A Cooperative Service Valve includes a fitting connected to a valve body via a tube, a stem configured to fit within the valve body. The stem includes a stem first end having a first seal and configured to movably fit within a tube first end, a sealing portion connected to the stem first end and configured, in a first position, to provide a second seal between the sealing portion and an inner surface of the stem body, a fluid flow portion comprising openings for allowing liquid or gaseous media to pass through the Cooperative Service Valve when the stem is in a second position and a stem second end configured to secure a poppet guide, a poppet and a spring associated with the poppet that biases the poppet against a seal to yield a third seal. The first, second and third seals open and close in a particular order to allow or prevent fluid from flowing through the stem.

A valve for connecting an external tank to an aircraft has a valve body; and a seal assembly arranged, in use, to resiliently engage a seal surface on an aircraft. The seal assembly has a telescopic seal member extending from a proximal end within the valve body to a distal end. The telescopic seal member is constrained within the valve body so as to maintain axial alignment of the telescopic seal member and the valve body. The seal assembly may also have a seal carrier at the distal end of the telescopic seal member. The seal carrier may be pivotable relative to the telescopic seal member for alignment, in use, with the aircraft seal surface.

A valve for connecting an external tank to an aircraft has a valve body; and a seal assembly arranged, in use, to resiliently engage a seal surface on an aircraft. The seal assembly has a telescopic seal member extending from a proximal end within the valve body to a distal end. The telescopic seal member is constrained within the valve body so as to maintain axial alignment of the telescopic seal member and the valve body. The seal assembly may also have a seal carrier at the distal end of the telescopic seal member. The seal carrier may be pivotable relative to the telescopic seal member for alignment, in use, with the aircraft seal surface.

A fluid device housing includes a lower fluid device housing portion and an upper fluid device housing portion each formed with mating members. Each of the mating members of the lower fluid device housing portion mate with a corresponding mating member of the upper fluid device housing portion to form an inclined channel. A connector member is arranged to fit at least partially around peripheries of the lower and upper fluid device housing portions. The connector member includes lugs that are received in the inclined channels.

A fluid device housing includes a lower fluid device housing portion and an upper fluid device housing portion each formed with mating members. Each of the mating members of the lower fluid device housing portion mate with a corresponding mating member of the upper fluid device housing portion to form an inclined channel. A connector member is arranged to fit at least partially around peripheries of the lower and upper fluid device housing portions. The connector member includes lugs that are received in the inclined channels.

A spiral pipe 9 is formed by joining edges 93, 94 of adjacent turns of a strip member 90 while helically winding the strip member 90 using a pipe-making apparatus 3. A propulsive reaction force for moving in a winding direction of the strip member 90 is imparted to a following strip portion 92 or a preceding spiral pipe portion 91 of the strip member 90 by a propulsive reaction force imparting portion 10 of the pipe-making apparatus 3. The following strip portion 92 follows a preceding spiral pipe portion 91 that has already been made into a pipe. A resisting force in a direction opposite to the propulsive reaction force is imparted to the strip member 90 along the winding direction by a friction between a resisting force imparting portion 30 and the strip member 90 generated while the strip member 90 is moved forward. In this arrangement, a diameter limiting frame can be omitted, and thereby, the pipe-making apparatus 3 can be downsized.

A spiral pipe 9 is formed by joining edges 93, 94 of adjacent turns of a strip member 90 while helically winding the strip member 90 using a pipe-making apparatus 3. A propulsive reaction force for moving in a winding direction of the strip member 90 is imparted to a following strip portion 92 or a preceding spiral pipe portion 91 of the strip member 90 by a propulsive reaction force imparting portion 10 of the pipe-making apparatus 3. The following strip portion 92 follows a preceding spiral pipe portion 91 that has already been made into a pipe. A resisting force in a direction opposite to the propulsive reaction force is imparted to the strip member 90 along the winding direction by a friction between a resisting force imparting portion 30 and the strip member 90 generated while the strip member 90 is moved forward. In this arrangement, a diameter limiting frame can be omitted, and thereby, the pipe-making apparatus 3 can be downsized.

A universal fastener is provided. The universal fastener is connectable to a buryable element such as a pipe. A marker may be removably attached to the fastener to extend away from the buryable element allowing it to be easily identified once buried.

A universal fastener is provided. The universal fastener is connectable to a buryable element such as a pipe. A marker may be removably attached to the fastener to extend away from the buryable element allowing it to be easily identified once buried.

An apparatus and method is provided for structurally renewing and sealing a wall of a manhole. The apparatus includes a tubular sleeve impregnated with a hydrophilic or hydrophobic material capable of expanding when in contact with water, and a liner impregnated with a resinous material capable of curing and hardening. The apparatus is positioned in a manhole and inflated, which forces the tubular sleeve and the liner into contact with the wall of the manhole. The hydrophilic or hydrophobic material is forced into defects of the wall, thus sealing the wall, while the liner is allowed to cure and harden, thus structurally renewing the wall of the manhole.