The combination of a flexible pipe, e.g. plastic, and a reinforcing member mounted around the pipe to strengthen the pipe and to enhance its ability to resist deformation under load. In one embodiment the reinforcing member includes a flexible perforated plastic netting containing an aggregation of lightweight...http://www.google.sh/patents/US6851454?utm_source=gb-gplus-sharePatent US6851454 - Reinforcing support for plastic pipe
