Assignee
ELLCON NAT
US22 patents
Top patents by PatentIndex Score
US5507368AApr 16, 1996
Railway car truck mounted brake assembly with multiple piston air cylinder
ELLCON NAT20 citations89
US5263422ANov 23, 1993
Protected gate lock for hopper cars
ELLCON NAT25 citations89
US6913325B2Jul 5, 2005
Electrically operable vehicle parking brake drive
ELLCON NAT25 citations88
US5361876ANov 8, 1994
Truck mounted brake apparatus
ELLCON NAT24 citations85
US7757825B2Jul 20, 2010
Quick release hand brake
ELLCON NAT9 citations83
US7559411B2Jul 14, 2009
Handbrake having input load limiter
ELLCON NAT8 citations83
US8033236B2Oct 11, 2011
Handbrake load indicator
ELLCON NAT9 citations82
US5753987AMay 19, 1998
Generator apparatus coupled to side frame of vehicle and energized by rotation of axle on vehicle
ELLCON NAT19 citations81
US4312428AJan 26, 1982
Truck mounted brake apparatus
ELLCON NAT22 citations78
US4934877AJun 19, 1990
Pneumatic gate for railway hopper cars
ELLCON NAT20 citations72
US4186953AFeb 5, 1980
Closure latch mechanism with closing pressure cam
ELLCON NAT10 citations72
US5269594ADec 14, 1993
Load responsive air brake control valve for providing continuously variable brake pressure
ELLCON NAT11 citations71
US9915358B2Mar 13, 2018
Valve
ELLCON NAT2 citations70
US3960411AJun 1, 1976
Empty-load brake with lading controlled reservoir
ELLCON NAT7 citations70
US5039174AAug 13, 1991
Empty/load braking system for railroad cars and valve therefor
ELLCON NAT9 citations69
US5551766ASep 3, 1996
Empty/load sensor mechanism for controlled vehicle braking
ELLCON NAT17 citations68
US4714142ADec 22, 1987
Railway car hand brake with release governor
ELLCON NAT19 citations68
US6112860ASep 5, 2000
Vehicle brake status indicating apparatus
ELLCON NAT7 citations63
US7878309B2Feb 1, 2011
Quick release hand brake
ELLCON NAT4 citations62
US4428622AJan 31, 1984
Railway vehicle brake system with four-way valve
ELLCON NAT2 citations59
US5192119AMar 9, 1993
Protective cover for emply/load valve actuator
ELLCON NAT2 citations58
US4146256AMar 27, 1979
Closure latch assembly
ELLCON NAT6 citations52