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:
Jul. 05, 2022
Filed:
Nov. 16, 2018
Hydac Filtertechnik Gmbh, Sulzbach/Saar, DE;
Michael Kerber, Merzig, DE;
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A closure device for a fluid container, in particular a hydraulic tank, has a base (), which can be attached to the container opening and has a cover part (), which encloses a ventilation and/or a filter device (). The cover part () is held on the base () so as to be freely rotatable in a functional unlocking position. In a functional locking position, the closure device permits the container opening to be unlocked by a safety device () while connecting the cover part () to the base (). The safety device () can be actuated by a magnetic device generating a magnetic field (). The magnetic device establishes the functional locking position of the cover () and the base () by magnetic force.