发明名称 |
AN OPEN FRONT REFRIGERATED DISPLAY CASE WITH IMPROVED AMBIENT AIR DEFROST MEANS |
摘要 |
An open front refrigerated display case having an improved ambient air defrost system which includes a housing with a display compartment area for displaying articles therein and an open front area to facilitate placement and removal of the articles, a main refrigeration duct extends throughout the housing having a primary inlet above the open front area and a primary outlet defined below the front area, a primary refrigeration coil is positioned within the primary refrigeration duct for cooling of air passing therethrough and a primary fan device is positioned within the primary refrigeration duct to facilitate drawing of air through the air inlet and expelling of refrigerated air through the air outlet in such a manner as to form an air curtain across the open front area. An ambient air defrost system is included having an ambient air circulation device such as a fan and an ambient air drive means for powering thereof. A one-way ambient air flow restriction device is included preferably having a header member and an air damper means pivotally movable with respect thereto between a refrigeration mode position and a defrosting mode position. The one-way ambient air restriction device allowing full air flow when in the refrigeration mode while allowing restricted air flow while in the defrosting mode,. Preferably the air damper device includes a plurality of air flow apertures defined therein to facilitate restricted flow therethrough in the reverse direction during ambient air defrost. |
申请公布号 |
ZA9008223(B) |
申请公布日期 |
1991.09.25 |
申请号 |
ZA19900008223 |
申请日期 |
1990.10.15 |
申请人 |
HILL REFRIGERATION DIVISION OF THE JEPSON CORPORATION |
发明人 |
BRADLEY J. CAMPBELL;RONALD R. ROSANIO |
分类号 |
A47F3/04;F25D17/06;F25D17/08;F25D21/06;F25D21/12 |
主分类号 |
A47F3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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