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:
Jul. 07, 2015
Filed:
Oct. 21, 2011
Christian Capsius, Rümpel, DE;
Christian Capsius, Rümpel, DE;
MINIMAX GMBH & CO. KG, Bad Oldesloe, DE;
Abstract
A preaction dry pipe alarm valve () is provided for a sprinkler pipework () and sprinklers with a fire detection and extinguishing control panel (). A water supply (and an air feed () are selectively in communication with the sprinkler pipework. A pilot control chamber () of the preaction dry pipe alarm valve () is depressurized in case of a fault message from the fire detection and extinguishing control panel (). When the pilot control chamber () is depressurized and, in the case of a decreasing pressure in the sprinkler pipework (), a quick opener () opens the valve head () of the preaction dry pipe alarm valve (), so that extinguishing water can flow into the dry pipework (). The system allows very short flooding times for the sprinkler pipework with no additional rapid vents installed in the pipework.