发明名称 Fan device for rotary mowers
摘要 A suction and blower fan device of simple construction is disclosed for use with a rotary mower blade mounted upon an upright shaft within a mower housing. The fan device operates to improve the cutting efficiency of the mower blade and functions to produce scouring of the mower housing to a degree, reducing or preventing the objectionable accumulation of clippings on the inner housing surfaces.
申请公布号 US4213289(A) 申请公布日期 1980.07.22
申请号 US19790040975 申请日期 1979.05.21
申请人 KAMPPINEN, HOLGER 发明人 KAMPPINEN, HOLGER
分类号 A01D34/00;(IPC1-7):A01D55/18 主分类号 A01D34/00
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