Installation for cultivating plants

Details Installation for cultivating plants Installation for cultivating plants

1976-10-13

1979-07-03

Burr, Edgar S.

Plant husbandry

Frost preventing

47 9, 47 19, 165 45, 165107D, 237 1R, 237 13, A01G 1300

Patent

active

041595955

ABSTRACT:
An installation for cultivating plants on a soil, characterized in that it comprises at least one heat-exchanger, each of said exchangers being constituted by an elongated flat flexible hose with a then wall resting on the soil, and feed means for circulating liquid of a preselected regulated temperature through each of said hoses.

REFERENCES:
patent: 806901 (1905-12-01), Mendenhall
patent: 1260914 (1918-03-01), Kline
patent: 1374416 (1921-04-01), Wilde
patent: 3166458 (1965-01-01), Chinn et al.
patent: 3205619 (1965-09-01), Henry
patent: 3206892 (1965-09-01), Telkes et al.
patent: 3362106 (1968-01-01), Goldring
patent: 3470943 (1969-10-01), Van Huisen
patent: 3727345 (1973-04-01), Smith
patent: 3833013 (1974-09-01), Leonard
patent: 3863710 (1975-02-01), Masters
patent: 3989572 (1976-11-01), Swartz
patent: 3993122 (1976-11-01), Svenstam

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