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:
Sep. 01, 2026
Filed:
Jul. 18, 2022
Hydac Technology Gmbh, Sulzbach / Saar, DE;
Peter Kloft, Ransbach-Baumbach, DE;
HYDAC TECHNOLOGY GMBH, Sulzbach/Saar, DE;
Abstract
Pressure accumulator with an accumulator housing (), in which a movable separating element () separates a medium space (), preferably filled with a working gas, from a fluid space () in a fluid-tight manner, wherein a monitoring device () is provided and gives a visually perceptible indication when there is a fault that impairs the sealing effect of the separating element (), the monitoring device having a viewing window through which it is possible to observe an indicator which is in connection with the medium space () and the optical property of which perceptibly changes when it is wetted with the fluid, characterized in that the monitoring device () has a screw plug, which can be screwed with its external thread into an assigned internal thread of the accumulator housing () and which has the viewing window and the indicator and also a fluid-permeable shutting-off device, which forms in the screw plug a receiving space partly delimited by the viewing window and intended for receiving the indicator, the shutting-off device spatially separating the receiving space from the interior of the medium space () of the accumulator housing ().