Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Patent
1976-09-07
1977-12-13
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
220 236, 249105, H01M 202
Patent
active
040630072
ABSTRACT:
A battery container made of molded plastic and preferably formed in a single unitary structure. The container comprises a generally rectangular hollow container with a plurality of internal partitions formed as integral parts of the container bottom and side walls dividing the interior space into a plurality of battery cells. A plurality of ribs are formed on the mold surface that forms the bottom of the container, the ribs being in alignment with the cavities between adjacent mold cores and forming a plurality of parallel grooves in the lower surface of the container bottom. The ribs are at least as wide as the width of the cavities between adjacent cores at the top of the container so that the upper ends of the partitions formed in said cavities fit into the resulting grooves formed by the ribs when the containers are stacked on top of each other. The mold gates are formed in the centers of the ribs, and the feed nozzles extend all the way through the ribs to avoid any reduction in the groove depth due to buildup of plastic at the gates. To maintain a substantially uniform thickness in the bottom of the container in the gate regions, the corners of the mold cores are provided with recesses adjacent the gate regions, thereby increasing the thickness of the lower ends of the partitions in those regions.
REFERENCES:
patent: 2610760 (1952-09-01), Ball
patent: 2896809 (1959-07-01), Metzger et al.
patent: 3561158 (1971-02-01), Marcan
patent: 3767156 (1973-10-01), Sullivan et al.
Gould Inc.
Walton Donald L.
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