Support unit

摘要

A lightweight manually transportable unit, effective in supporting a heavyweight tubular member including a spaced pair of beams each formed of a set of plies of corrugated cardboard and having a recess with a curved cross-sectional configuration, aligned with the recess of the other of such beams, and an enclosure formed of planar and curved panel formed of corrugated cardboard encompassing such spaced beams, wherein the plies of such beams and the enclosure encompassing such beams are secured together by a biodegradable adhesive.

主权项

1. A lightweight, manually transportable unit disposable on the bed of a trench, effectual in supporting a heavyweight tubular member comprising:
a pair of spaced beams each formed of a set of plies of corrugated cardboard and having a recess with a curved cross-sectional configuration, aligned with the recess of the other said beams; and a single enclosure formed of planar and curved panels formed of corrugated cardboard encompassing said pair of spaced beams for completely enclosing the pair of spaced beams, wherein said plies of said beams are secured together and said enclosure encompassing said pair of spaced beams are secured together by a biodegradable adhesive, wherein the enclosure comprises a planar bottom wall, opposed first and second planar side walls, opposed front and rear planar walls, and a top wall secured together by the biodegradable adhesive, the planar bottom wall attached to bottom surfaces of the pair of beams, the opposed first and second planar side walls attached to outer side surfaces of the pair of beams, the opposed front and rear planar walls attached to respective front and rear ends of the beams, and the top wall comprising a central curved panel having two ends each resting on and attached to a respective said recess and flanking planar panels each resting on and attached to an upper surface of a respective said beam.