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:
Mar. 09, 2021
Filed:
Jun. 19, 2017
Hydac Technology Gmbh, Saar, DE;
Peter Kloft, Ransbach-Baumbach, DE;
Herbert Baltes, Losheim, DE;
Alexander Albert, Wallerfangen, DE;
HYDAC TECHNOLOGY GMBH, Sulzbach/Saar, DE;
Abstract
A hydropneumatic piston accumulator has an accumulator housing () defining a housing longitudinal axis () and a piston () longitudinally movable between two housing covers () positioned opposite each other. In the housing (), the piston () separates a working chamber () for a compressible medium, such as a working gas, from a working chamber () for an incompressible medium, such as hydraulic fluid. A piston part () of a displacement measurement device continuously determines each position of the piston () in the housing (). A rod-shaped guide () is stationarily positioned in the accumulator housing () and passes all the way through the piston () in each of its displacement positions in the accumulator housing (). The piston () is movably guided along the guide until it reaches the stop on one of the two housing covers () and is sealed against this guide () using a sealing device ().