A pipe joint provided with a joint main body having a male screw portion and a cap nut screwed on the male screw portion of the joint main body. And, the pipe joint has an outer-fitting cylinder portion and an insertion cylinder portion holding an end portion of an elastically deformable connected pipe on inner and outer sides. And, a C-shaped stop ring, having a slit on its periphery and disposed within a tapered portion of a hole portion of the cap nut, is provided. The stop ring has a holding...

A pipe coupling for coupling the ends of pipe sections together end to end, wherein the coupling includes a barrel member, at least one coupling member, at least one elastomeric sealing ring, a tangentially extending bolt and interacting members. The barrel member surrounds the ends of the pipe sections and the coupling member engages an end of the barrel member. The sealing ring is disposed between an end of the barrel member and the coupling member, and expands radially outward and inward to s...

A pipe clip includes upper and lower clip members that are pivoted at one end and form upper and lower slots with a locking bar fixed in the lower slot. The upper and lower clip members form upper and lower grooves for receiving and thus engaging flanges of pipe sections to be jointed therein. A U-shaped pull tab has two limbs fit over and pivoted to the upper slot. An abutting block is fixed while rotating between the limbs and defines a through hole through which a stem of a hook-on member ext...

A heater for heating elongated objects includes an elongated strip of flexible material having first and second ends and elongated opposite side edges defining a width therebetween. The strip of material comprises a fiber reinforced elastomeric material having at least a first portion that is set in a spiral. The heater also includes at least one elongated electrically conductive heating element imbedded in the elongated strip of elastomeric material. A thermostat is operably coupled to the heat...

A coupling assembly for plastic pipes including a nut, a body, a grip-ring, and a seal. The nut can engage the body through appropriate threads and includes a hooked projection having a sloping surface adapted to abut against and provide a force on a corresponding surface of the grip ring within the body. A pipe is inserted through the nut, grip-ring, and seal into the body. Tightening of the nut causes its sloped surface to engage and the grip ring to be forced both radially and longitudinally....

A pipe connector includes a casing, a valve block mounted in the first end of the casing and movable between a close position and an open position and normally supported in the close position by a spring inside the casing, a locking block holder mounted in the second end of the casing and movable between a locking position and an unlocking position and normally supported in the locking position by a spring inside the casing, and locking blocks transversely mounted in the locking block holder and...

A pipe guide includes a pipe receiving body comprising two sections. The two sections are joined by a hinge to allow the pipe-receiving body to be opened and closed about a pipe. The pipe-receiving body circumferentially surrounds a pipe in a closed position. The pipe receiving body includes one or more marking slots. The marking slots allow the pipe inside the pipe-receiving body to be marked in a predetermined pattern. The pipe guide includes a hinged disposed longitudinally on the exterior of...

A heat pipe includes a metal tube and an amount of fluid sealed in the copper tube. The metal tube may include an inner surface. The inner surface is patterned to define at least one pitch and at least two grooves. A given pitch separates adjacent grooves. The amount of fluid may include a liquid and carbon nanotubes, carbon nanocapsules and/or metal nanoparticles suspended therein.

A tool for simultaneously cleaning inside and outside surfaces surrounding an open end portion of a pipe includes a cleaning arm and a pipe-supporting arm mounted in a head for adjustment of the transverse spacing therebetween. Support portions on the cleaning arm have confronting faces spaced transversely from one another and defining a rearwardly extending, forwardly open slot adapted for the receipt of the wall of a pipe supported on the pipe-supporting arm, and a pipe-cleaning element is dis...

A heat pipe includes a metal tube, a layer of nano-particles and a working fluid. The metal tube has an inner surface defining at least two pores. Each of the pores has a diameter in the range from about 2 to about 50 nanometers. The layer of nano-particles is formed at least one of on the surfaces of the meso-pores and on the inner surface of the metal tube. The working fluid is in the metal tube.