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:
Oct. 23, 2012
Filed:
Dec. 04, 2009
Gunnar Sjödin, Karlskoga, SE;
Maria Pettersson, Stora Mellösa, SE;
Peder Haraldsson, Örebro, SE;
Magnus Walter, Örebro, SE;
Lennart Donsé, Åkersberga, SE;
Per-erik Larsson, Örebro, SE;
Gunnar Sjödin, Karlskoga, SE;
Maria Pettersson, Stora Mellösa, SE;
Peder Haraldsson, Örebro, SE;
Magnus Walter, Örebro, SE;
Lennart Donsé, Åkersberga, SE;
Per-Erik Larsson, Örebro, SE;
Atlas Copco Rock Drills AB, Orebro, SE;
Abstract
An accumulator membrane unit () for inclusion into an accumulator chamber () in an accumulator () for storing hydraulic energy under pressure. The accumulator membrane unit includes membrane elements () that are sealingly joined at their peripheries and limit an inside membrane volume (V) which varies in dependence of a pressure at an outside of the accumulator membrane unit. The invention also concerns an accumulator, a method and a rock drilling machine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile