EP 3003603 A4 20170222 - LEAD RETAINING PURGE PLUG
Title (en)
LEAD RETAINING PURGE PLUG
Title (de)
BLEIAUFNEHMENDER ENTLÜFTUNGSSTECKER
Title (fr)
BOUCHON DE PURGE RETENANT LE PLOMB
Publication
Application
Priority
- US 201361832374 P 20130607
- US 2014036787 W 20140505
Abstract (en)
[origin: WO2014197151A1] A purge plug containing a refractory material is configured to be inserted in the bottom of a ladle for introducing purging gas through a heat of molten metal in the ladle. The purge plug houses a retention chamber for holding the lead content of lead-containing molten steel alloys that leaches into, or infiltrates into, the purge plug. The purging gas supply tube is provided with a portion that protrudes into the retention chamber, thereby preventing the lead content of lead-containing molten steel alloys from entering and blocking the purging gas supply tube.
IPC 8 full level
CPC (source: EP US)
B22D 1/005 (2013.01 - EP US); C21C 5/48 (2013.01 - EP US); C21C 7/0075 (2013.01 - EP US); C21C 7/072 (2013.01 - EP US)
Citation (search report)
- [XAY] DE 4312981 A1 19941027 - DYKO INDUSTRIEKERAMIK GMBH [DE]
- [XY] DE 3907500 C1 19900823
- [XY] US 5573724 A 19961112 - SOOFI MADJID [US], et al
- [XY] DE 3441223 A1 19860515 - LICHTENBERG FEUERFEST [DE]
- [XY] US 4711432 A 19871208 - HEINZ MICHAEL [DE], et al
- [Y] US 4616809 A 19861014 - HOEFFGEN HANS [DE]
- [Y] DE 19948848 C1 20000713 - DOLOMITWERKE GMBH [DE]
- See references of WO 2014197151A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014197151 A1 20141211; AR 096463 A1 20151230; BR 112015030277 A2 20170725; CN 105377471 A 20160302; EP 3003603 A1 20160413; EP 3003603 A4 20170222; KR 20160016882 A 20160215; MX 2015016794 A 20160331; TW 201502279 A 20150116; US 2016121391 A1 20160505; ZA 201508456 B 20170830
DOCDB simple family (application)
US 2014036787 W 20140505; AR P140102166 A 20140603; BR 112015030277 A 20140505; CN 201480038674 A 20140505; EP 14807988 A 20140505; KR 20157036248 A 20140505; MX 2015016794 A 20140505; TW 103119633 A 20140606; US 201414896072 A 20140505; ZA 201508456 A 20151116