Lock

A lock comprising:

• a housing having a front section comprising a plurality of apertures therethrough;
• a plurality of buttons disposed through the apertures in the front section of the housing, each button having an axis along which each of the buttons may be axially pressed between an un-pressed position and a pressed position, wherein each of the buttons can be pressed two or more times;
• a biasing member associated with each of the plurality of buttons, configured to bias each button towards the un-pressed position;
• a plurality of spools, each spool comprising a plurality of circumferential grooves, each circumferential groove having a notch extending over a portion of the circumferential groove, wherein each notch on a given spool is angularly displaced relative to each of the other notches on that spool, the circumferential grooves being parallel and separated spaced apart at a groove spacing from each other;
• a plurality of legs, each leg in communication with one of the buttons, wherein each leg is arranged to contact one of the circumferential grooves of one of the spools;
• a locking plate disposed within the housing, the locking plate having a plurality of apertures, each aperture arranged to receive one of the spools therethrough;
• an actuator associated with the locking plate and a latch, wherein the actuator is configured to move the locking plate;
• wherein pressing one of the buttons causes the leg in communication with the button to translate the corresponding spool by one groove spacing, with releasing the button causing the leg to engage an adjacent groove;
• and
• wherein the translation of each spool causes a differently rotationally oriented notch to be adjacent to the locking plate, with the locking plate only being able to move into an unlocked position, when driven by the actuator, thereby disengaging the latch and unlocking the lock, if all of the notches which are adjacent to the locking plate are in a unlocked rotational orientation.