Fluid handling – Plural tanks or compartments with parallel flow – Battery or electrolytic cell replenishment
Reexamination Certificate
2008-07-01
2008-07-01
Rivell, John (Department: 3753)
Fluid handling
Plural tanks or compartments with parallel flow
Battery or electrolytic cell replenishment
C137S409000, C137S453000, C141S198000, C429S064000
Reexamination Certificate
active
11038302
ABSTRACT:
An automatic shut-off valve suitable for watering of batteries is disclosed. The valve is formed by a chamber having an inlet and an outlet. A seat surrounds the outlet. A spring biased piston within the cylinder is movable into and out of sealing engagement with the seat to open and close the valve. A flow deflecting surface is positioned between the inlet and the piston. Water flow is directed around the piston to eliminate drag that would force the piston into engagement with the seat. A second deflector surface directs flow against the piston to bias it open. An actuator cup, fed by a nozzle extending from the outlet, draws the piston into engagement with the seat when the cup is sealed by engagement with the electrolyte surface. The valve may also employ a float actuator connected to the piston.
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Alden Trevor
Jones William E. M.
Jones William E. M.
Price Craig
Rivell John
Synnestvedt & Lechner LLP
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