Patents for F16L 39 - Joints or fittings for double-walled or multi-channel pipes or pipe assemblies (3,760)
06/1989
06/13/1989CA1255714A1 Sealed fluid swivel joint
06/06/1989US4836305 Drill pipes and casings utilizing multi-conduit tubulars
05/1989
05/30/1989US4834825 Assembly for connecting multi-duct conduits
05/24/1989EP0317424A1 Coupling device for a body and an axle arranged in that body, and a vehicle suspension cylinder using the device
05/24/1989DE3738305A1 Device for the radial feed of hydraulic fluid and/or cooling fluid to hydraulically actuated switching elements
05/23/1989US4832381 Seal
05/03/1989DE3833684A1 Zweikanalige drehdurchfuehrung zum unabhaengigen beaufschlagen von druckraeumen in umlaufenden systemen Two-channel Floating dredgers to apply independent of druckraeumen in rotating systems
05/02/1989CA1253435A1 Integral buoyant riser
04/1989
04/11/1989US4819966 Sealing means for a multipath, multipass swivel
04/06/1989DE3731943A1 Remotely controllable device for connecting pipe flanges
04/06/1989DE3731941A1 Remotely controllable device for connecting pipe flanges
04/06/1989DE3731938A1 Remotely controllable device for connecting pipe flanges
03/1989
03/21/1989CA1251392A1 Sealing means for a multipath, multipass swivel
03/15/1989EP0129548B1 Symmetrically loaded flexible connector having multiple passageways
03/01/1989EP0304425A1 Multi-path fluid swivel
02/1989
02/28/1989US4808031 Pipeline joint protector
02/22/1989EP0303989A2 Butt connection for two concentric-pipe lengths
02/21/1989US4805943 Rotary/reciprocating seal apparatus
02/21/1989CA1250226A1 Subsea flowline connector
02/15/1989CN1031123A Drill pipes and castings utilizing mult-conduit tubulars
02/08/1989EP0302632A1 Drill pipes and casings utilizing multi-conduit tubulars
01/1989
01/25/1989CN1030635A Flow speed equalizer for branches of pipe line
01/18/1989EP0299471A2 Liquid respectively gas cycle, particularly for a hot water or a heating water system
01/17/1989CA1248991A1 Chemical agent and water proof connector for liquid conditioned suit interface
01/10/1989US4796924 Coupling for multi-passage tube
01/10/1989US4796615 Connector for esophageal probe
01/03/1989US4794937 Plug coupling
12/1988
12/28/1988EP0255517B1 Distribution case for heat exchanger, with rapid connection
12/28/1988CA1247379A Coupling for a fuel manifold
12/22/1988DE3718975A1 Connecting device for joining a casing-pipe portion to a counter-flange
12/21/1988EP0295444A2 Pipe connection for a hot fluid conduit
12/15/1988DE3718814A1 Connection member for water meter
12/13/1988US4790699 Air feed tube assembly for a pneumatic chuck
12/13/1988CA1246630A1 Rotatable pipe coupling for a plurality of incoming and a plurality of outgoing pipes
12/08/1988DE3718058A1 Rotary feed for pressure medium
12/06/1988US4789188 For interconnecting two lengths of pipe
12/06/1988CA1246024A1 Bulk syrup delivery system
11/1988
11/23/1988EP0291753A2 Dispensing device for double compartment cartridges
11/22/1988US4786061 Safety rotary transmission with face seal
11/15/1988US4784410 Concentric piping flex joint
11/08/1988US4782852 Assembly for perfecting fluid distribution in multiple conduits
11/08/1988US4782684 Bending machine
11/02/1988EP0288842A1 Coupling between the air pressure system on board of a floating dredger with the air pressure pipes arranged on the suction pipe
11/01/1988US4781702 Three-way connector for liquid exchange
11/01/1988US4781404 Multi-path fluid swivel
11/01/1988US4781402 Metal chimney assembly
11/01/1988US4781215 Package wrapping machine system
10/1988
10/25/1988US4779652 Unitary double wall piping system
10/25/1988US4779645 Coupling arrangement
10/13/1988DE3711479A1 Sealing element for creating a sealing connection between two units
09/1988
09/13/1988US4770207 Fluidic system
08/1988
08/23/1988US4765658 Fluid box for a heat exchanger, in particular for a motor vehicle, and a rapid action coupling for connecting it to a fluid circuit
08/18/1988DE3703841A1 Pipeline system with two line trains
08/11/1988WO1988005883A1 Concentric piping flex joint
07/1988
07/26/1988US4759573 Multi-passage swivel joint combining flexible and sliding means
07/26/1988US4759571 Fluid transfer module with multiple flow paths
07/12/1988US4756559 Swivel joint for fluid pipes
07/06/1988CN87205186U Hydraulic lifting device with lining colloid for conveying pulp
07/05/1988US4754813 Tree capless cone seal manifold
07/05/1988US4754782 Hose assembly & clip therefor
06/1988
06/28/1988US4753268 Double coupling for removably joining twin pipes
06/01/1988EP0269471A1 Hydraulic rotary transfer joint with a stabilised temperature
06/01/1988DE3639524A1 Rotary lead-through for the segmental passage of pressurised fluid
05/1988
05/31/1988CA1237421A1 Rotary drive coupling
05/26/1988DE3639342A1 Rotary/pivoting lead-through
05/24/1988US4746130 Flat gasket-type seal for placement between machine parts including hydraulic control panels
05/10/1988US4743162 Fluid transfer seal for transferring fluid across a rotating boundary
05/03/1988US4741562 Multi-cell conduit connection joint
04/1988
04/19/1988US4738187 Self-lubricating hydraulic actuator for power chuck
04/12/1988US4736769 Device for introducing an additive liquid into a carrier liquid flowing in a pipe
04/07/1988DE3632677A1 Revolving hollow clamping cylinder
03/1988
03/30/1988EP0262081A1 Light weight flexible coaxial vapor recovery hose
03/22/1988US4732414 Joint for coaxial pipe
03/09/1988EP0259236A1 Double connection for the removable joint of twin pipes
03/08/1988US4729773 Unit for degassing liquids
02/1988
02/25/1988WO1988001358A1 Loading and locking mechanism and seal
02/11/1988WO1988001032A1 Pipeline joint protector
02/11/1988WO1988000924A1 Device for connecting selectively at least one first stationary line for a fluid with a plurality of second stationary lines
02/10/1988EP0255517A1 Distribution case for heat exchanger, with rapid connection.
02/09/1988CA1232627A1 Marine riser coupling assembly
01/1988
01/28/1988DE3625379A1 Pipe connection piece
01/27/1988EP0254669A1 Metallurgical vessel with tilting trunnion especially steel converter
01/07/1988EP0251882A1 Device and method for positioning and connecting by remote control a curved connector
01/07/1988EP0250424A1 Rapid connection device for a fluid circuit
12/1987
12/23/1987EP0250369A1 Three-way valve
12/23/1987EP0249831A2 Safety rotary transmission
11/1987
11/24/1987US4708178 Fluid coupling system
11/17/1987US4706364 Process for connecting an element to one end of a tube of composite material and device thus obtained
11/11/1987EP0245036A1 Fluid flow or pressure transmission device
11/05/1987WO1987006674A1 Multi-path fluid swivel
10/1987
10/28/1987EP0243037A2 An air feed tube assembly for a pneumatic chuck
10/21/1987EP0241700A1 Rotational and/or swivelling joint
10/13/1987US4699191 Hose coupling mechanism
10/08/1987DE3610947A1 Connection
10/06/1987US4698273 Alternate layers of iron and ferromagnetic iron compounds
09/1987
09/24/1987DE3609876A1 Swivel
09/22/1987US4694859 Undersea hydraulic coupling and metal seal
09/15/1987US4693079 Multi-partite exhaust gas line
09/01/1987US4690221 Well tubing hanger method and apparatus for use in well control
08/1987
08/26/1987EP0233302A1 Fluidic system with a measuring device
1 ... 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38