Drainage coupling member

Details Drainage coupling member Drainage coupling member

1990-07-19

1992-10-06

Raduazo, Henry E.

Plant husbandry

Water culture, apparatus or method

47 62, 405 45, A01G 3100

Patent

active

051528088

ABSTRACT:
The invention relates to a system, in which water, optionally mixed with nutrients, is supplied to a substrate used for horticulture. Commonly an excess of water is supplied, so that it is necessary to drain the excess. Usually this is achieved by providing drainage hoses, in which an underpressure is maintained. To avoid that the roots of the plants grown in the substrate grow into the hoses and block these, the invention provides coupling members for coupling mineral wood to a drainage hose, when said coupling member is formed by a porous body arranged at least partly in said mineral wool and provided with a cavity connected to said drainage hose. According to a preferred embodiment the porous body of said coupling member is formed by mineral wool compressed such, that the density thereof is greater than the density of the non-compressed mineral wool.

REFERENCES:
patent: 2491124 (1946-12-01), Martin
patent: 3427810 (1969-02-01), Petersen
patent: 3902323 (1975-09-01), Watanabe
patent: 4403446 (1983-09-01), Wolfe
patent: 4630394 (1986-12-01), Sherard
patent: 4740104 (1988-04-01), Stohr

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