Soil moisture indicator

Details Soil moisture indicator Soil moisture indicator

1977-11-25

1978-12-19

Gorenstein, Charles

Measuring and testing

Moisture content or absorption characteristic of material

116114AM, 116118A, 422 55, G01N 502

Patent

active

041300122

ABSTRACT:
A soil moisture indicator including a rigid planar base member having sufficient strength to permit its partial insertion into soil adjacent growing plants and a water absorbent member, such as blotter paper, secured to the base member. Overlying the water absorbent sheet adhesively secured thereto is a transparent water impervious layer, the layer having an increment extending beyond the longitudinal extremities of the water absorbent sheet, the incremental portions being adhesively secured to the base member so that abrasive forces on the water absorbent sheet during insertion into the soil are avoided. An improved method for manufacturing the devices in a highly efficient and automated fashion.

REFERENCES:
patent: 3019638 (1962-02-01), Klein
patent: 3702755 (1972-11-01), Palmer
patent: 3824844 (1974-07-01), Strickland
patent: 3881873 (1975-05-01), Klowden
patent: 3951098 (1976-04-01), Meyers
patent: 4020785 (1977-05-01), Palmer
patent: 4063452 (1977-12-01), Bradshaw

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