US Patent 7637468 Adjustable notebook computer support

An adjustable notebook computer support includes a carrier member holding a notebook computer, a base member having a sliding slot, a first link that has one end pivoted to one end of the carrier member and the other end pivoted to one end of the base member, a second link that has one end pivoted to the other end of the carrier member and the other end coupled to and movable along the sliding slot of the base member, a braking unit movable between an unlocking position for allowing adjustment of the elevation and angle of the first and second links relative to the carrier member and a locking position where the first and second links are locked to the carrier member.