Patent · US Active

Battery water-refill plug

US10615402B2 · kind B2 · utility

0Cited by

10References

6Claims

0Family size

Assignee

FROETEK VERMOEGENSVERWALTUNG GMBH · DE

Inventors

Joachim Gruppe · Bad Lauterberg, DE
Gerd Hoogestraat · Bad Lauterberg, DE
Thomas Koch · Kleinwallstadt, DE
Sebastian MATHES · Kalefeld, DE
Peter Steffahn · Bad Lauterberg, DE
Sebastian Weny · Bad Lauterberg, DE

Key dates

Filing date	Feb 18, 2016
Grant date	Apr 7, 2020
Priority date	—
Expiry date	Apr 8, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A water-refill plug for automatically filling and refilling the cells of the battery has a housing forming a valve seat, and forming an upper and lower guides above and below the valve seat. A float is movable vertically in the housing below the seat in one of the cells of the battery. A valve body vertically movable independently of the float body has upper and lower end vertically slidable in the upper and lower guides. A magnetically attractable or repellable element or permanent magnet is provided on one of the bodies. Another permanent magnetic on the other of the bodies exerts a force via the element or magnet so the valve body is moved by the float body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.