Abstract:
The present disclosure is directed to a method of welding a gasket (14) to a spigot portion (18) of a pipe section (14). The method includes supporting the gasket (14) in a recess (24) on the spigot portion (18) of the pipe section (14). The gasket (20) includes a seating portion and a sealing portion. The sealing portion includes a first shoulder portion and a second shoulder portion. A first bonding portion extends from the first shoulder portion and a second bonding portion extends from the second shoulder portion. The first bonding portion and the second bonding portion are provided to bond the gasket (14) to the spigot portion (18). The method further includes heating a portion of the gasket (14) and an adjacent surface of the spigot portion (18) and applying a force onto the portion of the gasket (14) following the application of heat to fuse the gasket (14) onto the spigot portion (18).
Abstract:
The invention concerns a combination (1) of a structural element (10), a corrugated pipe (20) and an annular elastic seal (30). The seal (30) is to provide a watertight seal between the structural element (10) and the pipe (20) when an outer flange portion (31) at a first end (32) of the seal (30) abuts against a mouth area (12) of an orifice (11) in said element (10) and a remainder of the seal (30), including a second end (33) of the seal (30), is inserted in the orifice (11) and the pipe (20) is extending through an entire length of the seal (30). The seal (1) comprises a mid portion, which is arranged between the outer flange portion (31) and an inner flange portion and comprises a central cavity (41). When seen in cross-section in a no-load condition, the mid portion comprises a straight base, a ramp, which rises in relation to the base from said first end (32), a first wall and a second wall connecting the base and the ramp, and a central cavity arranged between the first and second wall and between the base and ramp. The cavity (41) has a width corresponding to at least a distance between two crests (22) of the pipe (20) and a height corresponding to about half said width. The second wall has a height corresponding to about twice a height of the first wall and a width corresponding to at least a valley (23) between two crests (22) of the pipe (20).
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Aufbringen eines radial dehnbaren Dichtungsringes auf die Außenseite eines Rohres (3), dessen Außenoberfläche mit wenigstens einer ringförmig umlaufenden Vertiefung zur Aufnahme des Dichtungsringes (7) ausgebildet ist. Erfindungsgemäß wird der Dichtungsring (7) mittels einer drehbaren Halterung (2) auf eine solche Drehzahl gebracht, dass sein Innenradius durch Fliehkraft und Dehnung größer als der maximale Außenradius des Rohres (3) im Bereich der äußeren Oberfläche des Rohres wird. Dann kann der Dichtungsring im drehenden Zustand vom Ende des Rohres (3) über den Bereich des maximalen Außenradius des Rohres bis zu der Vertiefung geführt werden. Nach Absenken der Drehzahl des Dichtungsringes (7) tritt der Dichtungsring durch Rückdehnung in die Vertiefung des Rohres ein. (Fig. 1)
Abstract:
The invention relates to a plastic pipe (1) comprising at least one connecting point (2) for connection to another plastic pipe (3) or to another connecting piece, wherein the connecting point (2) has a sealing area. A reinforcement (5) is applied to the connecting point (2) in the sealing area and substantially or completely prevents the plastic of the connecting point (2) from creeping in the sealing area. The invention also relates to a method and devices for producing a corresponding plastic pipe.
Abstract:
A corrugation (130) has a radially inner wall (146) circumferentially surrounding an axis (113). The inner wall (146) defines an inner cavity (150) configured to conduct a liquid axially through the inner cavity (150). A radially outer wall (156) of the corrugation (130) overlies the inner wall (146). The outer wall (156) adjoins the inner wall (146) so as to form a closed outer cavity (160) bounded by the inner and outer walls (146,156) and separated from the inner cavity (150) by the inner wall (146). The inner wall (146) has at least one opening (162) providing fluid communication between the inner and outer cavities (150,160) for the corrugation (180) to serve as a reservoir for the liquid.
Abstract:
A flexible bellows tube connecting pipes (2) in a system such as a vehicle exhaust system (4). Various embodiments are disclosed, with each including two conduit sections having mating corrugations that overlap to provide a seal while allowing the two sections to rotate in response to torsion loading. Different configurations of the interfitting corrugations and related structure are disclosed in the different embodiments.
Abstract:
Die Erfindung betrifft einen Dichtungsring für ein mit äußeren Wellen versehenes Kunststoffrohr, wobei die Dichtung in einem Wellental des Wellrohres aufnehmbar ist. Erfindungsgemäß ist der Dichtring als symmetrischer Dichtring mit einer im wesentlichen scheibenringförmigen Hauptdichtung zur Abdichtung gegen ein zweites Rohr und zwei seitlich von einem Grundkörper (1) ausgehenden Stützkörpern (3, 4) zur Anlage an die Wellen des Wellrohres (13) ausgebildet.
Abstract:
This invention concerns a coupling system for a corrugated tube with an inspection well which has two or more ways, in each of which a tube can be fastened. Between the corrugated tube (11) and the well (12) there is a gasket (14), shaped in such a way as to block the corrugated tube axially and radially to the well, making a leak-proof joint between the two coupled parts.