Lining of pipelines and passageways
AssigneeSound Pipe, Ltd.
InventorBrian B. Chandler
Life of this patent
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Abstract
The lining of pipelines and passageways is effected by everting a flexible lining tube containing curable synthetic resin into and along the pipeline or passageway. The resin is of the latent type and requires the application of energy to initiate the cure, after which the cure continues. The cure is initiated by applying energy, e.g. ultrasonic, to the everting face via a device which travels in the pipeline or passageway ahead of the everting face. The device is kept centralised and focuses energy on the center of the everting face. As the respective lengths of the lining pass the everting face and lie on the pipeline or passageway surface they cure to hard condition. The process is dynamic and quick.
Claims11
A method of lining a pipeline or passageway with a flexible tubular lining including curable resin, comprising the steps of
- a) everting the lining into and along the pipeline or passageway;
- and
- b) applying resin cure initiating energy to the everting face of the lining as it passes along the pipeline or passageway.
Dependencies are inferred from the claim text.