Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16L - Pipes; Joints or fittings for pipes; Supports for pipes, cables or protective tubing; Means for thermal insulation in general › F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887)
11/1991
11/28/1991WO1991018234A1 Ready-for-use, sandwich mending tube for renovating the inside of damaged drain channels and process for producing the same
11/28/1991WO1991017912A1 Device for dampening vibrations in hydraulic systems
11/27/1991CN1056562A Grafted protector for resisting frost crack
11/26/1991US5067690 Self-closing device for connecting containers
11/26/1991US5067689 Transmission drain plug
11/21/1991EP0457319A1 Sealing sleeve and its application
11/21/1991EP0457101A2 Use of silicon rubber for channelization with a specially equipped packer
11/21/1991DE4115691A1 Vibration damping device for vehicle hydraulic circuit - uses throttle valve controlled by electronic switching device
11/21/1991DE4015544A1 Silicone rubber for prodn. of packers used for repairing drains etc.
11/20/1991CN2089113U Blind flange for displacing valve of gas pipeline
11/20/1991CN2089112U Noise and wave absorbers for hydraulic system
11/20/1991CN1056346A Inside processing apparatus
11/20/1991CN1056345A Adjustable pressure control device for hydraulic brake systems
11/19/1991US5066208 Pipe joint testing and grouting unit
11/19/1991US5066053 Clamp with pipe branch
11/19/1991US5065981 Water line test cap
11/19/1991US5065928 Method and apparatus for blowing an optical fibre member
11/19/1991US5065617 Multiple diameter pipe test end closure
11/16/1991CA2042332A1 Modified silicone rubber for use in the sanitation of sewers in conjunction with specially equipped packers
11/15/1991WO1991018236A2 Internal pipe inspection system
11/14/1991WO1991017386A1 Cleanable scraper station
11/14/1991WO1991017383A1 Valve block, especially for slip-controlled braking systems
11/14/1991WO1991017382A1 Flow controlling device
11/14/1991WO1991017375A1 Inflatable bladder for control of fluid flow
11/14/1991WO1991017325A1 Method and equipment for use in renovation of sewer pipes
11/14/1991DE4012606A1 Repair and renovation appts. for waste water pipes - comprises unit on wheels adapted to pipe dia. and carrying service tubes for cleaning and coating materials and power cables
11/14/1991DE4012605A1 Repairing and relining waste water pipe - by cleaning internally and coating with synthetic dispersion
11/13/1991EP0456597A1 Adjustable pressure control device for hydraulic brake systems
11/13/1991EP0456538A1 Seal arrangement for a drive shaft with inner splines
11/13/1991EP0455949A2 Boring ram for the destructive replacement of a buried pipe
11/13/1991EP0441887A4 Method of processing orifices
11/13/1991EP0403546B1 A device for controlling fluid flow
11/12/1991US5064486 Colloidal polymer dispersion for internal sealing of pipes and process for the application thereof
11/12/1991US5063967 Pumpable cement grout
11/12/1991CA1291978C Flue gas shut-off valve
11/08/1991CA2040738A1 Adjustable pressure control device for hydraulic brake systems
11/07/1991DE4031789A1 Pig for cleaning pipeline - is driven along pipeline by pressure medium
11/06/1991EP0454930A1 Polyurethane composition with reduced water to prepolymer mix ratio
11/05/1991US5062455 Pressure vessel with diaphragm compression seal
11/05/1991US5062325 Pipe plug and centering construction for centering ridged key in mating groove in pipe plug or nut
11/05/1991US5062207 Method of making live gas main insertions
11/03/1991CA2041567A1 Lining of metallic pipe
11/03/1991CA2041566A1 Lining of metallic pipe
11/01/1991CA2015880A1 Internal pressure hose safety device
10/1991
10/31/1991WO1991016568A1 Improvements relating to the lining of pipelines or passageways
10/31/1991WO1991016567A1 Sealing device for drive shafts having internal splines
10/31/1991WO1991016566A1 Safety valve system
10/31/1991WO1991016162A1 Process for abrading material from inside pipes at junctions where branch pipes join main pipes, and an abrading device for carrying out the process
10/31/1991DE4013481A1 Ventilblock, insbesondere fuer schlupfgeregelte bremsanlagen Valve block, in particular for slip-controlled braking systems
10/31/1991DE4013333A1 Machine for laying composite pipes - consists of coiled liner and strip with elongated reinforcement ridges and elongated hole
10/31/1991DE4012619A1 Leak location equipment for waste water channels - includes remotely controlled mobile unit with pressure chamber, over pressure generator and pressure sensors
10/30/1991EP0454309A2 Material and process for lining pipes
10/30/1991EP0454103A1 Method of manufacturing innerback tube available for reconditioning a pipeline
10/30/1991EP0453779A2 Method and device for milling the innerwall of an underground pipeline
10/30/1991EP0302061B1 Pipe for relining underground pipelines
10/29/1991US5062068 Computerized analyzing system for piping network
10/29/1991US5060696 Plastic pipe comprising an outer corrugated pipe and a smooth inner wall
10/29/1991US5060525 Resilient connecting device, in particular with incorporated force-measuring device and process for manufacturing it
10/29/1991US5060509 Secondary containment system using flexible piping
10/24/1991DE4012733A1 Underground drain-pipe repair method - presses elastic hose against lining immediately after spraying this in place
10/23/1991EP0453338A1 Method and apparatus for fitting a rotary choke element in a pipe
10/23/1991EP0344151B1 Means for repairing pipes by remote-controlled insertion of a lining
10/23/1991CN2087274U Versatile clamp for stopping liquid leak in pipe with pressure
10/23/1991CN2087273U Quick leak-stopping device
10/22/1991US5058961 Apparatus for damping pressure fluctuations
10/22/1991US5058858 Security drain plug for armor and the like
10/22/1991US5058620 Insertion assembly for boring a hole in a pipe
10/17/1991WO1991015707A1 Method for repairing flow conduits, such as pipe lines
10/17/1991WO1991015554A1 Polyurethane composition with reduced water to prepolymer mix ratio
10/16/1991EP0420959A4 Method of repairing a pipeline and apparatus for use in such a method
10/16/1991EP0418257A4 Rehabilitating underground pipes
10/16/1991EP0222921B1 Apparatus for preventing pulsating current for liquid chromatography and method therefor
10/15/1991US5056830 Flanged repair coupling for pipeline service
10/15/1991US5056678 Access port sealing device
10/15/1991US5056554 Fluid loss, damage prevention and control system
10/15/1991US5056269 Apparatus for working in pipes
10/15/1991US5056210 Method of radially flaring a resilient pipe liner
10/15/1991CA1290709C Telescoping drain assembly for recreational vehicles
10/11/1991WO1991015705A1 Connecting element
10/10/1991DE4010855A1 Pig insertion and capture assembly - to remove industrial residues from pipes
10/09/1991EP0450975A2 Lining conduits, and device therefor
10/09/1991EP0450220A1 Method of renovating and/or protecting sewers or pipes
10/09/1991EP0264420B1 Pipeline vehicle
10/08/1991US5054976 Inside processing apparatus
10/08/1991US5054677 Pipe burster
10/08/1991US5054512 Insertion assembly for a pipe stopper
10/08/1991US5054509 Breakaway coupling, conduit system utilizing the coupling and methods of making the same
10/08/1991US5054187 Method and means for remote-controlled sheathing installation when renovating pipelines
10/08/1991CA1290318C Pipe burster
10/03/1991WO1991014896A1 Pipeline and passageway lining materials
10/02/1991EP0449701A1 Polyvinyl chloride pipe for the inner lining of existing pipes
10/02/1991DE4107048A1 Connection between externally profiled pipe and connector - has intermediate member for quick temporary connecting of components
10/02/1991DE4010177A1 Device for venting pipe line - has valve which can be opened by rotating screwed operating rod
10/01/1991US5052492 Method for sealing an elongated, hollow cavity, and a device for carrying out the method
10/01/1991US5052442 Device for controlling fluid flow
10/01/1991US5052431 Pipeline repair method and apparatus
09/1991
09/26/1991DE4109291A1 Durable seal for manhole cover of e.g. kettle - has PTFE chamber section sideways, open on its outer side, and filled with ring between combined steel and resilient material rings
09/25/1991CN2085459U Ball expanding type plug for pipeline
09/24/1991US5050911 Breakaway coupling
09/24/1991CA1289602C Wide track vehicle
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