发明名称 DEVICE TO REMOVE SNOW, FRAZIL AND ICICLES FROM BUILDING ROOFS
摘要 FIELD: construction.SUBSTANCE: proposed device comprises vent tubes to discharge dirty air from back rooms and combustion products from heaters extending through roofs and air ducts. Attic floor is provided with hollow cylindrical case to house coaxial blower and ejector connected therewith in series. Note here that air ducts communicate said ejector with vent tubes. Besides, said case has inlet and outlet nozzles.EFFECT: higher operating reliability.3 dwg
申请公布号 RU2570582(C2) 申请公布日期 2015.12.10
申请号 RU20140116928 申请日期 2014.04.25
申请人 BELJAEV VIKTOR BORISOVICH 发明人 BELJAEV VIKTOR BORISOVICH
分类号 E04D13/076 主分类号 E04D13/076
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