发明名称 Tree surround
摘要 A tree surround which is provided to confine shredded or bark material at the base of a tree for the purpose of retaining moisture and likewise prevent the growth of weeds thereby maintaining neat appearance of the tree area, the surround being made from tire carcasses, specifically the sidewalls thereof which would normally be a problem to dispose of and costly to otherwise destroy, the shape of the sidewall and the contact of the severed outer periphery with the ground making possible use of power equipment to trim weeds which may grow near such periphery.
申请公布号 US4932157(A) 申请公布日期 1990.06.12
申请号 US19890359584 申请日期 1989.06.01
申请人 SHIMP, NATHAN B. 发明人 SHIMP, NATHAN B.
分类号 A01G13/00;A01G13/02;E01F15/04 主分类号 A01G13/00
代理机构 代理人
主权项
地址