The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2020
Filed:
Feb. 18, 2016
Froetek Vermoegensverwaltung Gmbh, Osterode am Harz, DE;
Joachim Gruppe, Bad Lauterberg, DE;
Gerd Hoogestraat, Bad Lauterberg, DE;
Thomas Koch, Northeim, DE;
Sebastian Mathes, Kalefeld, DE;
Peter Steffahn, Bad Lauterberg, DE;
Sebastian Weny, Bad Lauterberg, DE;
FROETEK VERMOEGENSVERWALTUNG GMBH, Osterode am Harz, DE;
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.