发明名称 Grit protected pressure regulator for pop-up sprinklers
摘要 A pop-up irrigation sprinkler having a tubular pressure regulator mounted for movement in the pop-up stem and a funnel shaped grit protector shroud mounted within the stem above the pressure regulator to direct deleterious particulate matter downwardly through the pressure regulator.
申请公布号 US4913352(A) 申请公布日期 1990.04.03
申请号 US19890308659 申请日期 1989.02.09
申请人 RAIN BIRD CONSUMER PRODUCTS MFG. CORP. 发明人 WITTY, MICHAEL E.;VERBERA, STEVEN
分类号 B05B1/30;B05B15/10 主分类号 B05B1/30
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