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Class Information
Number: 174/8
Name: Electricity: conductors and insulators > With fluids or vacuum
Description: Structures in which a vacuum or fluid is employed or having means peculiarly adapted for use in connection with a vacuum or with material in a fluid condition.










Sub-classes under this class:

Class Number Class Name Patents
174/17R Boxes and housings 128
174/19 Conduit or cable end structure 90
174/21R Conduit or cable joints 75
174/24 Conduits, cables and conductors 71
174/9R Current conductive fluid and/or vacuum 4
174/30 Insulators 14
174/10 With cable or conduit preinstallation devices 42
174/15.1 With cooling or fluid feeding, circulating or distributing 575
174/12R With expansion and contraction means 26
174/14R With fluid maintenance or conditioning means 88
174/23R With fluid stops 131
174/11R With fluid-condition responsive and/or indicating means 117


Patents under this class:

Patent Number Title Of Patent Date Issued
7928329 Tap changer Apr. 19, 2011
7164142 Electrical feed-through structure and method Jan. 16, 2007
7017266 Locator wire terminator Mar. 28, 2006
6914195 Distribution transformer Jul. 5, 2005
6566887 Method and device for detecting and locating insulation/isolation defects between conductors May. 20, 2003
6225553 Fluid cooled cable bend restrictor May. 1, 2001
4707200 Wrap for filling cavities, particularly in cable fittings, with insulating compound and a method for filling the cavities Nov. 17, 1987
4476001 Device for collecting alkaline cell liquor from an electrolytic cell Oct. 9, 1984
4361230 Assembly of tubular sleeve markers Nov. 30, 1982
4097680 Spinning disk electrical isolator for a flowing seawater stream Jun. 27, 1978
4068489 Method and apparatus for laying an oil filled cable at depths below the laying equipment Jan. 17, 1978











 
 
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