Plant husbandry – Receptacle for growing medium – Monolythic
Patent
1996-02-06
1999-04-06
Carone, Michael J.
Plant husbandry
Receptacle for growing medium
Monolythic
A01G 902
Patent
active
058903186
ABSTRACT:
An improved plant tray formed of sturdy, injection-molded plastic. The plant tray is a precision-molded grid-like structure, having a series of individual plant cells arranged in side-by-side relationship with each other and having open tops and bottoms. A solid plastic wall separates each plant cell from an adjacent plant cell. Each cell wall has a varying thickness, tapering from a relatively thick top edge to a relatively thin bottom edge, to impart a progressively increasing cross-sectional area to the individual plant cells, from top to bottom. In each cell, there are reinforcing gussets at the corner junctures of adjacent cell walls. A perforated bottom screen retains young plants in the cells and is reinforced by relatively thick plastic runners that form a grid on its lower surface. In the one embodiment, the plant tray includes 432 individual plant cells so that the plant tray is compatible with conventional plant flats having 24, 36, 48, or 72 individual plant receiving cavities.
REFERENCES:
patent: 3667159 (1972-06-01), Todd
patent: 4144672 (1979-03-01), Gradwell et al.
patent: 4389814 (1983-06-01), Andreason et al.
Carone Michael J.
Downs Joanne C.
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