Flow control device for use with a battery formation tub

A flow control device adapted for use in conjunction with at least one of a vertically aligned array of storage battery formation tubs including at least a first and second formation tub, to control fluid flow between the interior and drain of the first, lower formation tub, the flow control device comprising:

• (a) a longitudinally extending, hollow cylindrical member having a first end adapted to engage the drain of the first formation tub, and a second end positioned beneath the drain of the second formation tub, the cylindrical member having at least one aperture extending through the cylindrical member, to the interior of the cylindrical member;
• and
• (b) a first sleeve movable along portions of the cylindrical member and having drainage means associated therewith, the first sleeve being movable between a first and second mode so that
• (i) the first sleeve covers at least selected portions of the aperture to regulate fluid communication through the cylindrical member in the first, fluid regulating mode, and
• (ii) the first sleeve extends beyond the first end of the cylindrical member to permit fluid to exit through the drainage means in the second, fluid drainage mode.

A flow control device adapted for use in conjunction with a storage battery formation tub to control fluid flow between the interior and drain of the formation tub, the flow control device comprising:

• (a) a hollow member having an end adapted to engage the drain of the formation tub, and having at least one aperture extending through the member to its interior;
• and
• (b) a sleeve movable along portions of the member and having drainage means associated therewith, the sleeve being movable between a first and second position so that:
• (i) the sleeve covers at least portions of the aperture in the first, fluid regulating position, and
• (ii) the sleeve extends beyond the end of the member, thereby permitting fluid to flow through the drainage means, in the second, fluid drainage position.

A flow control device adapted for use in conjunction with at least one of a plurality of vertically arrayed storage battery formation tubs, including at least a first, lower formation tub and a second, upper formation tub, to control fluid flow between the interior and drain of the first formation tub, the flow control device comprising:

• (a) a hollow member having a first end adapted to engage the drain of the first formation tub, and a second end positioned beneath the drain of the second formation tub, and having at least one aperture extending through the member to its interior;
• and
• (b) a first sleeve movable along portions of the member and having drainage means associated therewith, the first sleeve being movable between a first and second position so that:
• (i) the first sleeve covers at least portions of the aperture in the first, fluid regulating position, and
• (ii) the first sleeve extends beyond the first end of the member, thereby permitting fluid to flow through the drainage means, in the second, fluid drainage position.