Patent ID: 9622425
Date: 2017-04-18
CPC Classifications: A01C,A01G

Claim:
1. A plant growing device comprising: an envelope made from a sheet material, said envelope has substantially planar first and second walls, and a surrounding wall connected between said first and second walls; each of said first, second, and surrounding walls has an outer surface and an inner surface, wherein said inner surfaces of said first, second, and surrounding walls together define an interior space; a plant growing medium is enclosed within said interior space of said envelope, said plant growing medium includes a water-absorptive material selected from the group consisting of a polymeric foam, saw dust, charcoal, soil, sand, wood pulp, polymeric fibrous substances, and natural fiber materials; said first and second walls being made of a vacuum formed film; each of said first and second walls has a plurality of micro-holes extending therethrough and a network of interconnected ribs, said ribs being indented from the outer surface of a respective one of said first and second walls and protruded inwardly from the inner surface of the respective one of said first and second walls to define a plurality of flow guide channels; said second wall further having a plurality of openings that are in spatial communication with said flow guide channels of said second wall and are adapted to permit extension of plants, said plurality of openings being larger than said plurality of micro-holes; wherein said plurality of flow guide channels of said second wall are adapted to dispense water to the plurality of openings and into the plant growing medium; said first wall further having a plurality of drain holes each of which tapers inwardly from said inner surface of said first wall, said drain holes being in spatial communication with said flow guide channels of said first wall and larger than said plurality of micro-holes; and wherein said interconnected ribs of said first and second walls define a plurality of rings each of which surrounds a group of said micro-holes on said first and second walls.