Devices or appurtenances for use in, or in connection with, pipes or pipe systems

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16LPIPES JOINTS OR FITTINGS FOR PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING MEANS FOR THERMAL INSULATION IN GENERAL

F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems

F16L55/005Devices restraining ruptured tubes from whipping F16L55/02Energy absorbers Noise absorbers F16L55/027Throttle passages F16L55/02709in the form of perforated plates F16L55/02718placed transversely F16L55/02727placed parallel to the axis of the pipe F16L55/02736using transversal baffles defining a tortuous path F16L55/02745by passing through a mass of particles or a porous member F16L55/02754using a central core throttling the passage F16L55/02763using an element with multiple tubes F16L55/02772using spirally or helically shaped channels F16L55/02781The regulating element being provided with radial outputs F16L55/0279The fluid flowing two or more times longitudinally in opposite directions F16L55/033Noise absorbers F16L55/0331by inserting an elongated element in the pipe F16L55/0332by inserting a body of compressible material in the pipe F16L55/0333by means of an active system F16L55/0335by means of external rings F16L55/0336by means of sound-absorbing materials F16L55/0337by means of a flexible connection F16L55/0338by means of a membrane F16L55/035in the form of specially adapted hangers or supports F16L55/04Devices damping pulsations or vibrations in fluids F16L55/041specially adapted for preventing vibrations F16L55/043specially adapted for protecting instruments from water hammer or vibrations F16L55/045specially adapted to prevent or minimise the effects of water hammer F16L55/05Buffers therefor F16L55/052Pneumatic reservoirs F16L55/053the gas in the reservopir being separated from the fluid in the pipe F16L55/054the reservoir being placed in or around the pipe from which it is separated by a sleeve-shaped membrane F16L55/055Valves therefor F16L55/07Arrangement or mounting of devices F16L55/09Air conditioning F16L55/10Means for stopping flow from or in pipes or hoses F16L55/1003by introduction of paste, powder, particles, or the like F16L55/1007Couplings closed automatically when broken F16L55/1011Soluble closing devices F16L55/1015Couplings closed automatically when disengaging force exceeds preselected value F16L55/1018Pivoting closing devices F16L55/1022Fluid cut-off devices automatically actuated F16L55/1026Fire protection devices F16L55/103by temporarily freezing liquid sections in the pipe F16L55/105Closing devices introduced radially into the pipe or hose F16L55/11Plugs F16L55/1108fixed by screwing or by means of a screw-threaded ring F16L55/1116glued or welded F16L55/1125fixed by rotating a limited amplitude F16L55/1133fixed by means of balls F16L55/1141the plug being made of elastic material F16L55/115Caps F16L55/1152fixed by screwing or by means of a screw-threaded ring F16L55/1155fixed by rotating a limited amplitude F16L55/1157using hooks, pawls, or other movable or insertable locking members F16L55/12by introducing into the pipe a member expandable in situ F16L55/124introduced radially into the pipe or hose F16L55/128introduced axially into the pipe or hose F16L55/1283Plugging pig F16L55/1286The closing device being a cap F16L55/13the closure device being a plug fixed by plastic deformation F16L55/132the closure device being a plug fixed by radially deforming the packing F16L55/134by means of an inflatable packing F16L55/136the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like F16L55/16Devices for covering leaks in pipes or hoses F16L55/1604by means of a by-pass conduit F16L55/1608by replacement of the damaged part of the pipe F16L55/1612by means of a plug F16L55/1616the material forming the pipe or hose being self-sealing F16L55/162from inside the pipe F16L55/163a ring, a band or a sleeve being pressed against the inner surface of the pipe F16L55/164a sealing fluid being introduced in the pipe F16L55/1645a sealing material being introduced inside the pipe by means of a tool moving in the pipe F16L55/16455a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected F16L55/165a pipe or flexible liner being inserted in the damaged section F16L55/1651the flexible liner being everted F16L55/1652the flexible liner being pulled into the damaged section F16L55/1653and being pressed into contact with the pipe by a tool which moves inside along the pipe F16L55/1654and being inflated F16L55/1655a pipe being formed inside the old pipe by winding strip-material F16L55/1656materials for flexible liners F16L55/1657lengths of rigid pipe being inserted F16L55/1658the old pipe being ruptured prior to insertion of a new pipe F16L55/168from outside the pipe F16L55/1683by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like F16L55/1686by winding a tape F16L55/17by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose F16L55/1705with a substantially radial tightening member F16L55/171the ring or the sleeve being tightened by a wedge section F16L55/1715the ring or the sleeve being tightened by hooks, pawls, or other movable members F16L55/172the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut F16L55/1725in which the threaded pin is rigid with the hose encircling member F16L55/175by using materials which fill a space around the pipe before hardening F16L55/178by clamping an outer gasket against a joint with sleeve or socket F16L55/179specially adapted for bends, branch units, branching pipes or the like F16L55/18Appliances for use in repairing pipes F16L55/24Preventing accumulation of dirt or other matter in the pipes F16L55/26Pigs or moles F16L55/265specially adapted for work at or near a junction between a main and a lateral pipe F16L55/28Constructional aspects F16L55/30of the propulsion means F16L55/32being self-contained F16L55/34the pig or mole being moved step by step F16L55/36jet driven F16L55/38driven by fluid pressure F16L55/40of the body F16L55/42gelled or degradable F16L55/44expandable F16L55/46Launching or retrieval of pigs or moles F16L55/48Indicating the position of the pig or mole in the pipe or conduit