Battery vent and filler opening structure

Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Having means to control electrolyte level when liquid is...

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Details

429 82, H01M 236

Patent

active

042118310

ABSTRACT:
A battery with at least one cell containing an electrolyte liquid, in which the cell is adapted to be connected with the atmosphere by way of a fill-in venting connection determining its liquid level and by way of a separate fill-in connection for the filling in of electrolyte liquid and for the refilling of distilled water as well as by way of a control opening for the insertion of a testing device for checking the operating condition, and in which the free flow cross section of the fill-in connection is dimensioned so narrowly that a liquid seal closing off the fill-in connection gas-tight will form under the influence of the capillary action and of the excess pressure which will be established during the fill-in operation into the cell, when the liquid enters the opening of the fill-in venting connection which terminates in the cell; a control opening which can be restoringly enlarged in its cross section is disposed in an elastic wall and is separate from the fill-in connection and essentially closed as such when the testing instrument is removed.

REFERENCES:
patent: 2346937 (1944-04-01), Olson
patent: 2516084 (1950-07-01), Wells
patent: 2930831 (1960-03-01), Hemig

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