EP 0025833 B1 19820728 - GAS BLAST SWITCH
Title (en)
GAS BLAST SWITCH
Publication
Application
Priority
CH 862679 A 19790925
Abstract (en)
[origin: CA1140190A] INVENTOR: RUDOLF GRAF INVENTION: GAS-BLAST SWITCH A gas-blast switch provided with two coaxially arranged contact elements which can be brought into and out of engagement with one another by carrying out an axial movement. The first contact element which is connected with a drive is arranged in a fixed reference position forwardly of a blast nozzle. The blast nozzle is connected at its inlet side with a compression chamber or space which can be pressurized during the cut-off stroke of the gas-blast switch. In the cut-on stroke of such gas-blast switch the second contact element engages with the blast nozzle. The second contact element is surrounded by a screening body which, in turn, can be shifted back by means of the blast nozzle, during a cut-on stroke of the gas-blast switch, out of its advanced position in the cut-off position, against the action of a spring, along the second contact element. In order to more rapidly increase the spacing between both contact elements at the start of a cut-off stroke than such would correspond to the path of the cut-off stroke, the screening body and the second contact element are coupled with one another so as to perform opposite movements in relation to one another.
IPC 1-7
IPC 8 full level
H01H 33/91 (2006.01); H01H 33/24 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/245 (2013.01 - EP US); H01H 2033/028 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB NL
DOCDB simple family (publication)
EP 0025833 A1 19810401; EP 0025833 B1 19820728; AT E1400 T1 19820815; CA 1140190 A 19830125; CH 644969 A5 19840831; DE 3060707 D1 19820916; JP S5654723 A 19810514; US 4378477 A 19830329; ZA 805055 B 19810826
DOCDB simple family (application)
EP 80104262 A 19800719; AT 80104262 T 19800719; CA 357385 A 19800731; CH 862679 A 19790925; DE 3060707 T 19800719; JP 13366780 A 19800925; US 17764280 A 19800813; ZA 805055 A 19800818