Abstract: An improved vent cap system for use in an electrochemical battery is provided which includes a ring flange for forming a ring seal between the vent cap assembly and the fill tube. When the vent cap assembly is positioned in the battery housing, the ring flange and the fill tube deform to create a seal therebetween to provide a fluid tight seal.

Abstract: An improved vent cap system for use in an electrochemical battery is provided which includes a ring flange for forming a ring seal between the vent cap assembly and the fill tube. When the vent cap assembly is positioned in the battery housing, the ring flange and the fill tube deform to create a seal therebetween to provide a fluid tight seal.

Abstract: A battery cover for a battery casing has a plurality of electrolyte containing cells, a primary cover and a secondary cover. The primary cover has a plurality of barrels arranged along a longitudinal axis and the secondary cover has a plurality of tubular elements extending downwardly and insertable in the barrels of the primary cover. Each of the tubular elements has an inner tubular member and an outer tubular member. The outer tubular member has an axially extending cutout portion which runs from its tip to the surface of the secondary cover. The battery cover also has a plurality of baffles defining a circuitous passageway for gases which are evolved in the cells of the battery to be released to an external port located on the secondary cover.

Abstract: A combined dual ganged manifold and cover arrangement for batteries features channeling of gas flow to an explosion attenuation device located between the manifolds and a cover designed for maximizing return to the battery of any electrolyte which may contact the cover from vibration, tilting, overheating, overcharge and the like. Splash barrels within the cover include a unique acid level indicator, and feet are provided on the manifold to prevent the manifolds from inadvertently being used with other cover designs. The arrangement is particularly useful for batteries having terminal posts lying along the battery centerline. The cover utilizes external and internal gas pick-up systems and perpetual hill and infinite well concepts to control acid flow. A narrow channel reduces standing wave electrolyte surface violence.