Refrigerator cabinet

Claim 2

IN THE METHOD OF INSULATING THE HOLLOW WALLS OF A REFRIGERATOR CABINET HAVING OUTER SHELL AND ON INNER SHELL SPACED THEREFROM WHICH DEFINES A SPACE TO BE COOLED AND HAS A COOLING COIL OF REFRIGERATION APPARATUS IN THERMAL CONTACT WITH ITS OUTER SURFACE, THE INNER SHELL AND COOLING COIL BEING REMOVABLE AS A UNIT FROM WITHIN THE OUTER SHELL, THE IMPROVEMENT WHICH COMPRISES PROVIDING ABOUT A PART HAVING THE GENERAL CONFIGURATION OF THE OUTER SURFACE OF THE INNER SHELL AND COOLING COIL IN THERMAL CONTACT THEREWITH A COVER WHICH IS REMOVABLE THEREFROM AND HAS AN OUTER LAYER OF ROCK WOOL, AND, WHILE SUCH PART OCCUPIES A POSITION WITHIN THE OUTER SHELL NORMALLY OCCUPIED BY THE INNER SHELL, FOAMING A FOAMABLE POLYURETHANE PLASTIC IN SITU IN THE SPACES IN THE HOLLOW WALLS DEFINED BY THE OUTER WOOL LAYER OF THE COVER AND THE OUTER SHELL TO FORM A BODY OF FOAMED POLYURETHANE PLASTIC INSULATION WHICH ADHERES TO THE INNER SURFACE OF THE OUTER SHELL AND WHICH IS IN INTIMATE PLYSICAL CONTACT WITH THE OUTER ROCK WOOL LAYER OF THE COVER AND IS SEPARABLE THEREFROM, REMOVING FROM THE OUTER SHELL AND THE BODY OF FOAMED POLYURETHANE PLASTIC INSULATION ADHERING TO THE INNER SURFACE THEREOF THE PART AND THE COVER AND THE OUTER SURFACE THEREOF THE PART AND THE COVER AND THE OUTER WOOL LAYER THEREOF, PROVIDING ABOUT THE INNER SHELL AND COOLING COIL IN CONTACT THEREWITH A LAYER OF INSULATION WHICH IF REMOVABLE THEREFROM, AND REMOVABLY POSITIONING WITHIN THE OUTER SHELL THE INNER SHELL ABOUT WHICH THE LAYER OF INSULATION IS DISPOSED, THE LAYER OF INSULATION BEING SUFFICIENTLY THICK SO THAT IT WILL BE IN INTIMATE PHYSICAL CONTACT WITH THE INNER SURFACE OF THE BODY OF FOAMED POLYURETHANE PLASTIC INSULATION WITHIN THE OUTER SHELL.