Moisture sensitive self-watering planter

Details Moisture sensitive self-watering planter Moisture sensitive self-watering planter

1988-12-15

1991-06-04

DeMille, Danton D.

Plant husbandry

Receptacle for growing medium

Irrigator

47 39, A01G 2700

Patent

active

050202618

ABSTRACT:
A moisture sensitive self-watering planter utilizes a control valve to effect watering of the soil in a liner of the planter upon automatic detection of a predetermined level of dryness of the soil. The planter uses a weight-based system of detecting the amount of moisture in the soil to control the automatic release of a predetermined amount of water into the soil for rehydration thereof. As the weight of the soil increases with the volume of water, the valve is automatically closed to terminate the irrigation process.

REFERENCES:
patent: 1231976 (1917-07-01), Weitzel
patent: 1555675 (1925-09-01), Kruszynski
patent: 3168797 (1965-02-01), Patassy
patent: 3293799 (1966-12-01), Keller
patent: 3906667 (1975-09-01), Williams
patent: 4060934 (1977-12-01), Skaggs
patent: 4092802 (1978-06-01), Oyama
patent: 4557071 (1985-12-01), Fah
patent: 4760666 (1988-08-01), Han

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