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A low silhouette horizontal-type venting system for an electric storage battery including an electrolyte drainage aperture(s) at one end of the system, an exhaust port at the other end of the system and an electrolyte trapping and refluxing chamber between the aperture(s) and port wherein the chambe

A low silhouette horizontal-type venting system for an electric storage battery including an electrolyte drainage aperture(s) at one end of the system, an exhaust port at the other end of the system and an electrolyte trapping and refluxing chamber between the aperture(s) and port wherein the chamber is divided into an antechamber and a sump chamber having oppositely sloping floors leading downwardly to the drainage aperture. A narrow electrolyte upflow restricting slot(s) communicates the antechamber with the sump chamber. Baffles are provided in the sump chamber to inhibit electrolyte movement therethrough. Narrow channels are provided at the slot(s) and drainage aperture(s) for capillarily refluxing electrolyte back to the sump and cell, respectively.

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An electric storage battery comprising a case for housing the battery\s active elements, a cover secured to said case and a horizontal-type vent system formed in said cover for relieving gases from the innards of the battery while inhibiting electrolyte escape therefrom wherein said vent system comp

An electric storage battery comprising a case for housing the battery\s active elements, a cover secured to said case and a horizontal-type vent system formed in said cover for relieving gases from the innards of the battery while inhibiting electrolyte escape therefrom wherein said vent system comprises: an electrolyte drainage aperture for refluxing electrolyte to said innards; an exhaust port for passing said gases to the ambient; an antechamber adjacent said exhaust port, said antechamber being defined in part by a canted floor sloping downwardly from said port in a first direction toward a sump; a sump at substantially the low point of said canted floor, said sump being defined in part by an inclined floor lying beneath said canted floor and sloping downwardly toward said aperture in a direction substantially different than said first direction; partition means extending from and above said inclined and canted floors, said partition means further defining said sump and separating it from said antechamber and said innards; and a substantially vertical slot in said partition means at substantially said low point of said canted floor for providing flow communication between said sump and said antechamber, said slot being sufficiently narrow as to permit egress of gas from said sump and regress of electrolyte to said sump but inhibit egress of electrolyte from said sump; whereby any electrolyte invading said sump from said innards must first travel upwardly in one direction along said inclined floor, traverse said slot, and then travel upwardly along said canted floor in a substantially different direction before sufficiently nearing said exhaust port to permit possible escape therethrough.