| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 285337000 | Externally with clamp | 55 |
| 20080272595 | Mechanical Pipe Coupling Having Spacers - A mechanical pipe coupling is disclosed having an arcuate band with first and second ends in facing relation. A hinge is positioned between the first and second ends allowing the ends to move relatively to one another. Connection members are mounted on the ends, and a spacer is positioned between the ends to maintain the ends in spaced apart relation sufficient to allow end portions of a pipe to be inserted between arcuate surfaces which extend radially inwardly from the band. The spacer is configured to allow for tightening of the connection members to draw the ends together and permit the arcuate surfaces to engage the outer surfaces of the pipe elements and form a joint. | 11-06-2008 |
| 20080284166 | Ductile iron pressure fix gasket - A sealing gasket is shown for use in a ductile iron piping system to form a sealed joint between mating male and female pipe ends. A sealing gasket body is provided with a series of retainer inserts which extend outwardly from a leading nose region of the elastomeric gasket body. The mating male pipe end contacts the retainer inserts prior to contacting the remainder of the gasket body during the make up of the pipe joint. The inserts help to retain the gasket within its associated groove during high pressure field conditions. The inserts are spaced circumferentially about the gasket nose region, allowing the gasket the necessary flexibility to allow insertion within the groove provided in the female, belled pipe end. | 11-20-2008 |
| 20090273184 | SELF RESTRAINED JOINT FOR DUCTILE IRON PIPE AND FITTINGS - A combination sealing and restraint system for an as-cast ductile iron pipe systems. A ductile iron pipe/fitting with a bell end has an as-cast profile formed therein for receiving both a gripping ring and a sealing ring in spaced apart locations. The gripping ring is installed within a first recess provided as a part of the as-cast profile in a post-casting step. The sealing ring is also installed within a second, spaced recess after the casting operation is complete. The sealing ring can be a dual durometer gasket which can be flexed and inserted into the profile. The same type bell end can be provided as an adapter which converts a traditional mechanical joint restraint to an internal gripping and restrain system. | 11-05-2009 |
| 20090295154 | FLEXIBLE CAPTIVE FLANGE HOSE CONNECTION AND METHOD - A flange hose fitting assembly and method wherein a captive flange is attached to a flexible hose nipple after the nipple has been crimped to the flexible hose. The flange, which may be selected from different types of flanges, is slipped over the front end of the nipple that is crimped at its back end to the flexible hose, and then locked to the nipple by a suitable retaining device, such as a retaining ring, spring, screw-on or glue-on ring, press-fit ring, piston-ring, shaft seal, U-shaped halves or other split configurations arranged around a locking groove in the nipple, etc. | 12-03-2009 |
| 20090302601 | PIPE COUPLING DEVICE - The present invention is embodied in a pipe coupling device for joining two pipe segments including a cylindrically shaped gasket for receiving the pipe segments and a cylindrically shaped clamp having a first and second semi-cylindrical segment attached by a hinge that extends along a length of one side each segment parallel to the axis of the cylinder. The clamp includes an inner wall having at least one groove forming a channel aligned in each of the semi-cylindrical segments and extending about the circumference of the inner wall of the clamp. A second side of the semi-cylindrical segments includes flanges that extend radially away from the segments. The flanges include complementary apertures and bolts that are received through the apertures for sealing the flanges together. The semi-cylindrical segments are movable about the hinge between an open position and a closed position, wherein the pipe segments are received in opposing ends of the gasket and the clamp is open to receive the pipe segments a gasket combination and then closed about the gasket pipes and secured about the gasket for a sealing engagement by the bolts. | 12-10-2009 |
| 20090322077 | RADIUS CONTROL - A method and apparatus are disclosed for providing an outer collar member of an end fitting for a flexible pipe. The apparatus comprises an outer collar body portion and an outer collar neck portion extending away from the outer collar body portion. The neck portion is arranged to be secured to a portion of flexible pipe body in a slotted position between layers of the flexible pipe body. The position is located between an outer sheath of the flexible pipe body and at least one armour layer of the flexible pipe body wherein the outer collar body portion comprises a curved inner surface region for determining a radius of curvature of wires of the armour layer bent away from an axis of the flexible pipe bodies and supported by the curved inner surface when the pipe body is mounted in the end fitting. | 12-31-2009 |
| 20100001521 | SLIP ON GROOVE COUPLING WITH MULTIPLE SEALING GASKET - Methods, gaskets, and couplings for connecting two pipes are disclosed. One embodiment of the method includes the steps of placing the assembled coupling over one end of a pipe, aligning the second pipe with the first pipe, sliding the coupling off the end of the first pipe so that a portion of the coupling is around each pipe, and securing the coupling. | 01-07-2010 |
| 20100038902 | Tube Coupling and Related Methods - A juncture assembly is provided between first and second ends of respective first and second tubes. The assembly includes a first flange that is located at the first end and a second flange that is located at the second end, with the second flange being in confronting relationship with the first flange. The first and second flanges define a gap between them. A gasket member contacts the first and second flanges and is configured to prevent flow of fluids through the gap. A clamp member of the assembly secures the gasket member to the first and second flanges with the clamp member including a channel for receiving the first and second flanges and first and second restriction elements that extend into the channel for positioning the first and second flanges within the channel. | 02-18-2010 |
| 20100301602 | INTERFITTING TUBULAR MEMBERS - An arrangement for fixing two concentric tubes ( | 12-02-2010 |
| 20110025053 | PIPE COUPLING - A pipe coupling with an anchoring arrangement for locking the pipes together axially is described. The anchoring arrangement comprises a tubular casing ( | 02-03-2011 |
| 20110037257 | BREECH LOCK COUPLING - There is provided a breech lock coupling for coupling riser sections together. The breech lock coupling may be used non-pre-loaded or pre-loaded according to the user's preferences. In addition, the breech lock coupling may be disassembled for inspection and maintenance and reassembled. A locking ring secures two coupling components together. The coupling components may be attached to opposite ends of the riser sections, such as via welding. The locking ring may be pre-attached to the first coupling component for easy storage and fast assembly. Assembly of the riser may be accomplished by inserting the second coupling component into the locking ring and the first coupling component, then rotating the locking ring with respect to the second component. Furthermore, the coupling may be pre-loaded by tightening fasteners on the locking ring to provide a more stable coupling. Unlike with traditional riser couplings, the pre-load fasteners may be tightened via hand-held tools. | 02-17-2011 |
| 20110049874 | Polymeric pipe fitting and gasket assembly and sealed polymeric pipe apparatus formed therewith - A polymeric pipe fitting assembly for joinder with a polymeric pipe section without using adhesives or other chemicals comprises a polymeric fitting and an elastomeric gasket formed as a unit, preferably by molding. The fitting has a main body portion with a pipe-receiving socket portion at one end. The gasket has a first axial portion molded in intimate sealed surface engagement interiorly within the socket portion and a second integral axial portion projecting axially from the socket portion. The axial portions of the gasket form a continuous interior wall surface for receiving a polymeric pipe section in peripheral surface contact with an exterior surface of the pipe section. The second axial portion of the gasket is encircled by a mechanical clamping device for sealing the gasket against the exterior of the pipe section. | 03-03-2011 |
| 20110084484 | SELF-RESTRAINED PIPE JOINT SYSTEM AND METHOD OF ASSEMBLY - A self-restrained pipe joint system and method of assembly to connect two lengths of pipe in a mechanical joint, which maximizes the advantages of both restrained push-on joints as well as mechanical joints, as are known commonly in the art. The invention has application to long-run pipe lengths as well as to appurtenances, including fittings and connections. The gasket contains locking members that act to restrain separation upon the instance of any force tending to separate the connected pipe lengths. | 04-14-2011 |
| 20110210546 | PIPE CLAMP WITH SLEEVE AND GASKET - A pipe clamp that includes a band, tightening mechanism for the band, a split sleeve within the band, and gasket located inside a circumferential channel in the split sleeve. The split sleeve includes a tongue-and-groove joint in which said tongue has at least one side edge that confronts and engages a side edge of the groove during penetration of the tongue into the groove in response to tightening of the outer band using the fastening mechanism. This provides a metal-to-metal seal at the tongue-and-groove join. The relative construction of the tongue and groove is such that during penetration of the tongue into the groove, there are areas of spaced separation between the confronting side edges of the tongue and groove. Also during tightening the gasket is forced into these areas of spaced separation which provides a second, gasketed seal at the tongue-and-groove joint. | 09-01-2011 |
| 20110221189 | PIPE COUPLING HAVING MOVABLE GRIPPING BODIES - A coupling for securing pipe elements together in end-to-end relation has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segments. The gripping bodies are arranged opposite to each other. The segments have angularly oriented reaction surfaces on the connection members. The gripping bodies have angularly oriented contact surfaces which interface with the reaction surfaces. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping bodies radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping bodies engage and retain the pipe elements. | 09-15-2011 |
| 20110272941 | PIPE JOINT AND SEAL WITH BAND CLAMP - First and second exhaust system pipes in one of several embodiments are joined in a fixed fluid tight joint comprising a first flared flange on a first pipe and a flared flange portion on a second pipe. The flange portion is part of a second flange on the second pipe spaced from the second pipe end edge forming a pipe segment forming a corner with the second flange. A seal is between the two flanges abutting the second pipe segment. The first flange has a convex spherical outer surface and a concave inner spherical surface engaged with a first outer convex spherical surface portion of the seal, the radius of the flange inner surface is larger than the radius of the seal first outer surface portion forming a first tangential engaged contact point. A band clamp has two depending legs which respectively engage the first flared flange of the first pipe and the second pipe flared flange portion for forcing the flanges and pipes together and against the seal. A first clamp leg engages the first flange outer convex spherical surface at a second tangential contact point. The other conical leg of the clamp engages the second pipe flared flange portion. The two tangential contact points define a plane normal to the corresponding engaged surfaces providing enhanced stress concentration from the clamp to the pipes via the first flange and seal. | 11-10-2011 |
| 20120018999 | GASKETED PIPE CLAMP - A pipe clamp that includes a band having an inner surface defining a first channel segment located inwardly of first and second axial ends of the band, a tightening mechanism for drawing first and second circumferential ends of the band toward each other to tighten the band, and a bridge abutting the inner surface and circumferentially spanning a break in the first channel segment that is located at the tightening mechanism, The bridge has a second channel segment aligned with the first channel segment such that the first and second channel segments together define a substantially continuous circular channel located at an interior portion of the clamp. The pipe clamp further includes a gasket seated at least partially within the channel. The bridge can be attached to a reaction block used in the tightening mechanism to maintain proper position during tightening of the band. | 01-26-2012 |
| 20120112454 | PIPE COUPLING WITH TEETHED INSERTS, METHOD OF SECURING TEETHED INSERTS, AND METHOD OF COUPLING PIPING - A coupling for joining plan end pipe having a housing made from a casting with a pocket disposed in the casting. The pockets holds an insert that engages the plain end pipe, and the insert is secured to the housing without the use of machined features on the housing or the use of additional components or adhesives to secure the insert to the housing. In a preferred embodiment, each insert is disposed in a pocket on the inner surface of the coupling assembly, with projections extending from the inner surface disposed within cavities on opposing sides of each insert to retain the insert within the pocket by obstructing the opening to the pocket. A preferred device and method of forming the projections is a press that deforms the projections to retain the inserts in the pockets. | 05-10-2012 |
| 20120112455 | MECHANICAL FASTENER FOR CLAMP - A pipe coupling including an annular clamp having an opening at at least one end of its axial length for inserting therein a pipe, the annular clamp including two clamp members, an annular seal disposed in the annular clamp, and a mechanical fastener that includes a threaded shaft with a washer flange, the washer flange having a lower rim, wherein when nuts are tightened on both ends of the threaded shaft, the lower rim bites into the annular seal. | 05-10-2012 |
| 20120146328 | PIPE CLAMP ASSEMBLY WITH TIGHTENING ELEMENT KEEPER - A pipe clamp assembly including a band having an inner annular seal element wrappable around a pipe, opposing clamp members extending from the band, tightening elements for clamping together the clamp members, the tightening elements passing through holders located at ends of the clamp members, and a keeper fastened to one of the holders at a first end of at least one of the tightening elements, the keeper having a cover portion that lies over the first end. | 06-14-2012 |
| 20120187677 | CONNECTING ASSEMBLY AND METHOD FOR PRODUCING A CONNECTING ASSEMBLY - Connecting assembly and method of forming connection assembly. Connection assembly includes two pipe end sections arranged to face each other, a profiled clamp including a clamping band with a base and two tilted side walls with ends, and at least one perimeter pleat projecting outwards on each of the pipe end sections. The side walls are engagable with the pleats on sides of the pleats facing away from one another. | 07-26-2012 |
| 20120205909 | Split-Ring Gland Pipe Coupling with Corrugated Armor - A pipe coupling for coupling adjacent ends of a pair of pipes includes a sleeve, a split-ring gland positioned around one of the ends of the sleeve, and at least one annular gasket positioned within the split-ring gland and configured to be compressed by the split-ring gland for sealing one pipe end to the sleeve. The split-ring gland includes two partially circular gland members with spaced ends defining a gap. The pipe coupling includes an armor positioned to span the gap between the spaced ends to provide a generally closed annular periphery about the gasket. The armor includes a corrugated portion having a plurality of corrugations engaging the split-ring gland and the gasket during compression of the gasket. The armor is cold formed to improve structural strength and durability. | 08-16-2012 |
| 20120235405 | Pipe Coupling Having Movable Gripping Bodies - A coupling for securing pipe elements together in end-to-end relation is disclosed. The coupling has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segments. The gripping bodies are arranged opposite to each other. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping bodies radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping bodies engage and retain the pipe elements. | 09-20-2012 |
| 20120242083 | PIPE COUPLING - A pipe coupling that clamps onto an area adjacent the ends of abutting pipes. The pipe coupling includes first and second clamp members, and a fastener. The first clamp member is hinged to the second clamp member. Both the first and second clamp members are configured to pivotally wrap around a pipe. Each of the first and second clamp members also includes an arched hub portion configured such that when each of the clamp members engages each other the arched hub portions form an arcuate hub. The fastener is configured to couple the arched hub portions together thereby preventing the clamp members from opening. | 09-27-2012 |
| 20120256415 | Pivoting Pipe Coupling Having a Movable Gripping Body - A coupling for securing pipe elements together in end-to-end relation has segments joined at one end by a pivot attachment and at an opposite end by an adjustable connection member. The segments surround a central space which receives the pipe elements. A gripping body is captured between the segments. The segments have angularly oriented reaction surfaces. The gripping body has angularly oriented contact surfaces which interface with the reaction surfaces. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping body radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping body engage and retain the pipe elements. A method of inserting pipe elements into the coupling while the segments and the gripping body are supported on a seal is also disclosed. | 10-11-2012 |
| 20120280494 | SLIP ON GROOVE COUPLING WITH MULTIPLE SEALING GASKET - Couplings and gaskets are disclosed. Couplings may include an upper housing, a lower housing, at least one fastening device coupling the upper housing to the lower housing, and a gasket positioned within the upper and lower housings, the gasket including two primary seals and a rib protruding from an inner surface of the gasket and between the two primary seals. | 11-08-2012 |
| 20120299293 | ASSEMBLY WITH SEPARATELY TIGHTENABLE ANNULAR CLAMPS - An improved clamp assembly that has two adjacent annular clamps and the user has the choice of tightening just one of them or both of them. | 11-29-2012 |
| 20120299294 | MULTILAYER ANNULAR CLAMP - A multilayer annular clamp including a plurality of sealing rings radially spaced from one another, at least two of the sealing rings including L-shaped axial-plane cross-sections nested in one another, an innermost one of the sealing rings being operative to contact an outer contour of the pipe, two clamp members disposed around a portion of the sealing rings, and a fastener, including a shank, operative to fasten the clamp members towards each other in a direction along the shank so as to apply a radially-inward clamping force on the innermost sealing ring that contacts the pipe so that the multilayer annular clamp clamps the pipe. | 11-29-2012 |
| 20120299295 | CLAMP ASSEMBLY WITH RESILIENT BAND HAVING NOTCHES - A clamp assembly including a curved resilient band terminating in a radial direction in two clamp members and in an axial direction in two end faces that are bent radially inwards, the resilient band being adapted to receive therein an elastomeric seal that contacts an outer contour of a pipe, wherein the end faces are formed with a plurality of notches, each of the notches having an open end facing radially inwards and a closed end opposite to the open end, the closed end being wider than the open end. | 11-29-2012 |
| 20120313368 | PIPE JOINT RESTRAINT APPARATUS AND METHOD - A pipe joint restraint apparatus and method according to which an arcuate member is clamped onto a pipe so that a protrusion or ridge penetratingly engages the outside surface of the pipe. | 12-13-2012 |
| 20130009395 | SANITARY CLAMP WITH RADIAL SEAL - A coupler utilizes a conventional sanitary clamp member | 01-10-2013 |
| 20130119658 | SPLIT-RING GLAND PIPE COUPLING WITH CORRUGATED ARMOR - A pipe coupling for coupling adjacent ends of a pair of pipes includes a sleeve, a split-ring gland positioned around one of the ends of the sleeve, and at least one annular gasket positioned within the split-ring gland and configured to be compressed by the split-ring gland for sealing one pipe end to the sleeve. The split-ring gland includes two partially circular gland members with spaced ends defining a gap, and abutting ends configured to be bolted together via apertures tangential to the gland members so as to avoid outward scissoring. | 05-16-2013 |
| 20130154259 | CLAMP ASSEMBLY WITH ANNULAR CLAMPS AND BRIDGE - An improved clamp assembly that has two adjacent annular clamps and the user has the choice of tightening just one of them or both of them. A bridge element is provided that presses against one or more sealing rings when tightening the annular clamp. | 06-20-2013 |
| 20130181443 | RAPID LEAKAGE-PROOF STRUCTURE FOR TUBES - A rapid leakage-proof structure for tubes covers an outer surface of a tube and contains an inner soft layer with a first hardness attached to the outer surface of the tube, an outer hard layer with a second hardness covering a surface at one side of the inner soft layer that is far away from the tube, and a clamping assembly. The first hardness is smaller than 60 degrees at Shore Hardness, and the second hardness is greater than the first hardness. The clamping assembly is disposed at one side of the outer hard layer that is far away from the tube to clamp the tube via the outer hard layer and inner soft layer. Thereby, the inner soft layer covers the surface of the tube to obtain high sealing, and the outer hard layer then covers the inner soft layer to prevent leakage caused by insufficient sealing pressure. | 07-18-2013 |
| 20130181444 | Splicing ring for tubular high-pressure fluid conduits - A splicing ring for tubular high-pressure fluid conduits includes an inner metal ring formed of two independent and identical band halves having side edges. The side edges are folded downwards at a right angle and are configured as positioning and retaining elements of an O-ring. The O-ring rests upon the ends of the two tubular conduits to be spliced. | 07-18-2013 |
| 20130181445 | FITTING FOR JACKETED CONDUITS - A conduit fitting includes a conduit connecting device, a jacket sealing device, and a venting device. The conduit connecting device grips and seals against an unjacketed portion of a metal conduit when the conduit connecting device is assembled on the metal conduit. The jacket sealing device can be joined with at least one of the metal conduit and the conduit connecting device to seal against a jacketed portion of the metal conduit, to at least partially define a cavity between the conduit connecting device and the jacketed portion of the conduit. The venting device is configured to move from a sealing position to a venting position to vent pressure in the cavity. | 07-18-2013 |
| 20130187379 | SLIP-ON COUPLING - A coupling includes at least one segment, each segment including at least one inner surface, at least one outer surface, at least two ends, and a fastener pad protruding proximate to each end, each fastener pad defining a fastener hole, each fastener hole having an axial length and a transverse length, wherein the transverse length is longer than the axial length; an annular gasket contacting the inner surface of at least one segment, the annular gasket including at least one sealing surface directed radially inwardly and an outer surface directed radially outwardly; and at least one fastener disposed within at least one fastener hole, each fastener including a head portion and a shaft portion, each shaft portion including at least one of a threaded portion, a shank portion, and a collar portion, wherein at least one portion of the shaft portion is sized to engage at least one fastener hole. | 07-25-2013 |
| 20130193685 | SPLIT-RING GLAND PIPE COUPLING WITH CORRUGATED ARMOR AND ANNULAR GASKET HAVING PRESSURE ASSIST SLOT - A pipe coupling for coupling adjacent ends of a pair of pipes includes a sleeve, a split-ring gland positioned around one of the ends of the sleeve, and an annular gasket positioned within the split-ring gland and configured to be compressed by the split-ring gland for sealing one pipe end to the sleeve. The split-ring gland includes two partially circular gland members with spaced ends defining a gap, which is spanned by an armor positioned in the gap to provide a generally closed annular periphery about the gasket. The armor includes a corrugated portion engaging the gasket during compression. The gasket includes a pressure assist slot configured to receive pressurized fluid leaking from the pipes and a plurality of cross grooves ensuring continued fluid communication with the pressure assist slot. The gasket also includes ribs engaging the split-ring gland and the armor to reduce or eliminate added lubrication necessary. | 08-01-2013 |
| 20130307264 | WATER SYSTEMS - A sealing member and a preemptive system and a preemptive method of preventing or stopping a primary joint leak between a pipe and a pipe fitting by securing a sealing ring to the pipe and the pipe fitting to form a secondary joint that inhibits or prevent leakage between the primary joint between the pipe and the pipe fitting without knowing if the primary joint is faulty. | 11-21-2013 |
| 20130328305 | SEAL HOLDING DEVICE FOR PIPE CLAMP - A pipe clamp including an annular clamp housing having an opening for inserting therein a pipe, opposing clamp members located near ends of the annular clamp housing, one or more tightening elements for fastening and tightening the clamp members towards each other in a direction transverse to an axial length of the annular clamp housing, and an annular seal placed in an inner perimeter of the annular clamp housing, wherein one portion of the annular seal is attached to the annular clamp housing with one or more mechanical fasteners and another portion of the annular seal is slidingly attached to the annular clamp housing with one or more mechanical fasteners so that the annular seal is permitted to move and expand radially about as the pipe clamp is tightened by one or more tightening elements. | 12-12-2013 |
| 20140001753 | SLIP ON GROOVE COUPLING WITH MULTIPLE SEALING GASKET | 01-02-2014 |
| 20140070529 | Coupling With Notched Projections Having Gasket Pocket of Varying Depth - A mechanical coupling for joining pipe elements has segments joined end to end, each segment having a pocket of varying depth for receiving a ring gasket. The varying depth of the pocket is used to control the distortion of the ring gasket between a round shape and a non-round shape when the segments are arranged in spaced apart relation around the ring gasket, the spacing between the segments being sufficient to permit insertion of the pipe elements without disassembly of the coupling. Notches in the projections which engage the pipe elements facilitate insertion of pipe elements and provide for a compact coupling design. | 03-13-2014 |
| 20140167409 | JOINTED BRIDGE FOR CLAMP ASSEMBLY - An accessory for a clamp assembly including a clamp bridge including a plurality of curved bridge elements attached to one another by a joint that permits relative motion between neighboring bridge elements. | 06-19-2014 |
| 20140246852 | Combination Sealing Member and Pipe Couplings - A sealing member is disclosed having an outer surface that supports segments of a pipe coupling for joining pipe elements in end to end relation. The segments are supported in spaced relation to permit the pipe elements to be inserted into the coupling without disassembly. The sealing member is a flexible ring that has conical lips around its inner circumference to engage and guide the pipe elements into the coupling. A tongue extends radially inwardly between the lips, the tongue having conical shoulders which engage and guide the pipe ends. The tongue locates the coupling segments relatively to the pipe elements. | 09-04-2014 |
| 20140319826 | COUPLING FOR RANGE OF PIPE DIAMETERS - A pipe coupling includes an annular clamp housing that has ends which are provided with two opposing clamp members. One or more tightening elements tighten the clamp members towards each other in a direction transverse to an axial length of the annular clamp housing so as to apply a radially-inward clamping force on a pipe being clamped in the annular clamp housing. An annular seal is mounted in a tightening chamber with borders defined by inner walls of the annular clamp housing and an inner abutment. The tightening chamber has a single annular opening that faces radially inwards. Upon sufficient tightening of the one or more tightening elements, the annular seal cannot expand against the borders of the tightening chamber and can only expand radially inwards through the single annular opening. | 10-30-2014 |
| 20150021910 | SPLIT-RING GLAND PIPE COUPLING WITH CORRUGATED ARMOR - A pipe coupling for coupling adjacent ends of a pair of pipes includes a sleeve, a split-ring gland positioned around one of the ends of the sleeve, and at least one annular gasket positioned within the split-ring gland and configured to be compressed by the split-ring gland for sealing one pipe end to the sleeve. The split-ring gland includes two partially circular gland members with spaced ends defining a gap. The pipe coupling includes an armor positioned to span the gap between the spaced ends to provide a generally closed annular periphery about the gasket. The armor includes a corrugated portion having a plurality of corrugations engaging the split-ring gland and the gasket during compression of the gasket. The armor is cold formed to improve structural strength and durability. | 01-22-2015 |
| 20150035275 | CLAMPING BELT AND PIPE COUPLING FOR THE FORCE-CLOSED CONNECTION OF PIPES, IN PARTICULAR OF SMOOTH-END PIPES - A clamping belt ( | 02-05-2015 |
| 20150069753 | ADVANCEMENTS IN MECHANICAL SEALING APPARATUS - An apparatus for connecting two pipes in fluid communication is provided. The apparatus comprises a connector body configured to, in use, bridge a first and a second pipe, each pipe having a free end. It also comprises a mechanical interlock arrangement, for preventing or limiting axial movement of the connector body relative to the free ends of the first and second pipes. The apparatus also comprises a mechanical seal arrangement for providing a metal-to-metal seal between the pipes and the connector body. | 03-12-2015 |
| 20150316184 | ASSEMBLY WITH SEPARATELY TIGHTENABLE ANNULAR CLAMPS - An improved clamp assembly that has two adjacent annular clamps and the user has the choice of tightening just one of them or both of them. | 11-05-2015 |
| 20150369405 | SLIP ON GROOVE COUPLING WITH MULTIPLE SEALING GASKET - Couplings and gaskets are disclosed. Couplings may include an upper housing, a lower housing, at least one fastening device coupling the upper housing to the lower housing, and a gasket positioned within the upper and lower housings, the gasket including two primary seals and a rib protruding from an inner surface of the gasket and between the two primary seals. | 12-24-2015 |
| 20160053925 | STRUCTURE FOR ATTACHING PRESSURE DETECTOR - An attachment structure for a pressure detector that is such that the pressure detector is attached in an airtight manner within an insertion hole of an attachment tool main body attached to a mechanical device or pipelines, with a pipe, a gasket presser, a gasket, a split ring, and a bonnet. The configuration is such that the gasket presser and the split ring are inserted into the insertion hole of the attachment tool main body, the bonnet is inserted into the insertion hole, the bonnet is fastened to the attachment tool main body side, the gasket presser and the gasket are pressed by the split ring, and sealing portions are formed between the bottom surface of the insertion hole and one end surface of the gasket and between the tip end surface of the gasket restraint and the other end surface of the gasket. | 02-25-2016 |
| 20160131287 | HIGH PRESSURE PIPE COUPLING CONSTRUCTION, AS WELL AS METHOD FOR FORMING SAID COUPLING CONSTRUCTION - A high pressure pipe coupling construction includes at least one high pressure pipe ( | 05-12-2016 |
| 20160138740 | PIPE CLAMP ASSEMBLY WITH STIFFENING ELEMENT - A pipe clamp assembly includes a band having an inner annular seal element wrappable around a pipe, opposing clamp members extending from the band, and tightening elements for clamping together the clamp members. The tightening elements are positioned at or near opposite ends of each of the clamp members. A stiffening element is constructed of an elongate beam with mounting holes near opposite ends of the beam. The tightening elements pass through the mounting holes of the stiffening element. There are no tightening elements along a length of the stiffening element between the mounting holes. | 05-19-2016 |
| 20220136630 | PIPE COUPLING - A pipe coupling includes a coupling body defining a first body end; and an end ring assembly comprising: a split ring a gap defined between a first ring end of the split ring and a second ring end of the split ring; a gasket bridge extending across the gap between the first ring end and the second ring end; and a gasket assembly disposed radially inward of the split ring and the gasket bridge, the gasket assembly compressed between the split ring and the first body end. | 05-05-2022 |
| 20220136631 | END RING ASSEMBLY - An end ring assembly includes a split ring defining an outer ring surface, an inner ring surface, a first ring end and a second ring end, the first ring end and second ring end defining a gap therebetween; a gasket bridge defining an outer bridge surface, an inner bridge surface, the gasket bridge further defining a first bridge end, a second bridge end, and a middle portion therebetween, the middle portion of the gasket bridge extending between the first ring end and the second ring end, the first bridge end and second bridge end engaging the inner ring surface, a first ramp extending from the first bridge end; and a primary gasket defining a primary outer sealing surface and a primary inner sealing surface, the primary outer sealing surface engaging the inner ring surface and the inner bridge surface. | 05-05-2022 |
