Patent ID: 7570978

Claim:
A mobile communication device, comprising: a first body part; a second body part; a slider mechanism configured to slidably attach said second body part to said first body part, said second body part movable at least from a first position to a second position with respect to said first body part by means of said slider mechanism; and a mechanical lock, including at least one lever acting as a stop, and configured to lock said second body part in said first position by positioning said lever perpendicular to said slider mechanism to prevent said second body part from moving along said slider mechanism, said mechanical lock comprising a user-operable mechanical switch coupled to said lever and positioned to cause said lever to either block or liberate said slider mechanism by moving said lever, while remaining perpendicular to said slider mechanism, in a perpendicular direction away from said slider mechanism, when said second body part and said user-operable mechanical switch are moved in said longitudinal direction.