Patent ID: 7467756

Claim:
A gyratory cone crusher comprising: cooperative crushing members adapted to crush rock material therebetween; a liner secured to and generally forming a facing surface of at least one of the crushing members and against which the rock material is crushed, said liner having an opposing inner surface in fixed relation to said at least one of the crushing members to form engaging interfacings intended to remain in fixed relation throughout the operation of the crushing member and is, however, subjected to a force during crushing operation that urges undesired and harmful liner movement relative to the said at least one crushing member; a detector embedded in at least one of the liner and said at least one crushing member at a position of said engaging interfacings, which detector is configured to detect an occurrence of any such relative movement between the crushing member and the liner; and said detector adapted to generate a signal, and said detector responsive to any such occurrence of movement for generating the signal to indicate said movement and a need to repair the securerment of the liner to the said at least one crushing member.