CODED BLOCKING DEVICE Russian patent published in 1999 - IPC

FIELD: locking and blocking equipment. SUBSTANCE: coded blocking device has body, removable span-piece with entering head-piece, body cover which closes blind holes. Located in blind holes are coding detents. Cover with ribs which are seated in body slots is blocked on body by span-piece. Entering head-piece of span-piece is positioned in body and in cover hole. Radial stops on head-piece of span-piece are of different lateral profiles. Each radial stop interacts with coded detents which are of corresponding lateral profiles. Aforesaid embodiment of coded blocking device allows for unlimited changing of secrecy code. EFFECT: higher efficiency. 4 dwg