发明名称 Integral pivot damper blade
摘要 A damper blade is constructed with a laterally extending, rounded rib and with integral journals on opposite ends of the rib that form bearing surfaces when the blade is journaled in openings in the frame of a damper assembly. The construction provides for convenient manufacturing from a blank without the addition of hardware for mounting the blade in a damper assembly.
申请公布号 US5238453(A) 申请公布日期 1993.08.24
申请号 US19920819622 申请日期 1992.01.09
申请人 GREENHECK FAN CORPORATION 发明人 HEIL, EUGENE J.
分类号 F24F13/15 主分类号 F24F13/15
代理机构 代理人
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