Weighing scales – Self-positioning – Spring
Patent
1977-02-09
1978-03-14
Miller, Jr., George H.
Weighing scales
Self-positioning
Spring
G01G 302
Patent
active
040786250
ABSTRACT:
An apparatus having a spring biased shaft provides vertical support to a hanging plant container. The weight of the container reflects the moisture content of the soil stored within the container. A plurality of bars are secured to the shaft providing a sight utilized in conjunction with a scale calibrated in terms of the moisture content of the soil, thereby advising the user when the plant needs water, or when a dangerous drought condition exists. An eye-hook is swivelably secured to the apparatus permitting the apparatus to be suspended downwardly from an overhead supporting surface, and permitting the plant to be rotated. A hook is formed at the lowermost end of the shaft, facilitating convenient support for the hanging plant container. Means are provided to adjustably vary the compression of the spring thereby allowing various size plant containers and plants to be utilized by the apparatus. An adjustable band encircles the apparatus and is positioned at a selected location indicating the maximum weight of a thoroughly soaked plant container thereby advising the user as to the maximum amount of water to be added to the container before encountering plant root rot or overflow spillage of the water.
REFERENCES:
patent: 264070 (1882-09-01), Forschner
patent: 1141562 (1915-06-01), Law
patent: 3967578 (1976-07-01), Gallo
Farkas Robert D.
Miller Jr. George H.
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