Vinidex Tubemakers Pty. Limited

Other

Uponor B.v.

Uponor Innovation Ab

Vinidex Pty Limited

Vindex Tubemakers Pty. Limited

Upnor N.v.

Peter Glanville Chapman

Jyri Jaakko Jarvenkyla

Allan Kenneth Wallace

Leslie Herbert Cowling

Eino Holso

George Macovaz

Joshua Stanley Gotham

Garry Kevin Callinan

James Victor Henwood

A method of modifying compressive strains in formation of a pipe ring groove (), in which a differential temperature profile is established across the pipe wall in a narrow bending locus (l) corresponding to the ring groove position, and the material is bent to form the ring groove. The temperature differential creates a differential in elastic modulus between the inner and outer surfaces of the pipe material, modifying the strain induced in inner concave and outer convex surfaces of the ring groove during the bending step.

Socketing of pipe

A foundation comprising one or more layers or mattresses of tires, and a fill material provided within and/or between tires of each of the mattresses. The fill material is preferably a relatively coarse aggregate and provides a porous bed having relatively high drainage capacity. The lowermost mattress is typically wrapped in a porous sheet such as a geofabric cloth which is designed to allow the passage of water across the lowermost mattress whilst preventing the ingress of relatively finer material into the fill material and which can otherwise lead to degeneration of the foundation. At least some of the tires typically also have an upper sidewall removed therefrom.

Tire foundation structure

A continuous process and apparatus for producing oriented plastic tube comprising the steps of extrusion, temperature conditioning, diametrical expansion and cooling, characterized by the step of inducing axial draw of the tube between first and second haul-off means located upstream of the expansion step.

Biaxial stretching of plastic tubes

Control method for the manufacture of oriented plastic tubes

Expandable plug and control method

Sizing apparatus

A circumferentially or biaxially oriented plastics pipe comprising a body with an integral socket at one end thereof The socket has a wall of lesser axial draw than the body of the pipe.

Pipes with integral sockets

Growing community of inventors

Greenwich, Australia

Peter Glanville Chapman