ONE-TIME LOCKING-SEALING DEVICE Russian patent published in 2003 - IPC

FIELD: locksmith's work. SUBSTANCE: the device has a body, a piece of wire rope with a passive section permanently connected to the body and the working section, spring-loaded locking members, at least one of which is made in the form of a body of revolution, positioned in the body cavity and engageable with the rope working section providing for rope motion in one direction only. At least one locking member made as a body of revolution has a microrelief at least on part of the surface, its hardness is not lower than the hardness of separate short wires of which the rope is twisted. EFFECT: enhanced resistance to breaking in. 9 cl, 9 dwg