Lock assembly for a refrigerated cabinet or the like

Claim 1

IN A DRAW LOCK FOR A SEALED CABINET DOOR, IN COMBINATION, AN OPEN-ENDED TUBULAR CYLINDRICAL HOUSING PROVIDED AT ITS FRONT END WITH A RADIAL RIM FLANGE AND AT ITS REAR END WITH AN INTURNED BEARING FLANGE PRESENTING A CENTRAL BEARING OPENING SAID RIM FLANGE BEING PROVIDED WITH A SHALLOW ELONGATED RECESS IN THE FORWARD END FACE THEREOF, AN OPERATING HANDLE SHAPED CONFORMABLY TO THE SHAPE OF SAID RECESS, POSITIONED FORWARDLY OF SAID HOUSING AND HAVING A TUBULAR HUB PORTION PROJECTING REARWARDLY THROUGH THE RIM FLANGE AND RECEIVED IN TELESCOPIC FASHION SLIDABLY AND ROTATABLY IN SAID HOUSING, SAID HANDLE AND HUB PORTION BEING MOVABLE BODILY AS A UNIT BETWEEN A RETRACTED REARWARD POSITION WHEREIN THE HANDLE ASSUMES A POSITION NESTED WITHIN SAID RECESS AND AN EXTENDED FORWARD POSITION WHEREIN THE HANDLE IS PROJECTED OUT OF THE RECESS, A DRAW SHAFT PROJECTING THROUGH SAID BEARING FLANGE AND IN AXIAL ALIGNMENT WITH SAID HUB PORTION, THE FORWARD END OF SAID DRAW SHAFT TERMINATING WITHIN THE CONFINES OF SAID HOUSING, A FIRST CLUTCH ELEMENT ON THE FORWARD END OF SAID DRAW SHAFT FORWARDLY OF SAID BEARING OPENING, A SECOND CLUTCH ELEMENT ON THE FORWARD END OF SAID HUB PORTION REARWARDLY OF THE RIM FLANGE, SAID SECOND CLUTCH ELEMENT BEING DISPOSED REARWARDLY OF THE FIRST CLUTCH ELEMENT WHEN THE HANDLE IS IN ITS RETRACTED POSITION AND BEING MOVABLE FORWARDLY INTO COOPERATING ENGAGEMENT WITH THE FIRST CLUTCH ELEMENT AS THE HANDLE IS MOVED FORWARDLY TO ITS EXTENDED POSITION, SAID HOUSING BEING PROVIDED WITH A PAIR OF DIAMETRICALLY OPPOSED HOLES IN THE CYLINDRICAL WALL THEREOF MEDIALLY OF ITS ENDS, A CYLINDRICAL LOCK ASSEMBLY REMOVABLY DISPOSED IN THE FORWARD END OF SAID TUBULAR HUB PORTION AND INCLUDING A RADICALLY SHIFTABLE LOCKING PIN, THERE BEING A HOLE IN THE WALL OF SAID HUB PORTION THROUGH WHICH THE LOCKING PIN NORMALLY PROJECTS AND IN WHICH IT IS SLIDABLE, SAID LATTER HOLE BEING MOVABLE INTO TRANSVERSE REGISTER WITH THE HOLES IN THE WALL OF SAID HOUSING WHEN THE HANDLE IS IN ITS RETRACTED POSITION TO THE END THAT SAID LOCKING PIN MAY BE PROJECTED SELECTIVELY INTO SAID LATTER HOLES.