Latch and lock mechanism

Claim 1

A COMBINED LATCH AND LOCK ADPATED TO BE MOUNTED ON FIRST AND SECOND WALL PORTIONS OF SEPARABLE PARTS OF A CONTAINER ADJACENT A LINE OF SEPARATION THEREBETWEEN FOR SECURING THE PARTS TOGETHER, COMPRISING A KEEPER TO BE AFFIXED TO THE FIRST WALL PORTION, SAID SECOND WALL PORTION HAVING AN OPENING THERETHROUGH BOUNDED BY INTERIOR AND EXTERIOR SURFACES OF SAID SECOND WALL PORTION. A LATCHING UNIT ON SAID SECOND WALL PORTION INCLUDING A CUP MEMBER FORMED OF AN INTEGRAL SHEET METAL STAMPING HAVING MARGINAL FLANGES DISPOSED IN A COMMON PLANE TO BE MOUNTED FLUSH AGAINST SAID EXTERIOR SURFACE AND HAVING SIDE, END AND BASE PANEL PORTIONS COLLECTIVELY DEFINING AN OUTWARDLY OPENING WELL EXTENDING INWARDLY THROUGH SAID OPENING IN NESTED RELATION THEREIN FROM SAID COMMON PLANE AND ELONGATED ALONG A MAJOR AXIS PARALLELING THE PLANE OF SEPARATION, SAID BASE PANEL PORTION GENERALLY PARALLELING SAID COMMON PLANE AND BEING SPACED INWARDLY THEREFROM A DISTANCE CORRESPONDING TO THE THICKNESS OF SAID SECOND WALL PORTION DISPOSING SAID BASE PANEL PORTION SUBSTANTIALLY FLUSH WITH SAID INTERIOR SURFACE, A MOVABLE LATCH MEMBER OF NARROWER LENGTH THAN SAID WELL NESTED IN SAID WELL MEANS SLIDABLY MOUNTING SAID LATCH MEMBER IN SAID WELL FOR RECTILINEAR MOVEMENT ALONG THE MAJOR AXIS OF SAID WELL BETWEEN A LATCHING POSITION AND A RELEASE POSITION DISPLACED LONGITUDINALLY FROM SAID LATCHING POSITION, AND SAID LATCH MEMBER HAVING CATCH MEANS PROJECTING INTO SELECTED ALIGNMENT WITH SAID KEEPER FOR INTERLOCKING ENGAGEMENT THEREWITH WHEN SAID LATCH MEMBER IS IN SAID LATCHING POSITION AND SAID SEPARABLE CONTAINER PARTS ARE IN CLOSED CONDITION AND FOR RELEASING SAID KEEPER THERE FROM WHEN SAID LATCH MEMBER IS MOVED TO SAID RELEASE POSITION.