Patent ID: 11905736
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 2:
3. The security device according to claim 2
wherein the key structure is a mechanical structure;
wherein the key structure controls the operation of the lock control circuit;
wherein the key structure inserts into the locking structure;
wherein the key structure is a rotating structure;
wherein by rotating structure is meant that the cant formed between any two blades selected from the multi-blade structure of the key structure is adjustable;
wherein by cant is meant the arc formed between the major axis of any blade initially selected from the multi-blade structure of the key structure and the major axis of any blade subsequently selected from the multi-blade structure of the key structure;
wherein the locking structure is constructed such that the rotation of the multi-blade structure occurs while the key structure is inserted in the locking structure.