FASTENING DEVICE Russian patent published in 2007 - IPC E04C5/00 E04B2/86 

FIELD: building, particularly devices for reinforcement and other members fixation.

SUBSTANCE: fastening device comprises curvilinear section immersed in hardening material and bent end. The curvilinear section and bent end are made as a single whole of wire and formed as flat spirals. The first spiral may be unwound to create conical screw line and grouted with hardening material. Another spiral has insulation shell and may be unwound to create socket on structure to be formed of hardening material after isolation shell removal.

EFFECT: decreased material consumption and structure production costs, increased operational reliability and manufacturing capabilities and extended fastening device range.

1 cl, 1 dwg