a helical wire spring the coils of the spring engage a follower that moves along the axis of the spring with rotation of the motor to provide linear motion this actuator may be used as a linear drive in an appliance lock application_number US 55329706 A description referring now to fig1 an appliance 10 such as a washing machine may have a housing 12 having an opening over which a hinged door 14 may close for example to cover a wash basket 16 the door 14 may be locked when closed to prevent injury to a user during the spin cycle of the washing machine for this purpose a front edge of the door 14 may include a strike aperture 18 which may receive a bolt 20 when the door 14 is in the closed position the bolt 20 may extend from a latch mechanism 22 positioned within the housing 12 under the control of an electrical signal as used herein the term u201c bolt u201d may embrace any similar locking element such as a hook pin latch bar shaft or the like referring now to fig2 and 3 the latch mechanism 22 may be positioned within the housing 12 behind an aperture 21 through which the bolt 20 not shown in fig3 may extend the latch mechanism 22 may be held in position by means of a bezel 24 having a central aperture 26 aligning with aperture 21 and a pair of rearwardly extending posts 28 the posts 28 that may pass through corresponding apertures not shown in the housing 12 to be received by sockets 30 molded in the side of the latch housing 23 the rearwardly extending posts 28 include upwardly extending teeth 34 that may engage a lip 36 of the socket 30 holding the.