A slide fastener lock assembly comprises a slider pull tab having an engaging pin and a lock having a locking lug releasably engageable therewith. The lock has a latch movable toward and away from the locking lug to lock and unlock the pull tab. A lock tumbler is rotatable by a key to releasably lock...http://www.google.ca/patents/US5081855?utm_source=gb-gplus-sharePatent US5081855 - Slide fastener lock assembly