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 21 - Joints with sleeve or socket
Patents for F16L 21 - Joints with sleeve or socket (9,147)
11/1989
11/07/1989US4878698 Restraining pipe joint
11/02/1989WO1989010476A1 Air transfer system
11/02/1989EP0340110A1 Connecting device for pipelines made of plastic
10/1989
10/25/1989CN1036629A Disconnectable conector for pipes and bars
10/18/1989CN2046172U Fast movable joint of pipeline
10/17/1989US4874193 Heat-recoverable composition coupling device
10/17/1989US4874192 Pipe joint gland reinforcing structure
10/17/1989US4874191 Flue gas conduit connector
10/03/1989US4871180 Seal construction in bell and spigot type concrete pipe connection
10/03/1989CA1262158A1 Retainer ring for coupling together water supply pipes or the like
09/1989
09/27/1989EP0334380A2 Locked socket coupling device
09/27/1989EP0333950A1 Improvements in or relation to tube couplings
09/26/1989CA1261897A1 Connector assembly for fiber-reinforced plastic pipe members
09/19/1989US4867488 Restrained joint with gripper gland
09/19/1989US4867482 Lugless pipe couplings
09/05/1989US4863203 Seal attachment for tubing
08/1989
08/17/1989DE3803729A1 Plug-in socket seal for concrete pipes
08/16/1989EP0327827A1 Welded metal pipe with a socket, particularly a rainwater downpipe
08/16/1989CN2042921U Rapid jointing device for threadless pipeline
08/15/1989US4856826 Air transfer system
08/09/1989CN2042556U Joint for running water pipe
07/1989
07/27/1989DE3801748A1 Plug-in-socket seal
07/26/1989CN1034254A Gasket for locked telescopic joints
07/25/1989US4850603 Gasket for sealing the gap between two elements
07/20/1989DE3843738A1 Clamp for connecting rigid metal pipes
07/18/1989US4848808 Mechanical pipe joint
07/18/1989US4848805 Packing for telescopically locked pipe joints
07/13/1989WO1989006331A1 Pipe joints
06/1989
06/27/1989US4842306 Pipe coupling
06/22/1989DE3742335A1 Elastomer strip with integrated granules at the pressure point
06/14/1989CN2039375U Mechanical joint
06/06/1989US4836586 Composite coupling
06/06/1989CA1255239A1 Tubular article
05/1989
05/31/1989CN2038587U Pipe line parts structure
05/31/1989CN2038586U Cast iron rapid joint pipe
05/30/1989US4834428 Pipe connector having an integral sealing member and method of making
05/30/1989CA1254920A1 Pipe coupling
05/24/1989DE3738754A1 Lining for chimney walls
05/23/1989US4832375 Drainage element
05/16/1989US4830408 Connector assembly
04/1989
04/25/1989US4824148 Device for sealingly fixing a tube or pipe to an end coupling
04/19/1989EP0312460A1 Disconnectible element for joining two closed vessels together
04/19/1989EP0312317A2 Pipe couplings
04/19/1989CN2036234U Connecting means between thin-wall stainless-steel pipe and joint
04/18/1989US4821818 Tube auger sections
04/18/1989CA1252810A1 Sealing or coupling device
04/11/1989US4819968 Pipe joint
04/05/1989EP0310534A1 Sealing ring for locking telescopic joints
04/04/1989US4818209 Mould and sealing ring
03/1989
03/29/1989CN2035036U Double-function movable joint for pipeline
03/29/1989CN2035035U Fire-fighting steam joint
03/23/1989DE3828971A1 Sealing ring for sealing glass-fibre-reinforced-plastic pipes
03/23/1989DE3729848A1 Clamping connectors
03/21/1989US4813720 Band clamp with improved clamping arrangement
03/21/1989US4813718 Clamping collar
03/14/1989CA1251239A1 Tube coupling
03/14/1989CA1251104A1 Composite structure and method and apparatus for making same
03/09/1989WO1989002050A1 Root-repelling pipe joints
03/09/1989DE3830874A1 Pipe coupling
03/02/1989DE3728034A1 Pipe coupling
03/01/1989CN2033467U Flexible pipe union jointed under pressure
02/1989
02/28/1989US4807912 Pipe coupling
02/21/1989US4805932 Joint secured against sliding
02/21/1989EP0293430A4 Band clamp with oversize bolt holes.
02/08/1989EP0302618A1 Connecting device
01/1989
01/26/1989DE3723656A1 Shaped drainage block consisting of concrete
01/18/1989CN1030468A Quick connect coupling
01/03/1989US4795199 Clamping sleeve for pipes
01/03/1989CA1248156A1 Pipelock
12/1988
12/13/1988US4790574 Apparatus for coupling tubular members
12/13/1988US4790058 Clamp
12/07/1988EP0293430A1 Band clamp with oversize bolt holes.
11/1988
11/29/1988US4787656 Capillary tubing coupler
11/17/1988WO1988008784A1 Plastic tube with solid cross-ribs on the outer surface, a moulding device therefor; installation comprising such a device and a method for moulding a plastic tube
11/17/1988EP0291136A1 Plastic tube with solid crossribs on the outer surface, a moulding device therefor; installation comprising such a device and a method for moulding a plastic tube
11/09/1988EP0289991A2 Fluid catalytic cracking unit catalyst transfer and distribution system and process
11/08/1988US4783099 For central vacuum cleaning installations
11/08/1988CA1244502A1 Ring
11/08/1988CA1244232A1 Tubing joint
11/02/1988EP0288993A1 Device for joining the coaxial ends of two pipes without mandrels together
10/1988
10/25/1988US4779903 Sealing ring
10/25/1988US4779900 Segmented pipe joint retainer glands
10/19/1988CN88203879U Damping joint of gas current pipeline
10/11/1988CA1243057A1 Pipe restraint device
09/1988
09/28/1988EP0211003A4 Device for connecting vascular members.
09/27/1988US4773680 Pipe couplers
09/07/1988CN87216871U Jointer for fixing pipeline
09/06/1988US4768813 For sealing leaks in an existing pipe
09/06/1988US4768278 Method of manufacturing a joint for connecting a spigot to the bell of a pipe or coupling
09/01/1988DE3801149A1 Pipe connection arrangement
08/1988
08/31/1988CN88210057U Serial unthreaded pipe connections
08/18/1988DE3703580A1 Driving tube and process for producing a tunnel in underground shield driving
08/17/1988CN87216064U Corrosion-resisting fast-connected pipe
08/16/1988US4763695 Coupling hose assembly
08/10/1988EP0277575A1 Pipe coupling
08/03/1988EP0276785A2 Manufacture of sealable and insertable concrete pipes
08/03/1988CN87215516U Joint type butterfly valve apparatus
08/02/1988CA1239956A1 Coupling device for making a permanent pipe connection
07/1988
07/20/1988EP0274883A1 Pipeline joint
07/20/1988CN87210685U Quick jointer for pipe or tube
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