Support system for planting trays
US4434576A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | May 10, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A support rail for use in supporting a planting tray during its initial growing period in a greenhouse. The support rail is especially suited for use with trays having a high-density matrix of small-sized soil plugs, and comprises a horizontally extending, vertically disposed web member and a pair of support members projecting from opposite sides of the web member at its lower extremity. The support members are angled downward from the horizontal so that a tray resting on support member will be supported along the tray's lower edges and not along the bottom surface. The rails are arranged in a uniformly spaced, parallel configuration, which provides stable support for a plurality of trays without providing a preferential growing environment for those soil plugs closest to the edges of the trays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.