Filler unit for topping up a container with liquid
US4544004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Jan 24, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery filler unit for automatically filling a battery container to a predetermined level consists of a vessel containing liquid to be dispensed into the battery. The vessel is supplied with liquid in a manner to maintain a constant head in the vessel. An orifice in the bottom of the vessel above a downpipe, extending in use into the top of a battery, ensures that an air seal is formed across the orifice by the action of surface tension of the dispensing liquid. As the container fills, air is trapped in the downpipe and dispensing of liquid from the vessel ceases when a pressure equilibrium is established, at which time the liquid level in the container will be at a predetermined desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.