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Class Information
Number: 238/152
Name: Railways: surface track > Rail joints > Insulated
Description: Insulating means for rail-joints to prevent electric current from passing through the joint from one to the other of the joined rails.

Sub-classes under this class:

Class Number Class Name Patents
238/154 Chair 3
238/159 Splice bars 14
238/153 Transverse abutting 11

Patents under this class:

Patent Number Title Of Patent Date Issued
8580177 Method for manufacturing a resilient rail support block assembly Nov. 12, 2013
8573506 Expansion device for a guide rail Nov. 5, 2013
8490887 Railroad rail having thermal insulation below the railhead either coated in the field or at the rail production facility Jul. 23, 2013
8302878 Method and arrangement to insulate rail ends Nov. 6, 2012
8070073 Composite rail joint end post Dec. 6, 2011
7975933 Method and arrangement to insulate rail ends Jul. 12, 2011
7490781 Rail joint bars and rail joint assemblies Feb. 17, 2009
7261244 Tie plate Aug. 28, 2007
7090143 Rail joint bars and rail joint assemblies Aug. 15, 2006
6305614 Gauge plate and switch rod insulators Oct. 23, 2001
6170756 Gauge plate and switch rod insulators Jan. 9, 2001
5842637 Angled joint for railroad rails Dec. 1, 1998
5503331 Insulated rail joint incorporating spacer-impregnated adhesive and method for bonding insulated rail joints Apr. 2, 1996
4641779 Concrete grade crossing system Feb. 10, 1987
4635846 Insulative protective device for rail fastener Jan. 13, 1987
4386736 Electrically insulated rail joint connection Jun. 7, 1983
4292110 Fabric-reinforced bonding sheet comprising an epoxy resin and dianiline and use thereof to make an insulated rail joint Sep. 29, 1981
4273284 Insulated rail joint Jun. 16, 1981
4256259 Insulated rail joint Mar. 17, 1981
4209130 Adhesive tape for protecting electrically insulated rail joint Jun. 24, 1980

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