Plant growing container for air-pruning roots
US5557886A · kind A · utility
Inventor
Key dates
| Filing date | Sep 20, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Sep 20, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G9/021
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved container for growing a plant intended to be transplanted is provided. In one embodiment, the sidewall of the container includes an outer sidewall portion and at least one inset sidewall portion. The outer sidewall portion has a plurality of upwardly facing internal ledges positioned in spaced relationship one above the other. Each internal ledge serves to direct laterally growing roots to grow along the internal ledges. The inset sidewall portions of the sidewall are connected to and displaced inwardly from the outer sidewall portion, defining a plurality of root-pruning openings between the inset sidewall portion and the outer sidewall portion. Each root-pruning opening is aligned with an internal ledge so that roots growing along the internal ledges are directed to the root-pruning openings for air-root pruning. In an alternative embodiment, the sidewall of the container comprises a plurality of connected, rectangular sidewall sections disposed one above the other. Each rectangular sidewall section is greater in one dimension than the rectangular sidewall section below it, forming overhangs which are disposed opposite one another. The sidewall further comprises, a pl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.