Sola International Holdings Limited

Rib Loc Australia Pty Ltd.

Other

Ian Roger Bateman

Huan Kiak Toh

David Robert Diggins

Bohdan Grzegorz Cieslinski

Gulcay Uysal

Helena Kloubek

Craig Anthony Mayman

An apparatus and method for lining an underground conduit is disclosed. The apparatuscomprises: an annular framehaving a crown portionand a base portion; a strip guide disposed around and supported by the annular frame, the guide arranged to guide a striparound a helical path; a pair of strip pinch rollers mounted to the frameat a position circumferentially about halfway between the crown portionand the base portion; a drive assembly mounted to the frame for driving the stripdownwards into the helical path in a winding direction so as to present an incoming first edge to an adjacent second edge of a wound convolution of the strip; a liquid remover mounted to the frame, the liquid remover arranged to prevent liquid that has adhered to and ascended with the second edge from descending down towards the incoming first edge; and an extrudermounted to the framefor extruding a molten bead of plastic onto the stripat a position just before said overlap.

Underground and partly submerged pipe winding apparatus and method

A composite stripwindable to form a helical pipe is disclosed. The composite stripcomprises: an elongate plastic striphaving a base portionand at least one lengthwise extending rib portionupstanding from the base portion; and an elongate reinforcing stripextending lengthwise and supported laterally by the rib portion, the reinforcing striphaving a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portion. When wound into a helical pipe, the reinforcing stripreinforces the pipe against radial crushing loads. A beadseals the reinforcing stripfrom the environment. Desirably the composite stripfurther comprises: a planar laminaextending lengthwise and bonded to the base portion, the laminahaving a higher Young's modulus and strength than those of the plastic strip. The laminagreatly improves the pressure rating of a pipe wound from the strip

Composite strip windable to form a helical pipe and method therefor

A composite stripwindable to form a helical pipe is disclosed. The composite stripcomprises: an elongate plastic striphaving a base portionand at least one lengthwise extending rib portionupstanding from the base portionand an elongate reinforcing stripextending lengthwise and supported laterally by the rib portionthe reinforcing striphaving a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portionWhen wound into a helical pipe, the reinforcing stripreinforces the pipe against radial crushing loads. A beadseals the reinforcing stripfrom the environment. Desirably the composite stripfurther comprises: a planar laminaextending lengthwise and bonded to the base portionthe laminahaving a higher Young's modulus and strength than those of the plastic stripThe laminagreatly improves the pressure rating of a pipe wound from the strip

An hydraulic control arrangement () in association with a pipe relining machine Includes fluid pressure supply and return lines (), a motor controller () to control a motor () and a radial position controller. The radial position controller supplies fluid under pressure to a radial positioning arrangement () to set diameter of a relined pipe. The radial position controller has a first normally closed valve () supplying fluid under pressure to the radial positioning arrangement () and a second normally open valve () allowing fluid to be withdrawn from the radial positioning arrangement (). The arrangement () allows the pipe relining machine to be withdrawn in the event of a failure.

Hydraulic control arrangement for a pipe relining machine

A crosslinkable polymeric casting composition comprises an aromatic polyvinyl monomer such as divinyl benzene, a polythiol such as pentaerythritol tetrakis-(3-mercaptopropionate), an epoxide strain-reducing agent such as hexanediol diglycidyl ether, and, optionally, a polymerizable comonomer such as polyethylene glycol dimethacrylate.

Casting composition of aromatic polyvinyl monomer, polythiol and epoxy strain reducer

High index/high abbe number composition

A cross-linkable polymeric casting composition including an effective amount of

Growing community of inventors

Happy Valley, Australia

Ian Roger Bateman