Ametex Ag

Rachid Keldany

Keith J Shaw

A connecting element including an annular sleeve that has a self-supporting inner wall and a flexible outer wall, and a space between the inner and outer walls for introducing a preferably hardenable free-flowing filling medium into the connecting element to expand the connecting element radially outwardly to contact surfaces of adjacent pipe structures. A feed opening is provided in one of the inner wall and the outer wall to provide access to the space between the walls to permit introduction of the filler material. The connecting element is particularly suitable for sealing the joint between a multi-walled main pipe and a branch pipe extending from the main pipe.

Connecting element

A tube winding apparatus includes a drum having a jacket formed by elongated cylindric members. A number of these members, namely the circumferential rollers, is motor driven basically by the normal drive of the winding apparatus. Such supports the tube and web drive and the feeding or advancing of the tube.

Apparatus for producing a wound plastic tube

A profiled band that includes two longitudinal edges of which one is provided with a groove and a parallel extending rib is allocated to the other one, which mentioned parts form a locked seam when the band is wound to a pipe, which seam is mechanically held in its operational position. The band is specifically suitable for an in situ production of wound pipes having a helically extending seam.

Growing community of inventors

Maur, Switzerland

Rachid Keldany