发明名称 Root control planter
摘要 A tree planter which prevents the roots of a tree from cracking a nearby sidewalk, including a planting container which is buried in the ground with a young tree therein, the container having sidewalls of slick and impenetrable material such as plastic, and with the sidewalls sloping outwardly, so that the open bottom of the container is larger than the top, to help deflect roots downwardly so that when they begin growing outwardly they grow at a level far below the sidewalk.
申请公布号 US4019279(A) 申请公布日期 1977.04.26
申请号 US19750585048 申请日期 1975.06.09
申请人 MOORMAN, MAURICE D.;ALBRECHT, LEONARD N. 发明人 MOORMAN, MAURICE D.;ALBRECHT, LEONARD N.
分类号 A01G9/00;E01C9/00;(IPC1-7):A01G17/00;A01G9/02;A01G11/00 主分类号 A01G9/00
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