Root-control planter that is integral, lightweight, thin-walled,

Details Root-control planter that is integral, lightweight, thin-walled, Root-control planter that is integral, lightweight, thin-walled,

1993-09-09

1994-12-13

Raduazo, Henry E.

Plant husbandry

Receptacle for growing medium

For transplanting

47 33, A01G 108

Patent

active

053719670

ABSTRACT:
The root-control planter has a thin-walled frustoconical body that is open at the top and bottom, and that has vertically-spaced ledges that lie in planes perpendicular to the axis of the frustum. Internal ribs or ridges are provided integrally with the body, and have vertically-spaced hook or notch portions that hook not only over the top of another identical planter but also over the ledges thereof. At the bottom of the frustum is a radially-outwardly extending flange. At circumferentially spaced points about the bottom region of the body, and adjacent the flange, are relatively small openings through which certain tree roots will grow and lock the planter in the ground despite the upward forces exerted by other tree roots that pass beneath the flange. At the top of the planter body is a continuous rim that is bent-over in an inward direction, hooking or bending over the upper ends of the ribs.

REFERENCES:
patent: 388154 (1888-08-01), Stanley
patent: 4019279 (1977-04-01), Moorman et al.
patent: 4179846 (1979-12-01), Carlisle
patent: 4604825 (1986-08-01), Mainprice
patent: 4644685 (1987-02-01), Tisbo
patent: 4665645 (1987-05-01), Schau, III et al.
patent: 4955156 (1990-09-01), Williams
patent: 5044120 (1991-09-01), Couch
patent: 5070642 (1991-12-01), Albrecht
patent: 5121569 (1992-06-01), Thomas

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