公开(公告)号：US3756038A

公开(公告)日：1973-09-04

申请号：US3756038D

申请日：1972-04-07

Applicant: EMHART CORP

Inventor： MAC MASTER M ,  HENRY J ,  MORRIS H ,  SCHUMACHER N

IPC: A47F3/04 ,  F24F9/00

CPC classification number: A47F3/0447 ,  F24F9/00

Abstract: Refrigerated display equipment is provided with a refrigerated space having an access opening for customers at the front thereof together with separate air duct means through which air is passed from inner and outer return air inlets to inner and outer air discharge means for establishing an air curtain moving across said front access opening and embodying at least two layers of air at least the inner one of which layers is refrigerated air. The equipment is further provided with an access opening for service personnel at the rear of the refrigerated space and the air duct means through which air is passed from the return air inlets to the air discharge means each include a portion which is located adjacent the access opening at the rear of the refrigerated space.

Abstract translation: 冷藏展示设备设有一个冷藏空间，其具有用于其前面的顾客的进入开口，以及单独的空气管道装置，空气从内部和外部回流空气入口通过内部和外部空气排出装置，用于建立气帘移动 穿过所述前通道开口并且至少包括至少两层空气，至少其中的一层是冷藏空气。 设备还设有用于在冷藏空间后部的维修人员的进入开口，空气从返回空气入口通过空气排放装置的空气管道装置均包括位于进入开口附近的部分 在冷藏空间的后面。

公开(公告)号：US3750248A

公开(公告)日：1973-08-07

申请号：US3750248D

申请日：1971-08-12

Applicant: EMHART CORP

Inventor： MORRIS H

IPC: B21D53/08 ,  B23K1/00 ,  B23K1/20 ,  F25B39/02 ,  F28F1/32 ,  F28F9/26 ,  B21D53/00

CPC classification number: F28F9/26 ,  B21D53/085 ,  B23K1/0012 ,  B23K1/20 ,  B23K2201/06 ,  F25B39/02 ,  F28F1/32 ,  Y10T29/49396

Abstract: The method of making a refrigeration evaporator or condenser construction wherein the ends of preferably aluminum tubes which have been extended through heat exchange plates or fins in a refrigeration evaporator or condenser construction are joined with U-bend connectors, said method comprising forming radial internal beads near the ends of the tubes to be connected to provide stops for the ends of the U-bend connectors which are of lesser diameter, flaring the very end portions of the tubes to be connected, laying a thermo-fluid welding material around the connector end portions within the flared ends of the tubes to be connected, and applying heat to flow the said material prior to chilling.

Abstract translation: 制造冷藏蒸发器或冷凝器结构的方法，其中通过冷冻蒸发器或冷凝器结构已经通过热交换板或翅片延伸的优选铝管的端部与U形弯曲连接器连接，所述方法包括形成径向内部珠子 要连接的管的端部为较小直径的U形弯曲连接器的端部提供止动件，使要连接的管的极端部分扩张，将热流体焊接材料围绕连接器端部 在要连接的管的扩口端内，并且在冷却之前施加热量以使所述材料流动。

公开(公告)号：US3827254A

公开(公告)日：1974-08-06

申请号：US35733173

申请日：1973-05-04

Applicant: EMHART CORP

Inventor： MAC MASTER M ,  MORRIS H

IPC: F25D17/08 ,  A47F3/04

CPC classification number: A47F3/0447

Abstract: A refrigerated display case having a display space therein is provided with an access opening in the front of the case and an air curtain composed of a plurality of adjacent layers of air is directed across the access opening with the innermost layer of air adjacent the display space being at a higher temperature than an adjacent layer of air. Some of the air from the air curtain may be directed inwardly for circulation within the display space if desired. Refrigerated means are provided for refrigerating the air forming at least some of the layers of air forming the air curtain and the air forming the innermost layer of the air curtain may flow through a passage which by-passes the refrigeration means. The display space also may be provided with a rear access opening and duct means for circulation of the air forming the air curtain may have portions extending vertically upward at opposite sides of the rear access opening.

Abstract translation: 在其中具有显示空间的冷藏展示柜在壳体的前部设置有进入开口，并且由多个相邻的空气层组成的空气幕被引导穿过进入开口，邻近显示空间的最内层的空气 处于比相邻的空气层更高的温度。 如果需要，来自空气幕的一些空气可以向内指向显示空间内循环。 提供了制冷装置，用于冷却形成形成空气幕的至少一些空气层的空气，形成空气幕的最内层的空气可以流经旁路通过制冷装置的通道。 显示空间还可以设置有后通道开口，用于形成空气幕的空气的循环的管道装置可以具有在后进入开口的相对侧处垂直向上延伸的部分。