Ice Cube Tray

1 . An ice cube tray, comprising:

a plurality of generally semi-circular depressions arranged a number of columns and rows, with a plurality of depressions in each column and each row, wherein each depression is surrounded by a rim; and

a shoulder formed in each rim, where the shoulders are constructed and arranged to support part of the sidewall and/or bottom of a depression of another identical tray placed on top of the tray.

2 . The ice cube tray of claim 1 wherein the depressions making up each column are aligned along a columnar axis and the columnar axes are parallel.

3 . The ice cube tray of claim 2 wherein each depression defines a central longitudinal axis that is perpendicular to a columnar axis, where the depressions in adjacent rows are slightly offset from one another in the direction along the columnar axis such that the central longitudinal axes of depressions in adjacent columns are not co-linear but the central longitudinal axes of depressions in the same row in every other column are co-linear.

4 . The ice cube tray of claim 3 wherein each rim has only one shoulder.

5 . The ice cube tray of claim 4 wherein the shoulders in the rims of the depressions in each column are on the same sides of the depressions.

6 . The ice cube tray of claim 5 wherein the shoulders in the rims of the depressions in adjacent column are on opposite sides of the depressions.

7 . The ice cube tray of claim 1 wherein the depressions have two parallel long sidewalls, where the long sidewalls are angled outwardly from the vertical.

8 . The ice cube tray of claim 7 wherein the outward angle is at least about seven degrees.

9 . The ice cube tray of claim 1 wherein the depressions and shoulders are constructed and arranged such that two vertically aligned identical trays in one orientation nest one within the other and in an opposite orientation the trays are stacked such that the bottom tray supports the top tray in a manner in which the depressions of the top tray do not extend below the shoulders of the bottom tray.

10 . An ice cube tray, comprising:

a plurality of generally semi-circular depressions arranged a number of columns and rows, with a plurality of depressions in each column and each row, wherein each depression is surrounded by a rim, wherein the depressions making up each column are aligned along a columnar axis and the columnar axes are parallel, and wherein each depression defines a central longitudinal axis that is perpendicular to a columnar axis, where the depressions in adjacent rows are slightly offset from one another in the direction along the columnar axis such that the central longitudinal axes of depressions in adjacent columns are not co-linear but the central longitudinal axes of depressions in the same row in every other column are co-linear, wherein the depressions have two parallel long sidewalls, where the long sidewalls are angled outwardly from the vertical at an angle of at least about seven degrees;

a shoulder formed in each rim, where the shoulders are constructed and arranged to support part of the sidewall and/or bottom of a depression of another identical tray placed on top of the tray, wherein each rim has only one shoulder, the shoulders in the rims of the depressions in each column are on the same sides of the depressions and the shoulders in the rims of the depressions in adjacent column are on opposite sides of the depressions; and

wherein the depressions and shoulders are constructed and arranged such that two vertically aligned identical trays in one orientation nest one within the other and in an opposite orientation the trays are stacked such that the bottom tray supports the top tray in a manner in which the depressions of the top tray do not extend below the shoulders of the bottom tray.