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Class Information
Number: 361/618
Name: Electricity: electrical systems and devices > Housing or mounting assemblies with diverse electrical components > For electrical power distribution systems and devices > Electrical switchgear > Gas insulated
Description: Subject matter wherein an electrical switchgear material that prevents possible future contact of adjacent conductors resulting in a short circuit is a fluid having neither independent shape nor volume but tending to expand indefinitely.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8605412 Gas insulated switchgear Dec. 10, 2013
8587930 Gas-insulated bus Nov. 19, 2013
8552297 Insulation spacer for a gas insulated device and method of producing same Oct. 8, 2013
8411418 Vacuum insulated switchgear Apr. 2, 2013
8254088 Gas-insulated switchgear Aug. 28, 2012
8228665 Gas insulated switchgear Jul. 24, 2012
8189323 Gas-insulated switchgear apparatus May. 29, 2012
8173896 Fluid-insulated electrical apparatus May. 8, 2012
8111503 Gas-insulated switchgear Feb. 7, 2012
8000087 Gas insulated switchgear Aug. 16, 2011
7990688 Gas-insulated switchgear Aug. 2, 2011
7952855 Subsea switchgear apparatus May. 31, 2011
7944680 High-voltage switchgear May. 17, 2011
7903394 Gas-insulated switchgear Mar. 8, 2011
7835140 Gas-insulated electric power apparatus Nov. 16, 2010
7787097 Flexible base material and flexible image-displaying device resistant to plastic deformation Aug. 31, 2010
7764486 Gas-insulated power apparatus Jul. 27, 2010
7675738 Gas insulated switchgear Mar. 9, 2010
7515401 Compact display module Apr. 7, 2009
7417847 Compact current transformer casing for gas-insulated switchgear assemblies Aug. 26, 2008
7417846 Gas-insulated switchgear Aug. 26, 2008
7158369 Single phase or polyphase switchgear in an enveloping housing Jan. 2, 2007
6865072 Metal-enclosed switchgear Mar. 8, 2005
6831828 Gas-insulated switchgear Dec. 14, 2004
6646861 Gas insulated switchgear Nov. 11, 2003
6631075 Switchgear Oct. 7, 2003
6614648 Bus line conductor container and gas insulated switchgear device using the same Sep. 2, 2003
6560091 Gas insulated switchgear May. 6, 2003
6556428 Gas insulated switchgear Apr. 29, 2003
6538877 Gas insulation switch Mar. 25, 2003
6459567 Gas-insulated switchgear Oct. 1, 2002
6459569 Switchgear Oct. 1, 2002
6445569 Gas-insulated switchgear Sep. 3, 2002
6399911 Gas insulated switchgear apparatus Jun. 4, 2002
6373687 Gas insulation switch Apr. 16, 2002
6337452 Gas insulated switchgear with flange-spacer assembly Jan. 8, 2002
6292356 Gas insulation switch Sep. 18, 2001
6219225 Gas insulated switch gear and method for assembling therefor Apr. 17, 2001
6205018 Air insulated switchgear with operating device for effect circuit breaker Mar. 20, 2001
6188034 Gas insulated switchgear with flange-spacer assembly Feb. 13, 2001
6134100 Gas-insulated switchgear assembly having mounting elements Oct. 17, 2000
6091039 Gas-insulated line with an incorporated power capacitor and circuit breaker Jul. 18, 2000
5991148 Metal-enclosed gas-insulated switchgear assembly Nov. 23, 1999
5796060 Gas insulated switchgear with grounding and disconnecting switches Aug. 18, 1998
5757614 Gas insulated switchgear apparatus May. 26, 1998
5754382 Gas insulated switchgear and power transmission system using the switchgear May. 19, 1998
5638254 Gas insulated switch gear device Jun. 10, 1997
5625530 Gas insulated switchgear equipment including a bypass bus and bypass disconnecting switch Apr. 29, 1997
5589674 Metal-encapsulated, gas-insulated switching installation Dec. 31, 1996
5578804 Metal-enclosed gas-insulated switching installation Nov. 26, 1996

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