EP 2774727 B1 20170913 - Control of the operating frequency of a striking mechanism
Title (en)
Control of the operating frequency of a striking mechanism
Title (de)
Steuerung der Arbeitsfrequenz eines Schlagwerkes
Title (fr)
Commande de la fréquence de travail d'un outil à percussion
Publication
Application
Priority
AT 501392013 A 20130304
Abstract (en)
[origin: EP2774727A1] The control device (S) has an element which is provided for reversing the axial pressurization of the percussion piston and the return of the medium. A channel is switchable by the reversal (2) as a return line for the medium from the percussion hammer having the switchable element (3) for flow control.
IPC 8 full level
B25D 9/14 (2006.01); C21B 7/12 (2006.01); F27D 3/15 (2006.01)
CPC (source: EP KR US)
B22D 41/20 (2013.01 - KR); B22D 41/40 (2013.01 - KR); B25D 9/14 (2013.01 - KR); B25D 9/18 (2013.01 - EP KR US); B25D 9/26 (2013.01 - EP KR US); C21B 7/12 (2013.01 - EP KR US); C21C 5/4653 (2013.01 - EP KR US); F27D 3/15 (2013.01 - KR); F27D 3/1527 (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 2774727 A1 20140910; EP 2774727 B1 20170913; AT 513849 A4 20140815; AT 513849 B1 20140815; BR 102014004844 A2 20141209; BR 102014004844 B1 20210608; CA 2844429 A1 20140904; CA 2844429 C 20180605; CN 104101216 A 20141015; CN 104101216 B 20180406; ES 2649476 T3 20180112; IN 459DE2014 A 20150619; JP 2014168841 A 20140918; JP 5921588 B2 20160524; KR 101754069 B1 20170705; KR 20140109314 A 20140915; PL 2774727 T3 20180228; RS 56633 B1 20180330; RU 2014108199 A 20150910; RU 2581324 C2 20160420; TW 201440971 A 20141101; TW I587990 B 20170621; UA 112550 C2 20160926; US 10035250 B2 20180731; US 2014290971 A1 20141002
DOCDB simple family (application)
EP 14154964 A 20140213; AT 501392013 A 20130304; BR 102014004844 A 20140227; CA 2844429 A 20140303; CN 201410077055 A 20140304; ES 14154964 T 20140213; IN 459DE2014 A 20140218; JP 2014037888 A 20140228; KR 20140025044 A 20140303; PL 14154964 T 20140213; RS P20171150 A 20140213; RU 2014108199 A 20140303; TW 103102387 A 20140123; UA A201402167 A 20140303; US 201414196378 A 20140304