Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887)
01/1989
01/31/1989US4801245 Method of damping surges in recirpocating compressors
01/31/1989US4800913 Breakaway ball joint swivel coupling
01/31/1989US4800637 For a steam generator tube
01/26/1989WO1989000633A1 Process for repairing structures, objects, in particular sewers and pipes of defective stability and watertightness, without dismantling
01/26/1989WO1989000494A1 Method of inserting rigid plastic lining tube into conduit
01/26/1989WO1989000481A1 Method for the repair of the inside of installed conduits
01/25/1989EP0300791A1 Water hammer absorber
01/25/1989EP0300668A1 Temporary or permanent blocking of the bore of a pipe
01/25/1989EP0300405A2 Predetermined breaking point for a branched cooling pipe system on an electronic mounting
01/25/1989EP0300169A1 Pipe sealing pillow with a feed-through
01/25/1989EP0300005A1 Integrated modular tool system.
01/24/1989US4799943 Gas stream diffusing and distribution apparatus
01/24/1989CA1249114A1 Sealing of a pipe joint
01/19/1989DE3722815A1 Control device in a fan-dependent suction line
01/19/1989DE3722646A1 Method for scraping pipelines run underground and scraper for carrying out the method
01/18/1989EP0299269A1 Pipe support
01/18/1989EP0299130A1 Device for lining of existing sewers and the like
01/18/1989EP0298986A1 Apparatus and method for sealing a tube joint.
01/17/1989USRE32832 Temporary obturation panel of a passage inside a vessel accessible only through an orifice of smaller size
01/17/1989CA1248844A1 Surge suppression device
01/12/1989DE3721350A1 Device for shutting off gas pipes
01/11/1989EP0298635A2 Variable volume reservoir and method for its use
01/11/1989EP0298125A1 Duct lining method
01/10/1989US4796841 Fabric reinforced rubber product having molded isolator bushings
01/10/1989US4796673 Reproduction process of the existing pipeline
01/10/1989US4796669 Product for relining sewers and water pipes
01/10/1989CA1248459A1 Silencer
01/05/1989DE3815232C1 Pipe-widening apparatus, in particular for disposal lines in refuse landfills
01/05/1989DE3721314A1 Process for repairing a buried pipeline
01/05/1989DE3716616A1 Process for the acoustic sealing of tubular bodies
01/04/1989EP0297385A1 Pipeline rehabilitation method utilizing articulated gasketed joint pipe
01/03/1989US4795051 Rupturable fluid pressure relief apparatus and manufacturing method
01/03/1989US4794955 Hose for and method of attenuating fluid pressure pulsations
01/03/1989US4794954 Apparatus and method for prevention of pulsating flow in liquid chromatograph
01/03/1989CA1248156A1 Pipelock
01/03/1989CA1247979A1 Medium-carrying line having at least one restrictor
01/03/1989CA1247869A1 Device and method for removing irregularities in or enlarging an underground duct
12/1988
12/29/1988WO1988010394A1 Process and device for cleansing piping
12/29/1988WO1988010393A1 Apparatus for working in pipes
12/29/1988WO1988010390A1 Safety fitting for a vacuum orifice in a swimming pool
12/28/1988EP0296753A2 Gas stream diffusing and distribution apparatus
12/28/1988CN88103424A Openable active enclosing device for open circular oven
12/27/1988US4793384 Self-damping convoluted conduit
12/27/1988US4793382 Assembly for repairing a damaged pipe
12/27/1988US4793016 Conduit cleaning apparatus
12/22/1988DE3719395A1 Device for shutting off pipelines
12/22/1988DE3718619A1 Closure plug
12/21/1988EP0295479A1 Sealing joint
12/20/1988US4792116 Sandblasting nozzle and control valve assembly
12/20/1988US4791961 Fluid joint swivel coupling
12/20/1988CA1246838A1 Tube expansion process
12/15/1988WO1988009897A1 Method and apparatus for lining passages
12/15/1988WO1988009705A1 Apparatus for selectively rotating a tool relative to the wall of a conduit
12/15/1988DE3717542A1 Method and facility for providing a consumer with pyrolysis gas
12/14/1988EP0295192A1 Device and process to close the walls of a chamber furnace with progressive heating for heating blocks containing carbon
12/14/1988EP0294780A1 Chemical control of root growth in sewers and the like
12/14/1988EP0294727A1 Device for plugging pipelines
12/13/1988US4790568 Apparatus for selective combination of at least one first stationary pipeline for liquids with a plurality of second stationary pipelines
12/13/1988US4790355 Helicoidal ramp dropshaft
12/13/1988US4790313 Sealing device for tubing
12/13/1988US4790058 Clamp
12/08/1988DE3717785A1 Process and apparatus for shutting off a buried gas line
12/07/1988EP0294244A2 Pipeline systems
12/06/1988US4789268 Device and method for removing irregularities in or enlarging an underground duct
12/06/1988CA1246116A1 Frangible fittings
12/01/1988DE3716568A1 Process and apparatus for measuring existing connections on a sewer and fitting new connections at in each case the same location on an inner pipe drawn into the sewer
12/01/1988DE3715653A1 Apparatus and process for repairing a sewer pipe
11/1988
11/30/1988EP0293067A1 Device for preventing separation of spigot and socket connections
11/30/1988EP0293012A1 A fastener for closing and sealing an end of a pipe subjected to internal pressure
11/30/1988EP0292703A2 Process and device for laying plastic pipes
11/29/1988US4787473 Sound attenuating box
11/29/1988US4787420 Plugging apparatus and method using a hydraulically assisted plug expander
11/23/1988EP0292104A1 Method of repairing or replacing piping and inflatable plug
11/23/1988EP0291822A1 Leakproof-cushion for sealing damaged walls of tanks and pipes
11/22/1988US4786525 Pipe linings
11/22/1988US4786345 Impregnating lining with curable synthetic resin
11/22/1988US4785512 Machine for repairing and sealing conduits
11/22/1988CA1245169A1 Safety hose
11/22/1988CA1245093A1 Vent cover
11/17/1988EP0291011A1 Rerounding apparatus
11/17/1988EP0291003A1 Hollow plag for sealing a heat exchanger tube
11/17/1988EP0290995A1 Pipe seal pillow
11/17/1988EP0290787A1 Damper element for pulsating liquid-flows
11/17/1988DE3814747A1 Damping hose for water pipes
11/17/1988DE3715582A1 Damping element for liq. flow systems - is used in IC engine fuel supplies, and consists of housing with inlet and ducts and ridges on disc
11/15/1988US4784585 Electric air compressor
11/15/1988US4784363 Radial pipe mount
11/15/1988US4784174 Drain and shutoff valve assembly
11/10/1988DE3714458A1 Device for joining at least two layers arranged at least approximately parallel to one another
11/09/1988EP0290184A1 Pipe renovation system
11/09/1988EP0289783A2 Application system for installing a flue gas pipe system in a chimney
11/09/1988EP0289653A1 Device for sealing the space between a container opening and a feeding pipe movable relative to the opening
11/08/1988US4783099 For central vacuum cleaning installations
11/08/1988US4782863 Removable shutter for an orifice accessible only through a narrow passage
11/08/1988US4782786 Device to fill and glue all kinds of depressions in inaccessible pipe conduits
11/08/1988US4782727 For performing a cross cutting operation
11/03/1988DE3811537A1 Device for shutting off branches in pipelines
11/03/1988DE3732598A1 Verfahren und entmischungsfreier beton zur sanierung unterirdischer kanalisationen Procedures and entmischungsfreier concrete to rehabilitate underground drainage systems
11/03/1988DE3732597A1 Festkoerpersegmentinnenschalung zur sanierung unterirdischer kanalisationen Festkoerpersegmentinnenschalung for renovation of underground drainage systems
11/03/1988DE3712955A1 Insulating sleeve for joining locations of pressurised-water-channelling plastic pipes