发明名称 Vegetation maintenance system
摘要 A vegetation maintenance system includes a soil extraction tool, used to diagnose and treat the soil surrounding an ailing plant, and a plant guard, for protecting the plant from external damage before, during and after treatment. The soil extraction tool consists of an segmented shaft carrying a tubular member having a sharpened, open lower end and a longitudinally extending opening. A plunger is provided for forcibly ejecting soil from the tubular member. The plant guard is a semi-rigid sheet of material having integrally formed fasteners for detachably securing the opposite ends of the sheet in adjustable, overlapping relationship to one another to form a tubular sheath for surrounding a plant.
申请公布号 US5245878(A) 申请公布日期 1993.09.21
申请号 US19910729185 申请日期 1991.07.12
申请人 UNDERWOOD, JOHN P. 发明人 UNDERWOOD, JOHN P.
分类号 A01G13/00;A01G13/02;A01G13/10;E21B25/00 主分类号 A01G13/00
代理机构 代理人
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