EP 2574874 B1 20190403 - Striking mechanism for a hammer device and method for opening a tap hole
Title (en)
Striking mechanism for a hammer device and method for opening a tap hole
Title (de)
Schlagwerk für eine Hammereinrichtung und Verfahren zum Offenstellen einer Abstichöffnung
Title (fr)
Sonnerie pour une installation de marteau et procédé de maintien de position ouverte d'un trou de coulée
Publication
Application
Priority
AT 13972011 A 20110927
Abstract (en)
[origin: EP2574874A1] The impact tool has a tubular piston (1) that is structured and arranged for axial displacement in impact tool housing (2) via a pressure medium. The radial pressure surfaces (11,11) are structured and arranged on opposite portions of tubular piston to be acted on with pressure medium. The grooves are provided with a control recess formed in tubular piston and two control grooves (3,3) for shift of pressure medium impingement on pressure surfaces. A controller (4) is structured and arranged to alternatively activate two control grooves via connection channels (42,42). An independent claim is included for method for opening tapping opening in wall of metallurgical vessel provided with fire-proof in-feed using impact tool.
IPC 8 full level
F27D 3/15 (2006.01)
CPC (source: EP KR US)
B25D 9/26 (2013.01 - KR US); F27D 3/1527 (2013.01 - EP KR US); F27D 3/1536 (2013.01 - EP KR US)
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)
EP 2574874 A1 20130403; EP 2574874 B1 20190403; AT 511810 A4 20130315; AT 511810 B1 20130315; BR 102012024285 A2 20150106; BR 102012024285 B1 20220607; CA 2790905 A1 20130327; CA 2790905 C 20150210; CN 103009342 A 20130403; CN 103009342 B 20150923; JP 2013071243 A 20130422; JP 5605858 B2 20141015; KR 101441908 B1 20140923; KR 20130034000 A 20130404; MX 2012011063 A 20130327; RU 2012141226 A 20140410; RU 2529133 C2 20140927; TW 201336639 A 20130916; TW I533982 B 20160521; UA 105950 C2 20140710; US 2013075120 A1 20130328; US 2016169582 A1 20160616; US 9347709 B2 20160524; US 9903655 B2 20180227; ZA 201207209 B 20130629
DOCDB simple family (application)
EP 12181332 A 20120822; AT 13972011 A 20110927; BR 102012024285 A 20120925; CA 2790905 A 20120926; CN 201210449256 A 20120926; JP 2012197833 A 20120823; KR 20120108354 A 20120927; MX 2012011063 A 20120925; RU 2012141226 A 20120926; TW 101130345 A 20120822; UA A201211188 A 20120926; US 201213627297 A 20120926; US 201615052306 A 20160224; ZA 201207209 A 20120926