Automatic-level battery cell liquid filling portable device

Abstract

Abstract In a preferred embodiment of the present invention there is provided a water-filling device for the filling of battery cells particularly of an industrial plant type directed toward the problem of obtaining a level of liquid within the battery as desired in an predetermined and automatically obtainable amount by virtue of the present inventive device which automatically turns off the flow of the filling-pump nozzle by virtue of the highly sensitive but safely low voltage and amperage currents embodying alternate levels of selector-type switch controls, together with a pump-protective circuit breaker utilized in conjunction with a fuse for initating the breaking of circuit to turn-off the pump, the alternate levels of filling being made possible by a first probe connected to the battery-negativeterminal being immersed within the battery liquid during the filling and the battery-positive-terminal probe elements being alternately selectable by a electro-switch and being spaced above the battery-negative-terminal probe at different heights along the filling nozzle''s surface on the outer surface thereof and being laterally spaced from one another in non-vertical alignment to prevent droplet drainage from short-circuiting between the alternate terminals, the pump automatically turning-off when the liquid level reaches the pre-selected positive terminal to established circuitry conductance, and the low level of voltage and current with high sensitivity being achieved by the positive probe terminal being directed through the transistor base lead and outwardly from the emitter lead of the transistor with the collector lead being connected to the negative terminal such that when current passes between the probes as the pre-selected liquid levels is reached, the current passes upwardly into the base lead to result a current being passed from the emitter lead in an amount sufficient to activate a relay which opens a switch feeding second relay whereupon the second relay with its circuitry broken no longer holds closed the pump actuating switch which when the second relay is not activated assumes an open position to turn off the pump, the circuit breaking third relay serving to hold closed an additional switch and the circuitry of the second relay so long as the current flows through the third relay and when a fuse after an overload of the current relay in series therewith, becomes burned-out, the deactivated third relay serving thereby to keep-closed the additional switch such that the second relay is deactivated and the second switch to the pump becomes opened to turn-off the pump as a result of the burned-out fuse. Another preferred aspect of the present invention has to do with the portable nature of the new simplified circuitry and pump combination on a roller-supported stand carrying all circuitry and a water-containing reservoir together with a protected power source to prevent sparks and/or accidental shocking of the worker.

Inventors

• 👤 David C Haughn
• 👤 Peter C Gaddi

Bibliographic Details