Plant husbandry – Tree trunk guard or protector
Patent
1975-10-23
1976-10-26
Burr, Edgar S.
Plant husbandry
Tree trunk guard or protector
A01G 900
Patent
active
039875857
ABSTRACT:
A modular device for cultivating plants in channels containing isolated soil systems comprises longitudinally-folded sheets of material forming one or more center support members and a pair of edge support members. Each of the center supports has a series of alternately-inclined segments connected by upper and lower reverse bends parallel to its edges, while each of the edge supports has the form of a triangular prism or truss with one edge portion extending exteriorly of the prism. The edge supports are spaced apart on a surface in parallel relation, with their extended edges confronting, and the center support rests between them and on top of their extended edges. This forms a soil channel which may be extended longitudinally to any desired length by adding further similar structures end-to-end, and which may be subdivided laterally either by extending the inclined segments of the center support above the soil surface, or by adding partition panels. The prismatic form of the edge supports effectively resists lateral pressure of the soil to maintain structural stability.
REFERENCES:
patent: 1067556 (1913-07-01), Schmidt et al.
patent: 1172787 (1916-02-01), Gray
patent: 2039442 (1936-05-01), Mulford
patent: 2318711 (1943-05-01), Phelan
patent: 2867946 (1959-01-01), Kobs
patent: 3396488 (1968-08-01), Ries
patent: 3788002 (1974-01-01), Suchka
patent: 3849932 (1974-11-01), Adams
Burr Edgar S.
Ericson William L.
Feyrer James R.
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