Lock assembly for a refrigerated cabinet or the like

Claim 1

IN A DRAW LOCK FOR A SEALED CABINET DOOR, IN COMBINATION, A HOUSING STRUCTURE ADAPTED TO BE INSTALLED IN A DOOR LOCK OPENING AND PRESENTING SPACED FRONT AND REAR INTERNAL BEARINGS RESPECTIVELY, SAID HOUSING STRUCTURE PRESENTING A FRONT FACE PROVIDED WITH A SHALLOW ELONGATED RECESS, AN OPERATING HANDLE POSITIONED FORWARDLY OF THE HOUSING STRUCTURE AND FRONT BEARING AND HAVING A HUB PORTION SLIDABLE AXIALLY AND ROTABLE IN THE LATTER A DRAW SCREW PROJECTING THROUGH THE REAR BEARING IN AXIAL ALIGNMENT WITH SAID HUB PORTION, MEANS PREVENTING ENDWISE AXIAL SHIFTING OF THE DRAW SCREW, SAID DRAW SCREW BEING PROVIDED WITH A THREADED PORTION ADJACENT THE REAR END THEREOF DESIGNED FOR THREADED COOPERATION WITH A SUBSTANTIALLY FIXED REACTION NUT ON A CABINET TO WHICH THE DOOR IS APPLIED, SAID OPERATING HANDLE BEING SHAPED CONFORMABLY TO THE SHAPE OF THE RECESS IN THE FRONT FACE OF THE HOUSING STRUCTURE AND BEING MOVABLE WITH THE HUB PORTION BODILY AS A UNIT BETWEEN A RETRACTED POSITION WHEREIN THE HANDLE IS IN AN ANGULAR POSITION OF REGISTER WITH AND IS WHOLLY CONTAINED WITHIN SAID RECESS, AND AN EXTENDED POSITION WHEREIN THE HANDLE IS PROJECTED FORWARDLY OF THE HOUSING STRUCTURE AND OUT OF THE RECESS, A CONNECTING SLEEVE THE OPPOSITE ENDS OF WHICH ARE OPEN AND INTO WHICH ENDS THE HUB PORTION AND DRAW SCREW PROJECT RESPECTIVELY, MEANS ESTABLISHING A ROTARY DRIVING CONNECTION BETWEEN THE SLEEVE AND THE HUB PORTION, MEANS ESTABLISHING A ROTARY DRIVING CONNECTION BETWEEN THE SLEEVE AND THE DRAW SCREW, ONE OF SAID TWO LAST MENTIONED MEANS PROVIDING FOR A LIMITED DEGREE OF CIRCUMFERENTIAL LOST-MOTION BETWEEN THE SLEEVE AND THE MEMBER TO WHICH THE SLEEVE IS DRIVINGLY CONNECTED BY SAID ONE MEANS, AND ONE OF SAID TWO LAST MENTIONED MEANS PROVIDING FOR AXIAL SHIFTING BETWEEN THE SLEEVE AND THE MEMBER TO WHICH THE SLEEVE IS DRIVINGLY CONNECTED BY SAID LATTER ONE MEANS