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US 5,688,612 AGranted
Battery cover and vent cap interface seal
AssigneeGlobe-Union Inc.
InventorsEdward N. Mrotek, Thomas J. Dougherty, Gerald A. Cummins, Dean R. Walsten
Life of this patent
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AssigneeGlobe-Union Inc.
InventorsEdward N. Mrotek, Thomas J. Dougherty, Gerald A. Cummins, Dean R. Walsten
Estimating the term…
A battery cover and vent cap interface seal for electrical storage batteries is disposed between the vent opening in the battery cover and the vent cap to establish a fluid-fight seal. In a first embodiment an annular sealing member is provided in each vent opening in the battery cover. The sealing members extend slightly beyond the inner periphery of the vent opening in the cover and are compressed by the vent cap plugs as the vent cap is installed. In a second embodiment annular sealing members are provided around each plug on the vent cap. The sealing members extend slightly beyond the outer periphery of the plugs and are compressed as the vent cap is installed on the battery cover. The sealing members are made of a resilient material that deforms more easily than the materials used for the battery cover and vent cap.
In an electric storage battery including a battery cover having a substantially cylindrical wall portion surrounding a vent opening and a vent cap having a cylindrical plug for selectively plugging the vent opening, the improvement comprising an interface seal disposed intermediate the cylindrical wall portion and the cylindrical plug and formed integral with a generally annular recess formed in one of the cylindrical wall portion and the cylindrical plug, thereby establishing a gas and liquid-tight seal therebetween.
A cover for an electric storage battery comprising:
A removable vent cap for an electric storage battery including a cover having at least one vent opening, the vent opening having a substantially cylindrical wall portion, comprising:
Dependencies are inferred from the claim text.