Temporary support

摘要

A self-supporting, readily erectable and transportable mast that includes a pneumatically inflatable elongate tubular member useful for providing structural support when raising various types of equipment above the ground. Included in the tubular member are woven or interwoven textile reinforcing strands arranged in one or more layers that may be laid at various angles useful for reinforcing and strengthening the tubular member when raised.

主权项

1. A tubular member comprising:
an elongate pneumatically inflatable tubular member formed from a fused flexible wall material extending along a longitudinal axis between a first end and a second end, the first end, second end, and fused flexible wall material defining a closed tubular member; an inflation valve positioned at or near the first end of the tubular member and configured to pneumatically inflate the tubular member; the fused flexible wall material having:
an inner layer formed from a material selected from rubber and plastics;an outer layer formed from the same material as the inner layer; internal reinforcing strands between the inner and outer layers, wherein the internal reinforcing strands include textile strands helically laid at an angle to the longitudinal axis of 30 degrees or less; wherein the inner and outer layers have been fused together through the interstices of the reinforcing strands; and wherein the tubular member is collapsed when deflated and is substantially inflexible supporting an object above the ground when inflated to a pressure of between 10 and 20 psi (6.89 to 13.79*104 pascals).