EP 0531316 A4 19930526 - HYDROSTATIC DRAIN PLUG
Title (en)
HYDROSTATIC DRAIN PLUG
Publication
Application
Priority
AU PJ997490 A 19900504
Abstract (en)
[origin: WO9116847A1] A hydrostatic drain plug/outlet assembly comprises a hollow body (1) with an inlet port and an outlet port for connection to a fluid conduit. A slidable valve member (6) is movable between a locked open position and a locked closed position via an intermediate position at which the valve member (6) is urged into sealing engagement with a sealing member (3) by a spring (21) which supports a hydrostatic pressure of predetermined magnitude beyond which excess hydrostatic pressure is relieved by the valve member to prevent liquid overflow in a vessel. The valve member is moved between the locked open position and the locked closed position by rotation of valve member (6).
IPC 1-7
IPC 8 full level
A47K 1/00 (2006.01); A47K 1/14 (2006.01); E03C 1/23 (2006.01); E03C 1/232 (2006.01); E03C 1/24 (2006.01); E03C 1/242 (2006.01); F16K 17/04 (2006.01); F16K 17/06 (2006.01)
CPC (source: EP)
A47K 1/14 (2013.01); E03C 1/23 (2013.01); E03C 1/2306 (2013.01); E03C 1/232 (2013.01); E03C 1/242 (2013.01); E03C 2001/2317 (2013.01)
Citation (search report)
- [X] AU 6615781 A 19810716 - MCKAY S K
- [A] CA 875802 A 19710720 - K S H SELCK CANADA LTD
- See references of WO 9116847A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9116847 A1 19911114; EP 0531316 A1 19930317; EP 0531316 A4 19930526; JP H05507008 A 19931014
DOCDB simple family (application)
AU 9100178 W 19910502; EP 91909000 A 19910502; JP 50870391 A 19910502