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:
Jun. 07, 2005
Filed:
Mar. 13, 2002
Herbert Baltes, Losheim, DE;
Markus Lehnert, Dillingen, DE;
Herbert Baltes, Losheim, DE;
Markus Lehnert, Dillingen, DE;
HYDAC Technology GmbH, Sulzbach/Saar, DE;
Abstract
A hydraulic accumulator includes an accumulator housing () and a diaphragm () forming a displaceable partition element in the housing between a gas chamber () and a liquid chamber (). The membrane has several annular regions (), interconnected by annular weak points (). The annular regions (), have protuberances () on the interior face of the membrane () facing away from the wall of the accumulator housing (). The protuberances are at their thickest in the central region between adjacent weak points, thus increasing the wall thickness of the membrane (), and are at least partially convex (), tapering off to a respective flat form towards the weak points.