Plant husbandry – Frost preventing
Patent
1983-08-01
1985-04-30
Hafer, Robert A.
Plant husbandry
Frost preventing
A01G 1300
Patent
active
045135290
ABSTRACT:
A vehicle-mounted machine for preventing frost damage to growing crops comprises an upright shell that defines a plenum chamber, having an upwardly opening air inlet in its top and having plural rearwardly extending tubular heating chambers opening from its bottom portion. A fan coaxially mounted in the front of each heating chamber draws air from the plenum chamber and propels it across a propane burner that is coaxially mounted in the heating chamber behind the fan. Discharged air, mixed with combustion gases from the burner, has a temperature of about 45.degree. F. and is emitted rearwardly downwardly and obliquely to both sides of the machine to mix with cold surface air. A field or grove protected by the machine is divided into a grid of equal-area zones, each having a high pole atop which there is a light that is turned on when a sensor near ground level detects a temperature above but near freezing. The machine moves to where it is needed, as indicated by lighting of the lights.
REFERENCES:
patent: 2658308 (1953-11-01), Fowler, Jr. et al.
patent: 2712714 (1955-07-01), McGee
patent: 2807120 (1957-09-01), Graham
patent: 3003282 (1961-10-01), Davies
patent: 3120949 (1964-02-01), Robinson
patent: 3210059 (1965-10-01), Nesbitt et al.
patent: 3570828 (1971-03-01), Cowan
patent: 4138675 (1979-02-01), Eakin
Custin James R.
Hafer Robert A.
Lewis Bradley M.
Nilles James E.
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