Patent ID: 8485008

Claim:
Apparatus comprising: a key fob; a removable key having a key-shaft portion, the key-shaft portion having longitudinally arranged key teeth formed into a key-teeth surface of the key-shaft portion, and the key-shaft portion having at least one key groove formed into a key-groove surface of the key-shaft portion, the at least one key groove being aligned parallel to a longitudinal axis of the key-shaft portion, and the key-groove surface being different from, adjacent to, and perpendicular to the key-teeth surface; and a leaf-style spring positioned within the key fob so that, while the key-shaft portion of the removable key is longitudinally inserted into the key fob, the key-teeth slide along a middle portion of the spring and at least partially collapse the spring, thereby reducing movement of the key-shaft portion of the removable key within the key fob and thereby reducing noise associated with movement of the key-shaft portion of the removable key within the key fob.