A pipe joint can be attached to a hydraulic apparatus so as to be able to absorb vibrations of a pipe or the like connected to thereto. The pipe joint comprises a joint member having one end provided with an externally threaded portion in which external threads are cut, an annular clearance groove and an O ring squeezing surface, and an intermediate member to be fixedly screwed in the hydraulic apparatus, provided with an internally threaded portion in which internal threads are cut and an annul...

A sleeved composite pipe or piling structure formed of an elongated polyethylene pipe or tube of high-density polyethylene (HDPE) or another polyethylene material installed over a substantially rigid and incompressible hollow metal pipe or solid wood core having an outer diameter that is the same or slightly larger than a normal inside diameter of the polyethylene pipe or tube when measured in a relaxed state at ambient temperature. The polyethylene pipe or tube is, for example, a HDPE 3408 mate...

A compound pipe for conveying fluid comprising an inner pipe positioned within an outer pipe such that the walls of the inner pipe and outer pipe define a gap. The compound pipe further including an insulating material for insulating the inner pipe from the outer pipe, the insulating material and outer pipe defining a fluid channel.

A pipe clamp is used to secure an elongate article, such as a pipe, to a structural channel. The pipe clamp includes a pair of elongate clamping straps for positioning about the article. Each strap includes an attachment end for attaching to the structural channel an intermediate portion for wrapping around the article and a connection end. A threaded fastener extends through the connection ends to couple the strap around the article. Each connection end is of different length and includes a rec...

The present invention relates to a tapping pipe for a metallurgical melting vessel, such as a converter or an arc furnace.

An irrigation pipe with a plurality of connector elements adapted for attachment of lateral branches thereto, where the connector elements are integrally fitted to the pipe's wall during the manufacture. Connector elements may be fitted open and be adapted for closing after manufacture if not intended for use, or may be fitted closed and be adapted for opening after manufacture to enable the attachment. A method of production of such irrigation pipe from a strip of flexible weldable or bondable ...

A pipe joint includes a socket, a plug, a retaining unit for preventing the plug from being drawn out from the socket, a seal ring arranged at an inner periphery of the socket and a hold ring arranged at the inner periphery of the socket for preventing the seal ring from being moved. A projected portion is formed at a position of the inner periphery of the socket for attaching the hold ring, and the hold ring includes a notched portion or a recess portion for engaging with the projected portion,...

A pipe and support system is provided including a pipe that extends adjacent a wood member. A metal pipe hanger is configured into a loop and includes opposite end portions that include spikes that project therefrom. The opposite end portions of the pipe hanger can be driven into the wood members so as to secure the opposite end portions of the pipe hanger to the wood member so as to form a loop. A pipe segment is projected through the loop such that the pipe segment is supported by the pipe han...

In pipe jacking wherein a pipe line is formed by horizontally inserting pipes one by one from a vertical pit without moling the ground, a pipe of spigot and socket type to be used is coated with such material as concrete to form an uniform common external diameter from a flange section with its external diameter enlarged to a spigot section, a pipe whose external surface is covered with another smooth outer pipe so as to make the external surface smooth and reduce frictional resistance is provid...

A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radially expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by sp...