Abstract: A cabinet structure having upstanding sidewalls defining vertical corners. The sidewalls include an inner liner, an outer shell, and foamed-in-place insulation between the liner and shell. A first breaker collar extends between the shell and liner across the insulation space. A second breaker collar extends between the shell and liner across the insulation space, with the breaker collars having spaced end portions at a corner of the cabinet. A collar corner element is installed across the space between the breaker collar ends at the corner and includes temporary locking structure for holding the corner element in place during the forming of the foamed-in-place insulation. The corner element further includes a locking wall extending into the insulation space so as to be embedded in the foamed-in-place insulation upon completion of the foaming operation.

Abstract: An enclosure structure including a cabinet having an insulative wall defining an internal space selectively closed by a closure member hingedly mounted to the cabinet. The end of the insulating space in the wall is closed by a cooperating breaker collar, inner liner, and outer shell flange structure arranged to be free of protuberant portions for nonbinding, wiping movement of the closure gasket thereagainst in the selective positioning of the closure member between open and closed positions. In the illustrated embodiment, the shell flange includes a turned distal portion projecting downward with respect to the insulating space and the breaker collar includes a distal connecting portion embracing the turned distal portion of the flange to provide a positive connection of the breaker collar to the shell.