free edge of said first seal portion and adapted to provide a secondary seal, wherein the fitting militates against leakage during operation of the air conditioning system. | 04-19-2012 |
| 20120146329 | PIPE CONNECTION ARRANGEMENT - The invention relates to an arrangement for connecting pipe elements, comprising a first pipe element having at least one locking means arranged on the pipe inner wall, a second pipe element having an end section, wherein the second pipe element can be inserted into the first pipe at least in the region of the end section, a separate sealing means arranged at least in a part region of the end section to be completely surrounding its pipe outer wall, equipped to seal a connection between the first pipe element and the second pipe element, characterised in that the sealing means is equipped and designed at the same time as an arresting means to arrest the first and second pipe elements with each other while engaging the sealing means with the locking means. | 06-14-2012 |
| 20120153613 | CONNECTOR PART AND FLUID CONNECTION STRUCTURE - Connector part comprising a body part for connecting to a counterpart for creating a fluid tight seal when fitted together. The connector part also comprises a seal element made of resilient material and a space which is capable to receive the seal element made of resilient material when the fluid tight seal is made. The connector part can be used for forming a fluid tight connection structure. | 06-21-2012 |
| 20120326440 | PIPE COUPLING FOR CONNECTING TWO PIPE ENDS - The invention relates to a pipe coupling for connecting two pipe ends having two coupling parts which are partially mated. At least one annular groove having an inserted seal is in the contact region on the outer side of the male part and/or the inner side of the female part. The male part comprises an outer ring land and the female part comprises a shoulder enclosed by a coupling clip in a form-fit manner when the pipe coupling is closed. In order to design and refine the pipe coupling so that it is possible to provide a pipe having a coupling clip in combination for simplifying the operational procedure, an annular groove is provided on the outer side of the female part into which a guide tab disposed on the inner side of the coupling clip is inserted when the pipe coupling is closed. | 12-27-2012 |
| 20130049361 | PIPE CONNECTOR - A pipe connector including a connector body having a passage; a plurality of flexible pieces; a locking cap; a first stopping member; and a second stopping member. The plurality of flexible pieces is circumferentially disposed at one end of the passage. One end of each of the flexible pieces is fixedly connected to the connector body. The locking cap includes a first end close to the connector body and a second end opposite to the first end. A conical surface is formed on the internal wall of the second end. The conical surface coordinates with the external wall of the flexible pieces to lock the pipe. The first stopping member is disposed on the external wall of the connector body or the flexible pieces; and the second stopping member is disposed on the internal wall of the first end of the locking cap and coordinates with the first stopping member. | 02-28-2013 |
| 20130099488 | O-RING SHIELD SYSTEM AND METHOD - An O-ring shield system and method of protecting O-rings in a high pressure refrigerant system are disclosed. The system may include first and second pipes coupled together. An O-ring may be disposed on one of the pipes. A compressible shield ring may be positioned upstream a flow of refrigerant from the O-ring. | 04-25-2013 |
| 20130119659 | SINGLE AXIS PUSH TO CONNECT CONDUIT FITTING - A push to connect conduit fitting includes a first fitting component and a second fitting component and a releasable retaining structure for retaining the two fitting components in one or more retained axial positions as an unthreaded mechanical connection. In one of the retained axial positions a conduit may be inserted and a conduit retainer holds the conduit in position. A seal mechanism may also be provided to seal an outer surface of the conduit fitting assembly. Embodiments for a threaded mechanical connection are also disclosed. | 05-16-2013 |
| 20130134707 | PIPE COUPLING FOR THE FLUID-TIGHT ATTACHMENT OF COMPONENTS IN AN AIR CONDITIONING SYSTEM - Disclosed is a pipe coupling for joining a pipe arranged in a pipe section with a line formed in a line section in a fluid-carrying manner, wherein a fluid-tight seal is established for the pipe coupling by way of a sealing washer, wherein the sealing washer is comprised of a sealing ring and a support ring, wherein the sealing ring is made out of an elastic material and situated in a sealing space, which extends in a radial direction from an outer surface of the pipe section up to the support ring, and in an axial direction from a first contact surface that runs orthogonal to the outer surface up to a second contact surface ( | 05-30-2013 |
| 20130154260 | Coupling And Joint For Fixedly And Sealingly Securing Components To One Another - An assembly having a fitting body, a structure, a first seal element, and a grip ring. The fitting body has an insertion end that includes a mount and an abutting wall. The structure has an end that is received into the insertion end of the fitting body. The first seal element is received in the mount and sealingly engaged to the structure and the fitting body. The grip ring is received in the mount and includes a ring body and a plurality of first teeth that are resiliently coupled to a ring body. The first teeth are engaged to the end of the structure and the ring body abuts the abutting wall. | 06-20-2013 |
| 20130264820 | DEVICE AND METHOD FOR PRODUCING THE MOUTHS OF BIAXIALLY ORIENTED PLASTIC TUBES WITH INTEGRATED SEALING GASKETS - The apparatus comprises a first sector wherethrough is introduced the biaxially oriented pipe and the gasket, a second sector, with diameter greater than that of the first sector, and a third sector, concentric to the second sector. The first sector is formed by at least three segments separated by isolating washers, so that at least two of said segments of the first sector, the second sector and the third sector are connected to means of heating and/or means of cooling regulated by a control unit which allows the selective and independent variation of the temperature of said segments and sectors and therefore of the pipe to favour the modelling of the socket with the integral gasket avoiding the disorientation of the pipe. | 10-10-2013 |
| 20130277965 | CYLINDRICAL GASKET, METHOD FOR MANUFACTURING THE SAME, AND INSERTION-TYPE EXHAUST PIPE JOINT USING THE CYLINDRICAL GASKET - In a cylindrical gasket | 10-24-2013 |
| 20140021719 | Press Fitting and Joint Assembly With Such a Press Fitting - A press fitting comprises a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least two weakening features, in particular in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D | 01-23-2014 |
| 20140035282 | PIPE JOINT - An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part. | 02-06-2014 |
| 20140084583 | CONNECTORS MANUFACTURED BY THREE-DIMENSIONAL PRINTING - A hollow conduit is provided. In another aspect, a quick connector, suitable to carry fluid therethrough, is made of layers of material, a light curable material and/or multiple built-up materials. Another aspect uses a three-dimensional printing machine to emit material from an ink jet printing head to build up a conduit. | 03-27-2014 |
| 20140159363 | Pressure-Energized Probe Seal for Female Hydraulic Coupling Member - A probe seal for a female hydraulic coupling member has both internal and external pressure-energized seals. The outer wall or opposing ends of the seal have one or more pressure-energized seals for sealing between the body of the probe seal and the body of a coupling member in which the probe seal is installed. Annular, L-shaped, T-shaped or angled grooves in the inner wall of the seal form cavities and sealing projections that can be urged in an inward, radial direction by fluid pressure within an associated cavity to increase the sealing effectiveness between the body of the seal and the probe of a male hydraulic coupling member inserted in the receiving chamber of the female coupling member. | 06-12-2014 |
| 20140191504 | PVC-Coated and Adaptive Pipe Coupling - This practical patent product relates to a pipe coupling, namely, a PVC-coated and adaptive pipe coupling. Its construction consists of male port and female port for interfacing purpose. The female port is configured with gasket-inserting groove. The gasket and male port are jointed through excessive interfacing. Compared with available technology, the practical patent product features simple construction, easy installation, firm connection and no damage to the coating layer thereof. | 07-10-2014 |
| 20140203554 | PIPE JOINT - An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part. | 07-24-2014 |
| 20140333066 | BUSHINGS, SEALING DEVICES, TUBING, AND METHODS OF INSTALLING TUBING - One aspect of the invention provides a bushing including a first annular internal rib adapted and configured to engage a corrugation valley of corrugated tubing and a second annular internal rib adapted and configured to press against a conductive layer surrounding the corrugated tubing. The second annular internal protrusion has a rounded, substantially non-piercing profile. Another aspect of the invention provides a sealing device for connecting a length of tubing. The sealing device includes a body member defining a sleeve portion and the bushing as described herein adapted and configured to be received in the sleeve portion. Another aspect of the invention provides a length of tubing including: an inner tubing layer and the fitting as described herein engaged with the inner tubing layer. | 11-13-2014 |
| 20140353968 | POSITIONING MECHANISM AND EXPANSION ASSEMBLY THEREOF - An expansion assembly includes a connecting plug, a deformable sealing sleeve, and an expansion sleeve. The connecting plug defines a through hole configured for air flow to pass therethrough. The deformable sealing sleeve is sleeved on the connecting plug. The expansion sleeve houses the deformable sealing sleeve and is sleeved on the connecting plug. The expansion sleeve comprises a number of resilient arms separated from each other. When airflow is introduced into the deformable sealing sleeve via the connecting plug, the deformable sealing sleeve is expanded, causing the number of resilient arms of the expansion sleeve to expand outward. A positioning mechanism employing the expansion assembly is also disclosed. | 12-04-2014 |
| 20150076817 | COMPOSITE SLIDING GASKET FOR HIGH-PRESSURE JOINTS - A composite sliding gasket for joints of high-pressure pipes is basically formed by a rubber part and by a rigid ring—having the function of flange—that is designed to draw the gasket itself from a resting position or seat to a working position or seat by an external pipe or hole that is axially fitted on an internal pipe or barbed fitting. Compression of the rubber part of the gasket, which guarantees fluid tightness, is obtained thanks to the presence of a purposely provided conical area pre-arranged on the barbed fitting between the resting seat and the working seat. The gasket includes a rubber ring fixedly coupled to a coaxial flange made of rigid material of plastic or metal or other suitable material, the gasket being designed to seal a coupling with play between the internal pipe and the hole within which a pressurized fluid can flow. | 03-19-2015 |
| 20150308594 | COUPLING DEVICE FOR A TUBE - The invention relates to a coupling device for coupling with a tube, comprising at least one pressure element for exerting a clamping force on the tube, wherein the said at least one pressure element is one of a series of correspondingly embodied neighboring pressure elements, wherein each pressure element of said series comprises a first pressure element segment and a second pressure element segment, and wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube, and that of each pressure element the first pressure element segment is provided with a protrusion extending transversely to the longitudinal direction of the tube, and that said protrusion extends into a slit that is provided in a directly neighboring second pressure element segment that forms part of a neighboring pressure element. | 10-29-2015 |
| 20160069496 | PIPE CONNECTOR - A retainer is equipped with a regulation segment, which regulates the position of an O-ring placed in an insertion hole, and a prevention segment, which engages with a spool of a pipe and prevents the pipe from being removed from the insertion hole. Moreover, by moving the retainer toward the minus side in the Y direction and attaching it to an attachment segment, the retainer becomes sandwiched between an opposing wall portion and a tube segment in the X direction. Because of this, the number of parts can be reduced and the retainer that regulates the position of the O-ring can be prevented from being moved in the X direction by the pressure of fluid flowing inside the pipe connector in the X direction. | 03-10-2016 |
| 20160102790 | PIPE JOINT - An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part. | 04-14-2016 |
| 20160138743 | METHODS AND ASSEMBLIES FOR WELDING A GASKET TO A PIPE SECTION - The present disclosure is directed to a method of welding a gasket to a spigot portion of a pipe section. The method includes supporting the gasket in a recess on the spigot portion of the pipe section. The gasket includes a seating portion and a sealing portion. The sealing portion includes a first shoulder portion and a second shoulder portion. A first bonding portion extends from the first shoulder portion and a second bonding portion extends from the second shoulder portion. The first bonding portion and the second bonding portion are provided to bond the gasket to the spigot portion. The method further includes heating a portion of the gasket and an adjacent surface of the spigot portion and applying a force onto the portion of the gasket following the application of heat to fuse the gasket onto the spigot portion. | 05-19-2016 |
| 20180023742 | Connectors For Sleeved Pipe Couplings | 01-25-2018 |
| 285375000 | Internal reciprocating packer | 2 |
| 20090026763 | Sliding Sealing Connector - Two gas conduits of different sizes are connected in a sliding arrangement using a combination of a seal and a bushing, each independently made from knitted wire mesh or wound wire. If a mesh is used, it can be impregnated with a filler, such as mica or graphite, for increased density. Especially useful for vehicle exhaust systems, the arrangement facilitates the use of after-market parts that may have different dimensions than OEM parts. This design slidably connects two gas conduits of different sizes and/or geometries. | 01-29-2009 |
| 20140152003 | REUSABLE FITTING FOR ATTACHING A CONDUIT TO A PORT - Described is a reusable fitting for attaching a conduit to a port. The fitting includes a housing, a spring, a retainer and cap. The retainer is capable of locking and unlocking a conduit in the fitting. The fitting provides a high pressure fluid-tight seal and a substantially zero void volume at the junction of two fluidic conduits. The fitting is removable, reusable and replaceable, and allows a user to make and remake connections of a capillary to a fluidic port without permanently binding a ferrule to a specific capillary and thus to a specific port. The fitting can be replaced if part or all of the fitting is damaged during use. | 06-05-2014 |
| 285376000 | Lugged pipe, rotary engagement | 5 |
| 20130076031 | QUICK CONNECTOR HAVING ANTI-DISENGAGEMENT STRUCTURE - A quick connector having an anti-disengagement structure includes a first body, a second body and a locking member. The locking member is connected to one end of the first body and stopped by an oil seal. The second body is connected to the first body and the locking member is fitted on the second body. A locking block of the locking member is engaged in a locking recess of the second body to complete the assembly of the first body, the second body and the locking member. Particularly, the locking recess of the present invention has an anti-disengagement design to prevent any unexpected disengagement and to ensure the connection of the connector. | 03-28-2013 |
| 285377000 | With manipulating ring | 4 |
| 20090152866 | SPIGOT-AND-SOCKET JOINT - The present invention relates to a spigot-and-socket joint for connecting two pipes, pipe fittings or the like, comprising a socket end ( | 06-18-2009 |
| 20110193342 | HOSE COUPLING - The invention discloses a hose coupling ( | 08-11-2011 |
| 20120074695 | PIPE CONNECTOR - A pipe connector not only allows a flexible pipe (like PEX pipe) easy to enter, but also ensures the sealing of socket and holding of pipe connection when the pipe is injected with liquid and gets pressurized to expand, the pipe connector includes a socket body in which in the direction of pipe entry, configuring in sequence: grab ring, retainer and O-shaped sealing ring; when pipe enters the socket, flange arranged on the grab ring is deflected; when the pipe is injected with liquid and gets pressurized to expand, the O-shaped sealing ring is compressed and expands axially, then the O-shaped sealing ring pushes the retainer, so as to push the grab ring to move in reverse direction of pipe entry, thus locking the pipe. | 03-29-2012 |
| 20130099489 | Aseptic Coupling Devices - A seal member for an aseptic coupling device includes a cross-sectional area including a first end portion, a middle portion, and a second end portion opposite the first end portion, the middle portion being thinner in radial dimension than the first and second end portions. | 04-25-2013 |
