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Class Information
Number: 218/59
Name: High-voltage switches with arc preventing or extinguishing devices > Arc preventing or extinguishing devices > Air-current blowout > Puffer piston > With gas blast means
Description: Subject matter including details of means which compress air to a certain pressure.










Sub-classes under this class:

Class Number Class Name Patents
218/61 Compressing cylinder structure 23
218/60 Piston structure 42


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8674253 Gas insulation apparatus Mar. 18, 2014
8633413 Switchgear assembly with a contact gap Jan. 21, 2014
8598483 High-voltage power switch having a contact gap equipped with switching gas deflection elements Dec. 3, 2013
8546716 Gas-blast circuit breaker with a radial flow opening Oct. 1, 2013
8530774 High voltage circuit breaker with improved gas exhaust Sep. 10, 2013
8399791 Interrupter arrangement having a movable switching tube Mar. 19, 2013
8389886 High-voltage circuit breaker with improved circuit breaker rating Mar. 5, 2013
8299384 Gas insulation circuit breaker with structure for decreasing friction Oct. 30, 2012
8148660 Gas-insulated high-voltage circuit breaker with a relief duct which is controlled by an overflow valve Apr. 3, 2012
8115132 Heavy-duty circuit breaker with a housing Feb. 14, 2012
8063335 Gas exhaust for circuit breaker Nov. 22, 2011
8030590 Gas-circuit breaker Oct. 4, 2011
8013268 Circuit breaker with a double acting circuit-breaking chamber and an inverted structure Sep. 6, 2011
7816618 Gas insulated switchgear Oct. 19, 2010
7763821 Puffer-type gas blast circuit breaker Jul. 27, 2010
7732727 Heavy-duty circuit-breaker with sealing against hot gas Jun. 8, 2010
7642480 Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube Jan. 5, 2010
7595461 Heavy-duty circuit breaker with erosion-resistant short-circuit current routing Sep. 29, 2009
7402771 Circuit breaker Jul. 22, 2008
7339132 Method of current interruption using puffer type gas circuit breaker with combined-action of cylinder and piston Mar. 4, 2008
7041928 Interrupter unit for a high-voltage power switch May. 9, 2006
6787725 Switching mechanism of circuit breaker for gas insulted switchgear Sep. 7, 2004
6730871 Compressed gas-blast circuit breaker May. 4, 2004
6660954 Gas-blast circuit-breaker Dec. 9, 2003
6624371 Circuit-breaker including a channel for emptying the piston-driven compression chamber Sep. 23, 2003
6515248 Gas circuit breaker Feb. 4, 2003
6472628 Circuit-breaker including a moving assembly contained inside a casing filled with a dielectric gas under pressure Oct. 29, 2002
6252190 Electrical high speed circuit breaker with explosive charges including ablative arc extinguishing material Jun. 26, 2001
6207918 Compressed gas power switch Mar. 27, 2001
6163001 Puffer type circuit breaker with arcing chamber, auxiliary shunting contacts and exhaust structure with pressure relief valves Dec. 19, 2000
6078485 Medium- and high-voltage gas-insulated circuit breaker with arc quenching means Jun. 20, 2000
6013889 Method for retaining a movable contact in a circuit interrupter Jan. 11, 2000
5978200 High-voltage circuit breaker with arc gas-blast Nov. 2, 1999
5939692 Gas-filled interrupter with compressible thermal expansion chamber Aug. 17, 1999
5808257 High-voltage gas-blast circuit-breaker Sep. 15, 1998
5783791 Gas insulated interrupter Jul. 21, 1998
5742017 Circuit-breaker provided with a closure resistance having an insertion assembly Apr. 21, 1998
5705781 Electrical gas-blast switch Jan. 6, 1998
5610381 Compression gas puffer type circuit breaker Mar. 11, 1997
5600111 Circuit-breaker having low self-compression Feb. 4, 1997
5578806 Compressed gas-blast circuit breaker Nov. 26, 1996
5561280 Compressed gas-blast circuit breaker Oct. 1, 1996
5543597 Grounding switch gear device Aug. 6, 1996
5510591 High tension circuit breaker capable of interrupting fault currents having a delayed zero crossing Apr. 23, 1996
5495084 Slip-through mounting structure for circuit interrupter Feb. 27, 1996
5478980 Compact low force dead tank circuit breaker interrupter Dec. 26, 1995
5095183 Gas-blast electrical circuit breaker Mar. 10, 1992
5079391 Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker Jan. 7, 1992
5079392 Gas circuit breaker Jan. 7, 1992
5072084 Gas circuit breaker Dec. 10, 1991

1 2 3










 
 
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