EP 0398405 B1 19921216 - DUEL JET METHOD
Title (en)
DUEL JET METHOD
Publication
Application
Priority
DE 3915933 A 19890516
Abstract (en)
[origin: CA2042046A1] An additional coolant is added to a medium pressurized at very high pressures, especially over 1500 bar, particularly for cutting very hard rocks like granite. To this end the pressure medium is forced out in the form of individual narrow jets from a nozzle head (5) and the guiding jet (5g) of the coolant is directed towards at least some jets (5b) of the pressure medium so that, together with the pressure medium, a cooling effect is exerted on the object to be processed, resulting in an improved smashing effect.
IPC 1-7
IPC 8 full level
B26F 3/00 (2006.01); B28B 17/00 (2006.01); E21B 7/14 (2006.01)
CPC (source: EP US)
B26F 3/004 (2013.01 - EP US); B28B 17/0036 (2013.01 - EP US); E21B 7/14 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0398405 A1 19901122; EP 0398405 B1 19921216; AT E83421 T1 19930115; AU 5403890 A 19901218; AU 632325 B2 19921224; BR 9006867 A 19910806; CA 2042046 A1 19901117; CA 2042046 C 19941018; DE 3915933 C1 19901129; DE 59000596 D1 19930128; DK 0398405 T3 19930201; EP 0456768 A1 19911121; ES 2037518 T3 19930616; GR 3006737 T3 19930630; TR 25327 A 19930101; US 5255959 A 19931026; WO 9014200 A1 19901129; ZA 903356 B 19910130
DOCDB simple family (application)
EP 90200978 A 19900409; AT 90200978 T 19900409; AU 5403890 A 19900409; BR 9006867 A 19900409; CA 2042046 A 19900409; DE 3915933 A 19890516; DE 59000596 T 19900409; DK 90200978 T 19900409; EP 9000557 W 19900409; EP 90905515 A 19900409; ES 90200978 T 19900409; GR 920402811 T 19930107; TR 54990 A 19900524; US 68151791 A 19910506; ZA 903356 A 19900503