TUBE-SHEATH MADE OF COMPOSITE MATERIALS Russian patent published in 1997 - IPC

FIELD: mechanical engineering, sheathing structures having protective layers, protective containers. SUBSTANCE: tube-sheath made of composite materials is composed of inner layer, outer layer and frames with butt protrusions. Embracing butt protrusion of frame of outer layer has radial-axial through slits uniformly arranged over its circular perimeter on side of first of sheath to form segment sectors between them length overlapping width of contacting surface of embraced butt protrusion of frame of inner layer. They are fastened on protrusion by radial rod threaded members. Butt protrusions of frames on side of second end of sheath are mutually unfastened by sliding layers of sheath. EFFECT: expanded application field, improved protective capabilities. 4 dwg