Moisture indicating plant receptacle

Details Moisture indicating plant receptacle Moisture indicating plant receptacle

1974-03-29

1976-03-16

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

47 13, 200 6105, 239 63, 307118, 340235, G01R 2702

Patent

active

039449165

ABSTRACT:
Apparatus for determining in-situ the moisture content of potting soil in a plant receptacle. A pair of metallic electrodes are positioned on opposite sides of a plant receptacle adjacent the interior wall thereof and at a distance from the top of the receptacle which corresponds to the normal root depth of a plant to be contained therein. Each electrode extends externally of the receptacle for electrical connection to one probe lead or terminal of a resistance meter. When a plant is potted with soil in the receptacle, the resistance measured between the terminals is related to the moisture content of the potting soil.

REFERENCES:
patent: 882699 (1908-03-01), Latshaw
patent: 2171329 (1939-08-01), Boone
patent: 2468972 (1949-05-01), Hagerty
patent: 2611643 (1952-09-01), Higgins
patent: 2721101 (1955-10-01), Richard, Jr.
patent: 2824282 (1958-02-01), Posey
patent: 2949551 (1960-08-01), Sturgeon
patent: 2968688 (1961-01-01), Skinner
patent: 3180144 (1965-04-01), Bennett
patent: 3536999 (1970-10-01), Mandler et al.
patent: 3601693 (1971-08-01), Lorentzen

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