SELF-LOCKING SEAL Russian patent published in 1997 - IPC

FIELD: rail and road transport; locking devices to prevent stealing from rail cars and road vans. SUBSTANCE: self- locking seal has body with end face covers provided with central axial holes and inner conical space. Conical cage with central axial hole is placed in conical space. Slots are made over cage generating lines in which spring loaded stops for balls are installed. Balls engage with cable. Bushing for engagement with body is secured on one end of cable. EFFECT: improved antitheft protection. 2 dwg