Plant husbandry – Frost preventing
Patent
1976-08-02
1978-02-07
Burr, Edgar S.
Plant husbandry
Frost preventing
24263R, 47 9, 47 32, 150 3, A01G 1300
Patent
active
040719740
ABSTRACT:
Thermal energy retaining means for use in covering soil adjacent growing plants and including a water tight elongated tubular sleeve enclosure having support means at opposed ends thereof. The support means consist of planar means or generally inverted "U" shaped configuration, and each comprising a pair of generally parallelly disposed legs spaced apart by an upper fixed cross-member. A second cross-member, slidably coupled to the legs of the inverted "U" shaped bracket is provided which extends generally parallel to the upper cross-member to form a jaw to receive the tubular sleeve material therebetween. After filling with water, the width of the tubular sleeve material is placed within the jaw of the hanger means, the hanger means then being rotated about the sleeve so as to seal the ends of the sleeve and adjust the axial length thereof.
REFERENCES:
patent: 2109881 (1938-03-01), Goldberg
patent: 2241029 (1941-05-01), Harrison
patent: 3206892 (1965-09-01), Telkes et al.
patent: 3860172 (1975-01-01), Platt
Bratlie Steven A.
Burr Edgar S.
Haugen Orrin M.
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