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Patent Searching and Data


Matches 801 - 850 out of 5,814

Document Document Title
WO/1997/021953A1
A pipe connector has a coupling (22) with a first cylindrical land (34), a second cylindrical land (36), and a third cylindrical land (38). There is a first annular recess (42) defined between the first cylindrical land (34) and the seco...  
WO/1997/018412A2
(57) Abstract An apparatus for forming electrofusion saddle couplers includes a first longitudinally movable rotatable arm (24), a second rotatable arm (32) movable perpendicularly to the first arm, and an operating head (42) attached to...  
WO/1997/016299A1
An apparatus for making multilayer fluid conduits (10) includes an extruder (80) delivering a thermoplastic material selected from chlorinated polyvinyl chloride, polyvinyl chloride, acrylonitrile-butadiene, polyurethane and combinations...  
WO/1997/015777A1
A device for joining a tube (3) to a cylindrical coupling (1) defined by a front surface (6) and a coupling sleeve (11) of which a first section (12) comprises releasable fastening means (13) engageable with aligned means (5) on the coup...  
WO/1997/013996A1
A sleeve (10) has a sleeve-shaped body (12) made of thermoplastic material for joining pipes (24) made of thermoplastic material. A heat conductor (18) is embedded in the sleeve body (12), close to its inner wall (14). A ring-shaped ridg...  
WO/1997/010463A1
The invention relates to electrofusion couplers (1) and has for its objective to enable the employment of relatively thin wire electrical resistance heating wire (5) with a substantial guarantee of uniform heating along the length of the...  
WO/1997/006380A1
A pipe joint (1) comprises a hollow body member (2) having a passageway (3) therethrough for receiving a pipe, a segmented gripper means (7) positioned in a first circumferential tapered channel (5) in the hollow body member and moveable...  
WO/1996/041985A1
The present invention relates to a method for making joints (10) between pipes. A first pipe part (1) to be connected is made of plastic material and it has an original inner diameter (D1), which is smaller than the outer diameter (D2) o...  
WO/1996/042183A1
A handheld power control device (10) adapted to be connected to an external power supply for controlling the electric power applied to a heating coil (60) positioned in a fusible area of a thermoplastic pipe joint for thermally fusing th...  
WO/1996/038288A1
A dimensionally heat recoverable tubular article (1) is made by spirally wrapping cross-linked polymeric sheet (3) a number of times, and directly fusing together overlapping layers (5) of the cross-linked sheet (3) to form a consolidate...  
WO/1996/036830A1
The pipeline is made from extruded plastic composite piping with a sleeve connection (21) and provided with a base pipe (20) to which a perforated strengthening layer is applied and preferably fixed with adhesive. An outer layer (22) con...  
WO/1996/029194A1
A method for the manufacture of an electrofusion fitting, which comprises the following steps: (i) assembling an electrical heating element and a layer of thermoplastic polymeric sheet material (13) on a support member (1); (ii) heating ...  
WO/1996/028685A1
The invention concerns a hat-shaped connection sleeve (5) for the fluid-tight joining of house service connections to a sewer pipe (1) relined with a thermoplastic inliner (3). The connection sleeve (5) comprises a thermoplastic flange (...  
WO/1996/028683A1
A joint (4) between polymeric coated (6) metal pipelines (2) is covered with an adhesive (12) lined heat recoverable sleeve (10) positioned to overlie the coating (6) on either side of the joint (4). Prior to recovery of the heat recover...  
WO/1996/026380A1
The technical problem addressed by the invention is that of obtaining a metal-plastic pipeline with greater load-carrying capacity and low hydraulic wastage, improving the stability of the production process, and facilitating in technica...  
WO/1996/023999A1
In a joint for joining a first and a second part so that these first and second parts maintain a predefined rotational position in relation to each other, where the joint comprises an internal thread (33) in the first part (34), which in...  
WO/1996/019718A1
Pipes (12) are attached to a connector by heating its wires (19) to cause the plastics of the pipes and connector to melt. The wires (19) are then used as strain gauges. Connection betwwen pipes (12) and connectors in a pipe system are m...  
WO/1996/018843A1
One or a plurality of valve-operated branch pieces can be attached to any point of any pipe. To this end, two opposite openings (16, 18) are made in the pipe (10), and a branch valve body is clamped about the pipe in bracket-like manner ...  
WO/1996/014533A1
A pipe coupling (6) formed by engagement between a metal pipe or pipe fitting (7) and a plastics pipe end (8) wherein the plastics pipe end (8) is overmoulded over the metal pipe (7) or pipe fitting; characterised in that prior to format...  
WO/1996/012911A1
A pipe joint for fiber reinforced composite pipe (10, 13) has internal and external matching tapers (11, 14) with a low taper angle. A half round helical groove (16) is formed in each of the internal and external tapers (11, 14) for rece...  
WO/1996/009487A2
A pipe coupling assembly for use with at least one terminal end of a fluid transfer pipe having an inner tubular member for transferring fluid, an outer tubular member, and an interstitial space therebetween. The pipe coupling assembly c...  
WO/1996/007049A1
A connector assembly (10) for connecting the ends of two pieces (12, 14) of conduit or other substantially cylindrical objects including a spirally-wound sleeve (18) and an elastic tube (16). The sleeve (18) is positioned to cover both c...  
WO/1996/007048A1
A push-fit pipe coupling comprises a plastic body (1) defining a socket (3) adapted to receive a pipe end. The coupling body is moulded in an expanded configuration in which the socket has an internal diameter which is substantially cons...  
WO/1996/005440A1
The invention provides a bi-material tubing (20, 120, 220) formed of a composite member (22, 122, 222) and a noncomposite member (24, 124, 224). The tubing (20, 120, 220) has a locking portion where the composite member (22, 122, 222) is...  
WO/1995/033948A1
Mechanical pipe adapters are provided by this invention which include a gland (25) for fitting around the circumference of a first pipe (20). The gland (25) includes an annular recess (21) located along its inner diameter and an aperture...  
WO/1995/032383A1
Cable, wire, optical fibre and other elongated objects may be encased in a tube (1d) which has a longitudinal axis and is made from an elongated strip of oriented crystalline thermoplastic polymer film, wherein the strip is memory-set in...  
WO/1995/030534A1
The proposal is for a device for butt-welding plastic sections, especially pipes. The sections to be welded are coaxially positioned and relatively axially moved by means of clamping devices. The faces of the sections to be welded are ta...  
WO/1995/024580A1
A connection for providing a sealed connection between a ducting (11) and rigid coupling (12) includes a sleeve-like flexible membrane (13) provided internally of the ducting (11) at the free end (14) thereof, the membrane (13) being sec...  
WO/1995/016874A1
The method proposed for establishing a link between a main line carrying a fluid and a fluid-takeoff line is carried out by means of a pipe-broaching unit. The pipe broaching unit has, located in a drilling-bit guide pipe (1), a drilling...  
WO/1995/015253A1
A heat fusion coupling element comprising: a hollow sleeve member (2) formed from a fusible polymeric material, the sleeve member having at least one electrical heating element (3, 4) disposed about its inner (5) and outer (7) surfaces, ...  
WO/1995/013434A2
An access gully comprises a pot (702) with an outlet and a dip-tube trap (712) and an upper housing (720) connected to the pot and comprising an inlet grid (724) and an inlet pipe access (726) in an upper region. The grid is above the di...  
WO/1995/012086A1
The subject invention provides a flangeless pipe joint for polymer-lined transfer or polymer-lined process piping, in particular slip-lined, loose-lined, interference fit, or swaged polymer-lined piping systems. The subject invention fur...  
WO/1995/008854A1
A welding sleeve has a heating element (5) which consists of a resistance wire (6) mounted on a winding support (3). The ends of the resistance wire are inserted in slits of the retaining elements formed on the winding support (3), such ...  
WO/1995/008431A1
The invention relates to pipe couplings and particularly to apparatus for connecting adjacent ends of plastics pipes, the connection of fittings to pipe ends, or the connection together of pipe fittings. Plastics pipes and fittings are i...  
WO/1995/008432A1
A data exchange process between a thermoplastic, electrically weldable joining element and a data-processing welding device assures and inspects its quality. The electrically weldable joining element has an integrated, bi-directional dat...  
WO/1995/008735A1
Intermediary part comprised of two metal tubular parts of which the first part (2) is connected by any known means to a metal tube. The second part (3), intended to be connected to a plastic material (2), comprises a sleeve (4) made of p...  
WO/1995/007432A1
An electrofusion pipe fitting (1) comprises: a hollow thermoplastic sleeve member (2), an electrical heating element (7) disposed within the hollow sleeve member, electrical terminals (8) disposed on an outer surface of the hollow sleeve...  
WO/1995/006221A1
A device for tightly connecting two mutually opposite pipe ends (1, 2), provided in each case with a socket sleeve (5) connected to one end (2), a tubular insert (4) connected to the other pipe end (1) and receiving the socket sleeve (5)...  
WO/1995/003162A1
An electrofusion coupler (14) is slid over one of two thermoplastic pipes (10, 12) each having a layer or layers of reinforced fibres (34) between the centre of the wall of the pipe and the outside surface (38). The end surfaces are trim...  
WO/1995/003508A1
A coupling for engagement with the outer surface of a polymeric pipe, having a sub-assembly of a compression sleeve (24), a resilient gasket ring (18) permanently attached to the inner end of the compression sleeve (24), a gripping membe...  
WO/1995/002782A1
A fitting (1) for a plastic pipe (11) which is capable of maintaining a uniform seal ability regardless of deformation of pipe owing to a temperature change and aging. The fitting (1) has a fitting body (2) having an outer thread (7) and...  
WO/1995/000795A1
A coupling device for joining ends of pipes together or capping an end of a single pipe. The device includes a metal insert (6) having serrations (10) for engaging an inner surface of a plastic pipe (7), a deformable coupling member (2) ...  
WO/1994/028343A1
A device (10) for connecting a pipe to a hollow body (7) with a plastic wall, in particular to a deformed pipe liner part with a plastic wall, comprising a feed-through pipe (11) which can be inserted into an opening in the wall of the b...  
WO/1994/026502A1
A combined electric plug connector establishes a combined connection between supply equipment and an electric welding sleeve (M) with an integrated heating component (E) and an electronic information carrier (I) on a printed circuit boar...  
WO/1994/024477A1
A coupling member (1) for use in forming a spin-welded joint between adjacent ends (6, 7) of plastics pipes (8, 9) comprises an elongate sleeve (2) having a longitudinal bore (3), opposite ends (4, 5) of the bore (3) constituting sockets...  
WO/1994/024479A1
A plastics pipe joint has internal seal rings (21) and end caps (11) retaining these. Each end cap has an outwardly extending guide sleeve or skirt (31) for guiding pipe ends into the coupling sleeve, particularly in the case of pipes of...  
WO/1994/024475A1
A pipe coupling is provided with means to fix at least a pipe end. The fixing means comprise a stub (1) and a sleeve (5) extending radially outside it at a distance so as to provide between these an annular depression (13) in which the p...  
WO/1994/024478A1
A method of covering a pipeline, which can be carried out either in the factory or in the field comprises enveloping the pipeline with a covering such as a helically wound tape (20) comprising a heat recoverable layer (21), having first ...  
WO/1994/023234A1
A low carryover fitting assembly for coupling tubing (64) to a device (18) having a sealing surface (16) is presented. The fitting includes a ferrule (220) having a conical head (222) for seating against the sealing surface (16). The fer...  
WO/1994/023237A1
The pipe joint proposed includes a connector (1) with at least one spigot (2, 2', 2") on which the end (6) of a pipe made of thermoelastic, cross-linked polyolefin is fixed by opening out and self-reforming to form a secure, gastight joi...  

Matches 801 - 850 out of 5,814