发明名称 Reinforced plastic panel for solar collectors - with parallel sheets sepd. by honeycomb spacers
摘要 <p>New reinforced plastic panels for use as cover plates, e.g. of solar heat collectors, combine a high structural rigidity with a low weight, and low mfg costs. The panel consists of two thin parallel plastic sheets which are sepd by spacers, pref. of a honeycomb extrusion or of parallel sheets separated by alternately inclined webs. The spacers have a pref. width of 1-2 cm, a height of 1-3 cm, and are arranged parallel to each other at a spacing of 10-100 cm.</p>
申请公布号 DE2719409(A1) 申请公布日期 1978.11.02
申请号 DE19772719409 申请日期 1977.04.30
申请人 GRAEFF,RODERICH WILHELM,DR.-ING. 发明人 WILHELM,DR.-ING. GRAEFF,RODERICH
分类号 E04C2/36;F24J2/50;(IPC1-7):04C2/38;04C2/54;24J3/02 主分类号 E04C2/36
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