Multi-sheet spherical ice making
AssigneeWhirlpool Corporation
InventorsPatrick J. Boarman, Brian K. Culley, Gregory Gene Hortin
Life of this patent
Estimating the term…
Abstract
A unitary clear ice sheet is formed from a plurality of individual clear ice sheets which are fused together to give the unitary ice sheet a predetermined thickness. The fused unitary ice sheet is a clear unitary ice sheet due to the formation of the plurality of individual clear ice sheets by running water over a cold plate apparatus or evaporator mechanism to form the ice sheets in a gradual layer-by-layer process. The fused unitary clear ice sheet is used to mold or shape clear ice structure therefrom, such as clear ice spheres in a mold apparatus.
Claims5
An ice maker comprising:
- a cold plate apparatus adapted to freeze a portion of running water from a water supply into layers to form a plurality of clear ice sheets;
- the cold plate apparatus including a flat cold plate base with upwardly extending side walls, and a plurality of upwardly extending dividers extending upwardly from the cold plate base, the dividers extending parallel to and spaced between the upwardly extending side walls;
- a cooling source coupled to the base, wherein a single ice sheet is formed on an opposing surface of the base from the cooling source, the ice sheet having a width defined by a distance between two adjacent dividers, a divider and one of the side walls, or the side walls;
- a staging area disposed downstream from the cold plate apparatus, the staging area adapted to receive and fuse the plurality of clear ice sheets to form a unitary clear ice sheet having a first surface and a second surface;
- a mold apparatus disposed within the staging area, the mold apparatus including a first mold assembly having a first mold form and a second mold assembly having a second mold form, wherein the first and second mold assemblies are operable between an open position and a closed position, wherein the first mold assembly engages the first surface of the unitary clear ice sheet and the second mold assembly engages the second surface of the unitary clear ice sheet as the first and second mold assemblies move from the open position to the closed position;
- and
- a mold cavity defined by the first and second mold forms of the first and second mold assemblies in the closed position, wherein the mold apparatus is adapted to shape the unitary clear ice sheet to form one or more clear ice structures in the mold cavity by driving the first and second mold assemblies to the closed position about the unitary clear ice sheet.
Dependencies are inferred from the claim text.