Apparatus and method for use in determining conditions related t

Details Apparatus and method for use in determining conditions related t Apparatus and method for use in determining conditions related t

1976-02-05

1978-01-24

Queisser, Richard C.

Measuring and testing

Miscellaneous

73 73, 324 65P, 356227, G01N 3318

Patent

active

040697169

ABSTRACT:
A method and apparatus for use in detecting conditions related to a plant are disclosed. More particularly, in accord with the invention, in the method and apparatus are provided a first sensing means for generating an electrical signal corresponding to the light level in the area surrounding a plant, an indication means comprising a meter for providing an indication or reading corresponding to the electrical signal generated by the sensing means, and a reference source in the form of a chart or table for relating the aforesaid indication or reading to a preselected reading associated with the particular plant.
In a further aspect of the invention, a second sensing means is additionally provided for sensing another condition of the plant and a coupling means is provided for selectively coupling the first and second sensing means to the meter of the indication means. Moreover, in this form of the invention, a second reference source is provided for presenting reference readings corresponding to the condition being sensed by the second sensing means.
Also disclosed is a housing for the apparatus which is designed to have storage capabilities and to permit easy use thereof.

REFERENCES:
patent: 2015431 (1935-09-01), McIlvaine
patent: 2793527 (1957-05-01), Turner, Jr. et al.
patent: 3019384 (1962-01-01), Wayne
patent: 3117442 (1964-01-01), Brooks
patent: 3779651 (1973-12-01), Gunlock
patent: 3806797 (1974-04-01), Harvey
patent: 3876312 (1975-04-01), Harcrow, Jr.
patent: 3881873 (1975-05-01), Klowden

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