# US 2022/0034569 A1 · Evaporator assembly for a vertical flow type ice making machine

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- Number: US 2022/0034569 A1
- Document ID: US20220034569A1
- Status: Published application
- Kind: A1
- Application number: 17/263,105
- Filed: 2020-09-24
- Published: 2022-02-03
- Earliest claimed: 2019-09-24
- Inventors: Ram Prakash SHARMA; Vinay SHARMA
- Web page: https://patentgrep.com/patent/US20220034569A1

## CPC

- F25C 1/12: by freezing water on cooled surfaces, e.g. to form slabs
- F25C 1/246: Moulds with separate grid structure
- F25C: PRODUCING, WORKING OR HANDLING ICE

## Abstract

An evaporator assembly for an ice machine is disclosed. The assembly comprises of a frame, a plurality of first cooling surfaces that are spaced at a distance and extend in a first direction within the frame. The assembly also includes a plurality of second cooling surfaces which extend in a second direction perpendicular to the first direction within the frame. An intersection of the plurality of first and second cooling surfaces defines a plurality of ice forming blocks. Further, at least one conductive wall having a first surface and a second surface is provided. The first surface of the conductive wall is configured to accommodate the plurality of ice forming blocks and the second surface of the conductive wall is configured to come in contact with refrigerant or defrost fluid.

## Claims

### Claim at position 1

1-16. (canceled)

### Claim 17

An evaporator assembly for a vertical flow type ice making machine, the evaporator assembly comprising:
a frame;
a plurality of vertical cooling surfaces, each spaced at a distance and extending in a first direction within the frame;
a plurality of horizontal cooling surfaces, each spaced at a distance and extending in a second direction perpendicular to the first direction within the frame,
wherein, an intersection of the plurality of vertical and horizontal cooling surfaces defines a plurality of ice forming blocks;
at least one conductive wall having a first surface and a second surface,
characterized in that, the at least one conductive wall and the horizontal cooling surfaces at a top end of the at least one conductive wall are formed from a single metallic sheet,
wherein, the first surface of the conductive wall is configured to accommodate the plurality of ice forming blocks and the second surface of the conductive wall is configured to come in contact with at least one of refrigerant and defrost fluid, and;
the second surface of each of the at least one conductive wall is configured to define a plurality of channels,
wherein each of the plurality of channels are configured vertically one above the other.

### Claim 18 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein each of the plurality of channels is formed by configuring two of the at least one conductive walls, such that second surface of the at least one conductive walls face each other.

### Claim 19 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein the frame is made of a polymeric material.

### Claim 20 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein the first directions is a vertical direction, and the second directions is a horizontal direction.

### Claim 21 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein the horizontal cooling surfaces are defined with a plurality of slots for accommodating the plurality of vertical cooling surfaces.

### Claim 22 (depends on 18)

The evaporator assembly as claimed in claim 18, wherein the plurality of channels is defined by a plurality of rectangular tubes positioned one above the other.

### Claim 23 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein a top end of each of the at least one conductive wall is fixedly connected to the horizontal cooling surface.

### Claim 24 (depends on 17)

The evaporator assembly as claimed in claim 17, comprises at least a fluid tank and one conductive strip extending from a plurality of channels to the fluid tank provided below the evaporator assembly.

### Claim 25 (depends on 17)

The evaporator assembly as claimed in claim 17 comprising at least one pivotable flap connected to the frame.

### Claim 26 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein the frame houses at least one water flow line and at least one defrost fluid spray line.

### Claim 27 (depends on 17)

The evaporator assembly as claimed in claim 17, comprising at least one side plate arranged parallel to the plurality of vertical cooling surfaces and is configured to enclose the plurality of ice forming blocks.

### Claim 28 (depends on 17)

The evaporator assembly as claimed in claim 17, wherein the conductive walls are of a curled profile.

### Claim 29 (depends on 17)

A vertical flow type ice making machine as claimed in claim 17, the machine comprising:
one or more evaporator assemblies, each of the one or more evaporator assemblies comprising:
a frame;
a plurality of vertical cooling surfaces, each spaced at a distance and extending in a first direction within the frame;
a plurality of horizontal cooling surfaces, each spaced at a distance and extending in a second direction perpendicular to the first direction within the frame;
wherein, an intersection of the plurality of first and second cooling surfaces defines a plurality of ice forming blocks;
at least fluid flow line positioned upstream side of each of the one or more evaporator assemblies for supplying liquid onto the plurality of ice forming blocks;
at least one conductive wall having a first surface and a second surface,
wherein the at least one conductive wall and the horizontal cooling surfaces at a top end of the at least one conductive wall are formed from a single metallic sheet;
the first surface of the conductive wall is configured to accommodate the plurality of ice forming blocks and the second surface of the conductive wall is configured to come in contact with at least one of refrigerant and defrost fluid;
the second surface of each of the at least one conductive wall is configured to define a plurality of channels;
wherein, each of the plurality of channels are configured vertically one above the other; and
at least one defrost fluid tube positioned in upstream side of the plurality of conductive walls for selectively supplying the defrost fluid onto the plurality of conductive walls.
