Receptacles – Closures – Floating closure
Patent
1974-08-16
1976-09-14
Lowrance, George E.
Receptacles
Closures
Floating closure
220368, B65D 5116
Patent
active
039801993
ABSTRACT:
A gas venting system for a liquid storage reservoir having a floating cover comprising a sheet of flexible material lying upon the liquid and attached to the reservoir sides. Elongated blocks of flotation material are attached to the underside of the cover and buoy the cover in such a way that the edge margins of the blocks and the adjacent portions of the cover define downwardly open collection spaces. A gas collection manifold in communication with these collection spaces receives and carries away gases collecting in the collection spaces. In one embodiment the flotation blocks include transverse conduits affording communication between the collection spaces on opposite sides of the blocks, with the transverse conduits being in communication with the gas collection manifold. In another embodiment the gas collection manifold includes perimeter conduits extending along at least one side of the reservoir, with certain of the elongated blocks extending up to these perimeter conduits to provide communication between the collection spaces and the perimeter conduits.
REFERENCES:
patent: 1513043 (1924-10-01), Huff
patent: 1777560 (1930-10-01), Griffin
patent: 2007193 (1935-07-01), Griffin
patent: 2601317 (1952-06-01), Moyer
patent: 2867347 (1959-01-01), Champagnat
patent: 3474931 (1969-10-01), Daniels et al.
patent: 3667641 (1972-06-01), Dial
Globe Linings, Inc.
Lowrance George E.
Moy Joseph M.
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