Multi-sheet spherical ice making

Patent metadata

Field	Value
Publication number	US-9518770-B2
Application number	US-201213713160-A
Country	US
Kind code	B2
Filing date	Dec 13, 2012
Priority date	Dec 13, 2012
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

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.

First claim

What is claimed is:

1. 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.

2. The ice maker of claim 1 , including:
an ice sheet storage apparatus disposed downstream from the staging area, the ice sheet storage apparatus being L-shaped and configured to receive and store one or more of the plurality of clear ice sheets.

3. The ice maker of claim 1 , wherein:
the mold cavity comprises at least one spherical cavity adapted to form one or more clear ice spheres, and further comprising;
a storage area disposed downstream from the mold apparatus, the storage area adapted to receive and store the one or more clear ice spheres after formation.

4. The ice maker of claim 1 , including:
a heating system adapted to heat the mold apparatus to facilitate the shaping of the unitary clear ice sheet to form the one or more clear ice structures.

5. The ice maker of claim 4 , including:
a water reclaiming system in fluid communication with the cold plate apparatus, and adapted to capture unfrozen water dispelled from the cold plate apparatus during the forming of the clear ice sheets.

Assignees

• Whirlpool Co

Inventors

• Boarman Patrick J
• Culley Brian K
• Hortin Gregory Gene

Classifications

• F25C1/12

  by freezing water on cooled surfaces, e.g. to form slabs · CPC title

• F25C5/14

  Apparatus for shaping or finishing ice pieces, e.g. ice presses · CPC title

• F25C1/18 Primary

  of a particular transparency or translucency, e.g. by injecting air · CPC title