EP 2174044 A1 20100414 - A VACUUM BREAK VALVE STRUCTURE
Title (en)
A VACUUM BREAK VALVE STRUCTURE
Title (de)
VAKUUMUNTERBRECHUNGSVENTILSTRUKTUR
Title (fr)
STRUCTURE DE SOUPAPE CASSE-VIDE
Publication
Application
Priority
SG 2007000225 W 20070731
Abstract (en)
[origin: WO2009017459A1] A vacuum break valve structure for an internal floating cover of a liquid storage tank and a method for preventing negative pressure buildup on an underside of an internal floating cover in a liquid storage tank. The vacuum break valve structure comprising a valve seat connected to said cover and defining an opening through said cover; a float valve not connected to the valve seat and disposed for substantially free movement under buoyancy between an open state and a closed state; wherein in the closed state the float valve contacts the valve seat and in the open state there is a passageway between the float valve and the valve seat.
IPC 8 full level
B65D 90/34 (2006.01); F16K 24/04 (2006.01); F16K 24/06 (2006.01); F16K 31/18 (2006.01); F16K 31/20 (2006.01)
CPC (source: EP)
B65D 88/40 (2013.01); B65D 90/34 (2013.01); F17B 1/26 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2009017459 A1 20090205; EP 2174044 A1 20100414; EP 2174044 A4 20110323
DOCDB simple family (application)
SG 2007000225 W 20070731; EP 07794239 A 20070731