Receptacles – Closures – Secondary closure within parameter of primary closure
Patent
1977-03-30
1978-04-11
Marcus, Stephen
Receptacles
Closures
Secondary closure within parameter of primary closure
220334, B65D 4316
Patent
active
040834700
ABSTRACT:
A cover for rectangularily shaped grain boxes includes an essentially vertical extending circumscribing wall which mates with the walls of the grain box to thereby extend the volume and the depth of the grain box, an inclined roof surmounting the extending and circumscribing wall, and two hingeable lids attached to the roof which, in their closed position form a part of the roof, shielding the contents of the grain box from direct exposure to the elements, and while in the open position exposing the interior of the box.
REFERENCES:
patent: 1424520 (1922-08-01), Richardson et al.
patent: 1552027 (1925-09-01), Baxter
patent: 1691160 (1928-11-01), Meuttman
patent: 1964513 (1934-06-01), Hammer
patent: 3235119 (1966-02-01), Smith
Stefanik Paul
Voytko John
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