Patent application number | Description | Published |
20080224464 | Pipe coupling - A coupling for the straight line connection of pipes and for the mechanical and hydraulic interconnection of the ends of a first pipe and a co-axial second pipe, are both at least 50 mm in outer diameter. The first pipe is equal to or up to 10 percent larger than the diameter of the second pipe. The coupling comprises a central housing having a cross-section resembling a wide, low-wall channel, the walls thereof facing away from the center of the pipes. The central housing prevents the separation of two curved outer clamp members. A pair of substantially parallel clamping extensions allows screw clamping. Two-part circumferential elastomeric seal members comprise a thicker portion and a thinner portion, and a sloped internally-toothed grip washer is disposed proximate to each of the projection second sides. | 09-18-2008 |
20090140520 | PIPE COUPLING WITH BUILT-IN GRIP - The present invention relates to a coupling for cylinders or pipes. | 06-04-2009 |
20100007137 | PIPE COUPLING WITH BUILT-IN GRIP - The present invention relates to a coupling for cylinders or pipes. | 01-14-2010 |
20100171303 | MULTI-ANGLE JOINT - The present invention relates to the interconnection of conduits and pipelines carrying liquids or gasses. The invention provides a low-cost multi-angle adjustable joint and a coupling suitable for round-section piping, tubing, air ducts or drainage. Each extremity of the coupling is arranged for connection to an adjacent pipe, filter, pump or other fluid flow item. The invention provides a multi-angle adjustable joint for two section pipes, tubes or ducts, comprising; a first round pipe provided with a first round inner flange disposed at an angle relative to the pipe axis: A second round pipe provided with a second round inner flange disposed at an angle relative to the second pipe axis, the second inner flange being sized to match the first inner flange, and when the two flanges are oriented face-to-face the pipes can be steplessly rotated relative to each other to a position wherein the largest total angle between the axes of the two pipes is at least 30° and is the sum of the two angles. An elastomer seal element extending along the outer edges of both flanges, disposed inside a tightenable clamp member enveloping the major portion of said seal element. | 07-08-2010 |
20100176588 | PIPE GRIP RING - A grip element comprising a wedge-like structure supporting a metal plate, the exposed outer surface thereof being provided with an array of large and small gripping teeth. The large teeth project from the surface of said metal plate further than said small teeth. The invention further provides a grip element having a floor. The grip elements may be disposed around a ring for the purpose of pipe gripping. The ring is particularly useful in a pipe coupling to grip metal and plastic pipes | 07-15-2010 |
20100230906 | ADJUSTABLE SEAL - The invention relates to external sealing of pipe joints. The invention provides a wide seal strip useful in combination with a coupling for pipes, the length, and hence the diameter of the seal strip being adjustable also on site. The invention provides a pipe clamp flexible seal strip adaptable to be easily shortened by the user to a required length. The seal strip being configured for use inside a pipe coupling, and having at least one narrow dividing cut which extends across the width of the seal to almost completely divide a major portion of the strip length from a minor portion thereof. The minor portion remaining connected to the major portion by at least one bridge member which can easily be severed on site for removal and disposal of the minor portion. | 09-16-2010 |
20110031737 | PIPE COUPLING WITH AUXILIARY CLAMP - A pipe coupling including at least one annular clamp housing at an end of a body, the at least one annular clamp housing having an opening for inserting therein a pipe and including clamp members and a tightening element that fastens and tightens the clamp members towards each other in a direction transverse to an axial length of the body so as to apply a radially-inward clamping force on a pipe inserted in the opening, at least one auxiliary clamp including auxiliary clamp members located near the at least one annular clamp housing, and an auxiliary tightening element that fastens and tightens the auxiliary clamp members towards each other in a direction transverse to the axial length of the body so as to apply a radially-inward clamping force on the pipe inserted in the opening. | 02-10-2011 |
20110095519 | PIPE CLAMP WITH SELF-ALIGNING MECHANISM WHILE CLOSIING OF SAME - The invention relates to a pipe clamp. The invention provides an improved external clamp for use on pipes, provided with a self-aligning mechanism. The self-aligning means is particularly useful in combination with a band pipe clamp or a band pipe coupling. The means comprising a first and a second rounded wedge-like shapes, the wedge base of the two shapes being disposed at an acute angle to each other when installed, the rounded wedge tips being in contact with each other, the metal band of the pipe coupling or clamp, when tightened by at least one screw fasteners reducing the acute angle between the bases of the wedge-like shapes. The wedge like position being provided with at least one aperture allowing passage for at least one screw fastener therethrough. The first wedge being provided with an alignment projection while the second wedge being provided with a complementary recess. | 04-28-2011 |
20110095520 | PIPE COUPLING WITH SEAL PRESSING DEVICE - A seal pressing device for a pipe coupling including a sealing member having an axial length and an outer curved contour pressable against an inner diameter of a seal, the sealing member having an axial row of mounting apertures for receiving therein mechanical fasteners, and at least one winged extension extending from an end of the sealing member bent inwards from the outer curved contour of the sealing member. | 04-28-2011 |
20110115217 | PIPE JUNCTION WITH SEAL PRESSING DEVICE - A pipe coupling including an annular seal disposed in an annular clamp housing, an aperture being formed through a side wall of the annular seal and the annular clamp housing, and a pressing ring secured to and pressed against the annular seal and a side wall of the annular clamp housing with a mechanical fastener, so as to create a water-tight junction between the annular seal and the annular clamp housing. | 05-19-2011 |
20110266754 | IMPROVED PIPE COUPLING SEAL - A pipe coupling seal including a cylindrical elastomeric seal ( | 11-03-2011 |
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 |
20120145270 | PIPE CLAMP ASSEMBLY WITH TIGHTENING ELEMENT BUSHING - A pipe clamp assembly including a band having an inner annular seal element wrappable around a pipe, opposing clamp members that extend from the band and which are formed with mounting holes, at least one tightening element for clamping together the clamp members, the tightening element passing through the mounting holes, and a bushing placed in the mounting hole through which the at least one tightening element passes, the bushing having a hemi-spherical cap portion and each mounting hole being correspondingly shaped with a hemi-spherical concave shape to accommodate therein the cap portion. | 06-14-2012 |
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 |
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 |
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 |
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 |
20140001709 | MULTILAYER HYDRAULIC SEAL ASSEMBLY FOR CLAMP | 01-02-2014 |
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 |
20140319781 | HYDRAULIC GASKET FOR COUPLING - A method for making a gasket including molding an elastomeric material in a mold to form a gasket that includes an outer portion folded over an inner portion so as to define an inner annular space between and bounded by the outer and inner portions, and wherein one or more apertures are formed in a side wall of the gasket, which are in fluid communication with the inner annular space. | 10-30-2014 |
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 |