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:
Feb. 26, 2008
Filed:
May. 17, 2004
Ulrich Schiestl, Feldkirch, AT;
Ulrich Schiestl, Feldkirch, AT;
Hilti Aktiengsellschaft, Schaan, LI;
Abstract
A pressure container filled with a propellant () includes an outer container (), an inner bag () arrangeable in the outer container, and a cover () for closing the outer container () and provided with an inlet/outlet valve element (), with the propellant () being formed in the propellant chamber () of the inner bag () by a mixture of an inert gas () in the propellant chamber () with a gaseous phase () of a filling material () in the filling material chamber () of the outer container (); and the method of forming the pressure container includes inserting an inner bag () filled with an inert gas () into the outer container (), closing the outer container () with a cover (), and filling the filling material chamber () of the outer container () with a filling material () having a gaseous phase () that migrates from the filling material chamber () into the propellant chamber () of the inner bag (), and forms therein, together with the inert gas (), the propellant ().