Deflector for display cases

• US 10,383,459 B2
• Filed: 05/28/2017
• Issued: 08/20/2019
• Est. Priority Date: 04/08/2013
• Status: Active Grant

• Current Assignee: Kysor Warren Epta Us Corporation (EPTA SPA)
• Original Assignee: Kysor Warren Epta Us Corporation (EPTA SPA)
• Inventors: Sahu, Kapil Das, Schuetter, Michael J., Shinde, Darshan U.
• Primary Examiner(s): McAllister, Steven B
• Assistant Examiner(s): Probst, Samantha A
• Application Number:
  US15/607,497
• Publication Number:
  US 20170258247A1
• Time in Patent Office: 814 Days
• Field of Search: 454173, 454284
• CPC Class Codes: A47F 3/0447 with air curtains
• CPC Class Codes: A47F 3/0469 Details, e.g. night covers

Abstract

Display cases may include deflectors and fans. The deflectors may alter air currents generated by fans to provide an air current to display portions of the display case. In some implementations, the altered air current may have a first portion with a velocity that is greater than a velocity of a second portion, where the first portion is closer to a display portion of the display case.

Claims

1. A refrigerated display case comprising:

a first display case wall;

a second display case wall separated from the first display case wall and having an open display portion between the first display case wall and the second display case wall, and wherein an open area is adjacent to the display portion;

a fan for generating a gas current, wherein the fan is associated with the first display case wall;

a deflector coupled to a portion of the first display case wall;

a duct positioned and configured to receive the gas current from the fan and deliver the gas current to the deflector; and

wherein the deflector comprises;

a first surface,

a second surface opposed to the first surface,

a first member having a first end and a second end, and

a second member having a first end and second end, wherein the first end of the second member is coupled to the second end of the first member, wherein the first surface proximate the second member is disposed approximately 149 degrees to approximately 153 degrees from the first surface proximate the first member, and

whereby the deflector produces a first portion of the gas current having a first velocity and a second portion of the gas current having a second velocity that is slower than the first velocity and wherein the first portion of the gas current is closer to the display portion than the second portion of the gas current.

2. The display case of claim 1 comprising a flow straightener coupled to the deflector.

3. The display case of claim 2 wherein the second surface proximate the second member is disposed approximately 9 degrees to approximately 13 degrees from a surface of the flow straightener.

4. The display case of claim 1 wherein a velocity of a third portion of the gas current is greater than the velocity of the second portion of the gas current and less than the velocity of the first portion of the gas current, wherein the third portion of the gas current is disposed between the first portion and the second portion of the gas current.

5. The display case of claim 1 wherein the first member comprises a first dimension approximately 1.9 inches to approximately 2 inches in length, and wherein the second member comprises a second dimension approximately 2.5 inches to approximately 2.9 inches in length.

6. A refrigerated display case comprising:

a display case housing formed with an display portion and having an open area adjacent the display portion;

a fan for generating an air current;

a deflector coupled to a portion of the display case housing, the deflector having an first outward facing surface and a second inward facing surface;

a duct coupled to the fan for receiving the air current and delivering the air current to the second surface of the deflector;

wherein the deflector further comprises;

a first member,

a second member coupled to the first member at an angle θ

formed between the first member and the second member measured on a first side,

wherein the angle θ

is between about 149 degrees to about 153 degrees, whereby the air current from the fan upon impacting the deflector produces at least a first portion of the air current and a second portion of the air current, wherein a velocity of the first portion of the air current is greater than a velocity of the second portion of the air current, and wherein the first portion of the air current is closer to the display portion than the second portion of the air current.

7. The refrigerated display case of claim 6, wherein a velocity of a third portion of the air current is less than the first portion of the air current and faster than the second portion of the air current, and wherein the third portion is positioned between the first portion of the air current and the second portion of the air current.