Pipe sections are often connected together with a spigot end received within a bell end and a gasket provided there between. An assist may be helpful to apply at least a tension if not move the gasket towards a gap between the bell end and an exterior surface of the spigot end of the two pipe portions, and/or against the exterior surface of the spigot end so as to improve the likelihood of an adequate seal.

Pipe sections are often connected together with a spigot end received within a bell end and a gasket provided there between. An assist may be helpful to apply at least a tension if not move the gasket towards a gap between the bell end and an exterior surface of the spigot end of the two pipe portions, and/or against the exterior surface of the spigot end so as to improve the likelihood of an adequate seal.

A prefabricated composite concrete element for use in a corrosive sewer environment. The concrete element has a hollow reinforced cast concrete portion with at least one end having connection details, a premolded corrosion resistant inner plastic liner. The plastic liner lines an interior of the hollow concrete element and the connection details to provide abutting liner faces in an assembled joint to limit exposure through said joint of said concrete portion to corrosive materials arising in said sewer environment. At least two prefabricated composite concrete elements may be assembled end to end at a joint to form a concrete sewer system. Also disclosed are a method of prefabricating such a composite concrete element.

A connector seal pack spacer and assembly are employed for use in a fluid line quick connector in an automotive application, for instance. The spacer is located beside an o-ring in installation in the fluid line quick connector. The spacer is designed and constructed with an angled surface that, upon insertion of a spigot in the fluid line quick connector, works to maintain an intended position of the o-ring in the fluid line quick connector. Unwanted mispositioning and dislodging of the o-ring is hence minimized and, in some cases, altogether precluded.

A connector seal pack spacer and assembly are employed for use in a fluid line quick connector in an automotive application, for instance. The spacer is located beside an o-ring in installation in the fluid line quick connector. The spacer is designed and constructed with an angled surface that, upon insertion of a spigot in the fluid line quick connector, works to maintain an intended position of the o-ring in the fluid line quick connector. Unwanted mispositioning and dislodging of the o-ring is hence minimized and, in some cases, altogether precluded.

A pipe fitting includes a socket that receives an end of a pipe section therein such that a gap exists between an outer surface of the pipe section and an inner surface of the socket. A pair of ports extend through the socket and are in fluid communication with the gap. A clamp secures the pipe section within the socket as a bonding agent is extruded into the gap via a port. The clamp includes a pair of arcuate segments, each having an inner circumferential wall, first and second end portions, and an elongated sealing member. Each arcuate segment includes a plurality of spring-loaded devices, each having a distal end portion extending through the inner circumferential wall that is urged into contact with the pipe section outer surface.

A pipe fitting includes a socket that receives an end of a pipe section therein such that a gap exists between an outer surface of the pipe section and an inner surface of the socket. A pair of ports extend through the socket and are in fluid communication with the gap. A clamp secures the pipe section within the socket as a bonding agent is extruded into the gap via a port. The clamp includes a pair of arcuate segments, each having an inner circumferential wall, first and second end portions, and an elongated sealing member. Each arcuate segment includes a plurality of spring-loaded devices, each having a distal end portion extending through the inner circumferential wall that is urged into contact with the pipe section outer surface.

A thick-wall compression pipe fitting, comprising: a thick-wall fitting body for connecting arranged between two thick-wall steel pipe bodies for connection, wherein a sealing ring, a positioning retainer and a teeth ring is disposed between said thick-wall fitting body and said thick-wall steel pipe bodies. Said thick-wall fitting body includes a middle connecting section, a first flared section and a second flared section extending to both sides to adopt a thick wall metal pipe. A special crimping tool is used to deform the fitting body for crimping to compress the socket section of the fitting body having a sealing ring and a high-strength teeth ring, so that the sealing ring in the socket section groove seals the steel pipe to stop leakage, wherein the high-strength teeth ring shrinks and firmly fastens the steel pipe so that the connection between the fitting body and the steel pipe can be completed instantly.

A joint having a male joint member and female joint member with enhanced ease of assembly, in which a raised stop on the male joint member is limited to displacement between a constriction on the female joint member and a locking ring segment, in which the locking ring segment and constriction are separated by an unobstructed traverse region that allows the male joint member to slide axially when under stress without separation from the female joint member, and in which a compressible spacer is installed between the male joint member and female joint member to ensure that the raised stop is installed in an intermediate position between the constriction and the locking ring segment. The compressible spacer withstands forces associated with assembly but allows the joint to compress during extreme events to prevent failure of the joint during extreme events, such as earthquakes, floods, and landslides.

A joint having a male joint member and female joint member with enhanced ease of assembly, in which a raised stop on the male joint member is limited to displacement between a constriction on the female joint member and a locking ring segment, in which the locking ring segment and constriction are separated by an unobstructed traverse region that allows the male joint member to slide axially when under stress without separation from the female joint member, and in which a compressible spacer is installed between the male joint member and female joint member to ensure that the raised stop is installed in an intermediate position between the constriction and the locking ring segment. The compressible spacer withstands forces associated with assembly but allows the joint to compress during extreme events to prevent failure of the joint during extreme events, such as earthquakes, floods, and landslides.