Industry
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CPC
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F16L55/00
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Sub Industries
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