Patent ID: 7095159

Claim:
A device, comprising: a displaceable element; a driver comprising a plurality of actuatable drive elements each having a respective engagement area operable to move from a respective start position to a respective end position and back to the start position, wherein during movement from the start position to the end position the engagement area is engaged with the displaceable element and applies a mechanical force urging the displaceable element to move, and during movement from the end position to the start position the engagement area is disengaged from the displaceable element, wherein the driver comprises a base comprising a plurality of recesses, each of the recesses having a slotted opening that defines for a respective one of the drive elements extending therethrough a range of lateral movement corresponding to lateral movement of the respective drive element between the start position and the end position; and a controller configured to choreograph the operation of the actuatable drive elements in moving the displaceable element.