초록 ▼

A liquid filling device for watering batteries comprises a body having first and second water ports that extend through the body and connect within it to first and second water passages that are independent of one another. A trap is disposed the device at a position below the first and second water

A liquid filling device for watering batteries comprises a body having first and second water ports that extend through the body and connect within it to first and second water passages that are independent of one another. A trap is disposed the device at a position below the first and second water passages. A bell chamber is disposed at an outlet of the trap and includes an open end. Water passes through the device via a one of the first or second water passages, through the trap, through the bell chamber and into a battery cell. The device traps a volume of air therein and pressurizes the trapped air, as the electrolyte level in the cell rises to a determined level, to an amount at least equal to the head pressure of water in the device, thereby terminating further water flow into the cell. The device includes a gas vent for releasing gas pressure from the cell to the atmosphere or to collection for further treatment. The device is operated by imposing a pressure differential, by either pressure or vacuum conditions, between water inlet and outlet passages of sufficient amount to effect water flow into and through the device.

대표청구항 ▼

[ What is claimed is:] [1.] A method for replenishing an electrolytic cell with water to a determined electrolyte level comprising the steps of:creating a pressure differential between a water inlet passage and water outlet passage of a liquid filling device, causing water to pass through a water in

[ What is claimed is:] [1.] A method for replenishing an electrolytic cell with water to a determined electrolyte level comprising the steps of:creating a pressure differential between a water inlet passage and water outlet passage of a liquid filling device, causing water to pass through a water inlet passage of the device, through a trap of the device, through a bell chamber of the device, and into an electrolytic cell;forming a volume of trapped air within the bell chamber and trap when the level of electrolyte within the cell reaches an open end of the bell chamber;pressurizing the volume of trapped air in the device by continued passage of water to the electrolytic cell until the pressure of the trapped air at least equals a head pressure of water in the device caused by the level of water in the device; andterminating the passage of water into the electrolytic cell to achieve a determined electrolyte level when the pressure of the trapped air at least equals a head pressure of water in the device, wherein the determined electrolyte level is achieved independent of the pressure of water entering the device; and wherein the volume of trapped air prevents electrolyte from passing into the trap during a replenishing operation and after a desired electrolyte level has been achieved.