Patents for F16L 39 - Joints or fittings for double-walled or multi-channel pipes or pipe assemblies (3,760)
04/1991
04/09/1991US5005735 Dispensing apparatus for operating double cartridges
04/09/1991US5005613 Light weight flexible coaxial vapor recovery hose
03/1991
03/19/1991WO1991004436A1 A twist coupling for vacuum pipes
03/19/1991US5000491 Means for hose clamp replacement
03/19/1991US4999900 Method for installing product monitoring device in underground storage tanks
03/19/1991CA2066251A1 Twist coupling for vacuum pipes
03/12/1991US4998781 Brake device for a hydraulic vehicle brake system
03/05/1991US4996961 For an internal combustion engine
02/1991
02/27/1991EP0414589A2 Double-wall system for a water containment
02/26/1991US4995646 Connector for multiple lines
02/26/1991CA1280781C Coupling arrangement
02/21/1991WO1991002187A1 Means for hose clamp replacement
02/21/1991DE3925293A1 Detachable connection for pipe with plug - is for pressurised medium, and has holder groove, attachment, seal, deflecting groove, and holder ring and plate
02/14/1991DE3926435A1 Tubular connection between two fluid filled receptacles - consists of coaxial connecting fitments with support or extension, metal housing or bushing
02/06/1991EP0190263B1 High pressure product swivel
02/05/1991US4989831 Coupling device
01/1991
01/31/1991DE4022769A1 Multiple coupling for pipe lines - has radially elastic detent engaging in groove in housing of coupling
01/15/1991US4984827 Concentric piping flex joint
01/10/1991DE3921193A1 Pipe connection for double walled pipes - consists of pipe casing with seal, tension piece, locking pieces
01/09/1991EP0406818A1 Method for connecting plastic pipes in a double pipe system, and joint produced by that method
01/03/1991DE4019987A1 Fluid coupling with main cylindrical part - has pivot-mounted shaft and flow duct, with three stepped inner parts and pressure reducing chamber
12/1990
12/19/1990EP0403345A1 Connecting device between two parts of conduit
12/18/1990US4978148 Coupling for multi-passage tube
12/11/1990CA1277690C Rotary joint with balanced seals
11/1990
11/20/1990US4971477 Secondary contained fluid supply system
11/14/1990EP0396905A1 Coupling sleeve for manifold pipe connections and corresponding manifold pipe
11/07/1990EP0396451A2 Swivel joint
10/1990
10/30/1990US4966396 Connection device
10/24/1990EP0393833A2 Connection device
10/09/1990US4961445 Connecting device for connecting liquid consumer to liquid source
10/09/1990CA1275128A1 Pipe coupling
10/02/1990CA1274769A1 Multi-path fluid swivel
09/1990
09/19/1990EP0388118A2 Rotating union with carbon graphite labyrinthine seal
09/13/1990CA2011995A1 Rotating union with carbon graphite labyrinthine seal
08/1990
08/28/1990US4951665 Insulating, anti-kinking Y connector for arthroscopic surgery and method of making
08/21/1990US4949656 Distribution manifold for mobile span-and-tower irrigation systems
08/16/1990EP0382485A2 Insulating anti-kinking Y connector for arthroscopic surgery and method of its manufacture
08/14/1990US4948369 Connector assembly
08/09/1990DE3903565A1 Plug-in opening of a component which receives a plurality of individual lines one beside the other
08/08/1990CA2008708A1 Insulating anti-kinking y connector for arthroscopic surgery and method of making
08/01/1990EP0379812A1 Connecting and joining block between pipelines made of soft and elastomeric material, process and device for manufacturing the same
07/1990
07/17/1990US4941349 Coaxial coiled-tubing cable head
07/12/1990WO1990007674A1 Flexible double-containment piping system
07/10/1990US4940182 Rotary swivel for cab heating system
07/10/1990US4939923 Method of retrofitting a primary pipeline system with a semi-rigid pipeline
07/03/1990US4938509 Multiple port fluid coupler
07/03/1990US4938251 Universal hose adapter for gasoline pump
06/1990
06/28/1990WO1990007074A1 Secondarily contained fluid supply system
06/26/1990CA1270777A1 Three-way connector for liquid exchange
06/21/1990DE3941236A1 Connecting pipe for flow circuit - consists of pipe and sleeve with rapid closure piece
06/19/1990US4934744 Rotary joint for conveying feedwater
06/06/1990CN1042761A Device for interchangeable connection
05/1990
05/29/1990US4928997 Rotating union with carbon graphite labyrinthine seal
05/29/1990US4928530 Pressure transducer
05/23/1990DE3844662A1 Means of securing a hollow-shaft bearing arrangement
05/22/1990US4926571 Connection for connecting compressed-air lines
05/16/1990EP0368024A2 Rotating lead-through for two different fluids
05/09/1990EP0366966A1 Brake device for a hydraulic vehicle brake installation
05/08/1990US4922971 Hose assembly, clip therefor and method of making the same
05/03/1990WO1990004736A1 A union between outer protective pipes of a double-pipe system
05/01/1990US4921010 Swivel connector
04/1990
04/26/1990DE3836326A1 Connecting piece for connecting at least two pipelines which run in different directions and consist, in particular, of thermoplastic, and a process for producing the connecting piece
04/11/1990EP0363328A1 Machine tool spindle
04/10/1990US4915419 Sliding lock plate for hydraulic connectors
03/1990
03/28/1990EP0360632A1 Method for the guide and leak-proof connection of pipes
03/21/1990EP0358852A1 Device for transporting a fluid
03/20/1990US4909669 Pipeline joint protector
03/08/1990WO1990002289A1 Pipe swivel joints
02/1990
02/13/1990US4900065 Quick-connect fluid coupling
02/01/1990DE3825313A1 Device for fastening pressure hoses in connection bores
01/1990
01/25/1990WO1990000515A1 Quick disconnect coupling for use with boom mounts and/or tooling mounts
01/23/1990CA1264574A1 Swivel for an illuminated dental handtool
01/17/1990EP0351155A2 Expandable manifold for water delivery system
12/1989
12/13/1989EP0345283A1 Concentric piping flex joint
12/12/1989US4886305 Double containment pipe fittings and apparatus to adhesively install the same
12/07/1989DE3819086A1 Apparatus for the line conduction of power station flue gases
11/1989
11/14/1989US4880259 High-temperature-resistant type coupling
11/09/1989DE3814176A1 Double-walled pipeline comprising a multiplicity of lengths of pipe which are connected to one another on the end sides
11/07/1989US4878694 Method and device for the remote positioning of an elbow coupling
10/1989
10/24/1989US4875716 Jointed pipe connection, particularly for automotive exhaust pipes
10/04/1989EP0335223A1 Connection piece for joining an inaccessible main to a lateral pipe
10/03/1989US4871196 Double shield fitting
10/03/1989US4870856 Split fittings useful in forming a secondary semi-rigid pipeline over primary pipelines
09/1989
09/21/1989DE3815992A1 Device for channelling a flow medium
09/12/1989US4865354 Conduit coupler
08/1989
08/30/1989EP0329805A1 System of pipes with a double path conduit
08/22/1989US4858962 Articulated joint
08/22/1989US4858961 Rotary joint
08/16/1989EP0328094A2 Doublewalled pipe and connection of coaxial doublewalled pipe sections by means of a connection piece consisting of such a doublewalled pipe
08/08/1989US4854615 Metal sealed joint for large diameter rocket motor casings
08/08/1989US4854612 Tire building drum shaft connection
07/1989
07/26/1989EP0324903A2 Removable connection of an armature with a conduit
07/25/1989US4850616 Flexible joint capable of use in the O'Connor combustor coaxial piping
07/18/1989US4848391 Expandable manifold for water delivery system
07/05/1989EP0323337A1 Connection device for hoses on whichever element, and element provided with this device
07/04/1989US4844514 Rotary joint device for a cryogenic liquid
07/04/1989US4844201 Recirculating oil lubrication system for rotary ring log barkers
06/1989
06/28/1989EP0322358A1 Distribution device for several fluids in multiple conduits
06/14/1989EP0319662A2 Spindle head
06/13/1989US4838079 Multi-channel pipe for monitoring groundwater
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