A pipe grip is having an ability to apply increased compressive pressure against an exterior surface of an inserted spigot end of a pipe internal to a bell end of a pipe such as indirectly against a gasket to provide an improved pipe seal or directly against the exterior surface to provide a pipe restraint so as to prevent the spigot end from pulling out from the bell end in an undesired manner. The pipe grip preferably applies one of tension and/or movement of a tensioner from internal to the bell end of the pipe such as from a groove through a bore to an external surface of a pipe where a tension applying device applies tension so as to at least one of move and/or apply tension to the tensioner through one or more bores which extend from the external surface of the bell end of the pipe to an internal surface of the bell end of the pipe to direct a compressive force onto the inserted pipe section.

A pipe grip is having an ability to apply increased compressive pressure against an exterior surface of an inserted spigot end of a pipe internal to a bell end of a pipe such as indirectly against a gasket to provide an improved pipe seal or directly against the exterior surface to provide a pipe restraint so as to prevent the spigot end from pulling out from the bell end in an undesired manner. The pipe grip preferably applies one of tension and/or movement of a tensioner from internal to the bell end of the pipe such as from a groove through a bore to an external surface of a pipe where a tension applying device applies tension so as to at least one of move and/or apply tension to the tensioner through one or more bores which extend from the external surface of the bell end of the pipe to an internal surface of the bell end of the pipe to direct a compressive force onto the inserted pipe section.

A pipe joining system and pipe joint are shown in which two sections of plastic pipe, particularly molecularly oriented pipe, are joined. A ring-shaped elastomeric body is installed within a mating groove provided in a mouth region of female pipe section. The ring-shaped body is formed of an injection molded elastomeric material which is joined to a series of arcuate gripping segments which have teeth on an inner surface thereof which are designed to engage an outer surface of a mating male pipe section to restrain movement of the male pipe after assembly of a pipe joint. The gripping segments are separated by a gap which is open prior to assembly, but which closes during assembly. Each of the segments also has a positive stop feature to prevent over travel of the male pipe section relative to the female pipe section.

A conduit locking system includes a first cylindrical conduit having a male and female portion. The female portion includes an engagement protrusion that is radially disposed on an outer surface, and an inner surface that is configured to engage an outer surface of a male portion of a second cylindrical conduit to define a continuous fluid passageway. The conduit locking system comprises an annular band having a tensioner and is configured to engage the male portion of the second cylindrical conduit. The annular band may also comprise a plurality of fingers disposed radially about the annular band. The plurality of fingers may be configured to engage the engagement protrusion of the female portion of the first cylindrical conduit. The conduit locking system is manipulatable between an unclamped position to a clamped position.

A seating and restraint system is shown for joining the spigot and socket ends of two sections of plastic pipe to form a pipe joint. The socket pipe ends are preformed at the factory with an internal raceway which receives both a sealing ring and a companion gripping ring. The sealing ring is an elastomeric member having a periphery with a protruding ear formed at one circumferential location. The companion gripping ring is a hardened member having one opening gap in the circumference thereof. The protruding ear on the sealing ring fits within the opening gap in the gripping ring, engagement of the protruding ear within the opening gap serving to prevent extrusion of the sealing ring within the gap in the gripping ring and also limiting closure of the gripping ring after engagement of the spigot end with the socket pipe end as the pipe joint is assembled.

A seating and restraint system is shown for joining the spigot and socket ends of two sections of plastic pipe to form a pipe joint. The socket pipe ends are preformed at the factory with an internal raceway which receives both a sealing ring and a companion gripping ring. The sealing ring is an elastomeric member having a periphery with a protruding ear formed at one circumferential location. The companion gripping ring is a hardened member having one opening gap in the circumference thereof. The protruding ear on the sealing ring fits within the opening gap in the gripping ring, engagement of the protruding ear within the opening gap serving to prevent extrusion of the sealing ring within the gap in the gripping ring and also limiting closure of the gripping ring after engagement of the spigot end with the socket pipe end as the pipe joint is assembled.

A part of a gasket that conducts electricity across the otherwise nonconducting gasket. Versions of the insert provide an electrical connection when installed even if the parts sealed by the gasket deflect, and do not deform under compression due to their resilient nature. The gaskets can be used in pipe joints, among other uses, resulting in a pipe joint that conducts electricity between the pipe spigot and the socket of a pipe or fixture even if a deflection event occurs.

A part of a gasket that conducts electricity across the otherwise nonconducting gasket. Versions of the insert provide an electrical connection when installed even if the parts sealed by the gasket deflect, and do not deform under compression due to their resilient nature. The gaskets can be used in pipe joints, among other uses, resulting in a pipe joint that conducts electricity between the pipe spigot and the socket of a pipe or fixture even if a deflection event occurs.

A dynamic sleeve seal fitting including a first sleeve having a tongue portion, a second sleeve having a groove configured to receive the tongue portion, and a first seal member coupled to at least one of the tongue portion or the groove. The first seal being configured to generate a seal between the first sleeve and the second sleeve in response to inserting the tongue portion into the groove.

A dynamic sleeve seal fitting including a first sleeve having a tongue portion, a second sleeve having a groove configured to receive the tongue portion, and a first seal member coupled to at least one of the tongue portion or the groove. The first seal being configured to generate a seal between the first sleeve and the second sleeve in response to inserting the tongue portion into the groove.