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:
Dec. 21, 2010
Filed:
Nov. 23, 2004
Ernst-werner Wagner, Winsen, DE;
Ernst-Werner Wagner, Winsen, DE;
Amrona AG (CH), Zug, CH;
Abstract
In the event of a failure of a fire prevention or extinguishing system, an inertization method reduces the fire risk in an enclosed protected area, where the oxygen content in the area can be maintained on a control concentration that lies below an operating concentration for a certain time period, so that the emergency operation phase is sufficiently long to prevent the ignition and/or re-ignition of combustible materials therein. The control concentration is maintained for an emergency operation period by a redundant secondary source. Alternatively, the control concentration and the operating concentration, while forming a safety margin, can be lowered so far below the design concentration that in the event of a primary source failure, the growth curve of the oxygen content reaches a limit concentration determined for the area in a predefined period, which is sufficiently long to continue to prevent the ignition and/or re-ignition of the combustible materials.