Patents for B61D 7 - Hopper cars (1,208)
01/1981
01/13/1981US4244299 Railway side door hopper car locking mechanism
12/1980
12/30/1980US4241811 Brake mechanism for a gondola car loader
12/02/1980US4236459 Depressed center car
12/02/1980US4236458 Door locking and actuating mechanism for hopper car
11/1980
11/25/1980US4235169 Door locking mechanism for side dump railway hopper cars
11/18/1980CA1089712A1 Integral hopper structure
11/18/1980CA1089711A1 Railway gondola cars
11/11/1980US4232989 Cam actuated railway hopper car door operating mechanism
10/1980
10/30/1980WO1980002266A1 Wagon for incandescent coke
10/28/1980US4230048 Railroad car
10/21/1980US4228742 Railway car integral hopper structure
10/21/1980CA1087923A1 Hopper car door latching arrangement
10/14/1980CA1087456A1 Locking arrangement for hopper car doors
09/1980
09/30/1980US4224879 Railway hopper car door latch
09/30/1980US4224878 Hopper car door locking mechanism
09/30/1980US4224877 Railway hopper car closure actuating mechanism
09/16/1980US4222334 Hopper discharge door operating mechanism
09/16/1980US4222333 Railway hopper car closure actuating mechanism
08/1980
08/19/1980CA1083887A1 Discharge gate for railway hopper car
07/1980
07/29/1980US4214759 Rtv silicone rubber
07/29/1980US4214536 Hopper outlet having vertically movable door bearing
07/29/1980CA1082525A1 Hopper car cam lock door operating mechanism
07/29/1980CA1082524A1 Door operating mechanism for hopper cars
07/22/1980US4213725 Double locking door latch mechanism for railway hopper cars
07/15/1980US4212252 Gondola-type railway car
07/08/1980CA1081048A1 Carriage for transport and spread of ballast and bench material for railroad embankment maintenance
06/1980
06/17/1980US4207822 Hopper car outlet gate assembly
06/10/1980US4207020 Hopper car door latching arrangment
06/10/1980US4206709 Hopper car for liquid unit-train service
06/10/1980US4206571 Bunker closure door operating mechanism
04/1980
04/17/1980WO1980000691A1 Bottom discharge device
04/01/1980CA1074623A1 Locking mechanism for a pair of railroad hopper doors
04/01/1980CA1074622A1 Door actuating mechanism for side dump railway hopper cars
03/1980
03/25/1980US4194450 Railway hopper car door operating mechanism
03/25/1980CA1074369A1 Control valve for bottom discharge outlet
02/1980
02/19/1980CA1071926A1 Hopper door locking and actuating mechanism
01/1980
01/29/1980CA1070564A1 Locking mechanism for hopper car door
01/22/1980US4184432 Hopper car door lock mechanism
01/08/1980CA1069383A1 Trackside door closing arrangement for railway hopper cars
01/01/1980US4181336 Hopper car cam lock door operating mechanism
09/1979
09/25/1979US4168665 Covered hopper car corrugated bolster web construction
09/18/1979CA1062549A1 Rail vehicles
08/1979
08/28/1979US4165820 Aerator control arrangement
08/28/1979CA1061297A2 Aerator control arrangement
08/21/1979CA1060713A1 Stability bracing for twist on high gondolas or hopper cars
08/21/1979CA1060711A1 Locking end actuating mechanism for railway hopper car doors
08/07/1979US4163583 Pneumatic hopper outlet cap latch
08/07/1979US4163424 Hopper door locking and actuating mechanism
07/1979
07/17/1979CA1058449A1 Lock for a hopper car outlet gate
07/17/1979CA1058448A1 Hopper door actuating mechanism
07/10/1979CA1058014A1 Gate operating mechanism for a hopper car
06/1979
06/26/1979US4158996 Locking arrangement for hopper car doors
06/05/1979CA1055785A1 Device for freeing rotation of a discharge control door for particulate material
05/1979
05/08/1979US4153168 Automatic hopper door opener
03/1979
03/06/1979CA1049981A1 Aerator control arrangement
02/1979
02/27/1979US4141299 Dumping railway quench car
02/27/1979CA1049327A1 Dual flow car
02/13/1979US4138948 Railway hopper car side door actuating mechanism
02/06/1979CA1047836A1 Hopper vehicle
01/1979
01/30/1979US4136621 Railway hopper car door locking mechanism
01/16/1979US4134344 Railway hopper car door lock
01/16/1979CA1046347A1 Fabricated hopper outlet door frame
01/16/1979CA1046344A1 Train holding device
10/1978
10/17/1978US4120412 Trackside door closing arrangement for railway hopper cars
10/10/1978US4119041 Locking mechanism for a pair of railroad hopper doors
10/10/1978CA1040008A1 Reversible foot for railway hopper car inclined braces
10/03/1978CA1039578A1 Dual discharge hopper device for bulk cargo vehicles
09/1978
09/26/1978CA1039114A1 Hopper vehicle
09/19/1978US4114785 Control valve for bottom discharge outlet
09/12/1978US4112852 Railway hopper car labyrinth gate seal
07/1978
07/11/1978US4099468 Lock for a hopper car outlet gate
06/1978
06/13/1978US4094254 Lock for railway hopper car gate railway car gate lock
04/1978
04/18/1978US4084515 Locking mechanism for hopper door actuator assembly
04/04/1978US4082045 Stability bracing for twist on high gondolas or hopper cars
02/1978
02/28/1978US4075952 Scissor-type slide gate opener
01/1978
01/17/1978US4068768 Vibrator bracket assembly for hoppers and railway cars
12/1977
12/20/1977US4063657 Vibrator bracket assembly for hoppers and railway cars
12/13/1977US4062460 Gate operating mechanism for a hopper car
10/1977
10/04/1977US4051960 Locking end actuating mechanism for railway hopper car doors
10/04/1977US4051785 Dual discharge hopper device for bulk cargo vehicles
09/1977
09/06/1977US4046268 Hopper door actuating mechanism
08/1977
08/30/1977US4044690 Railway tank hopper car
08/09/1977US4040363 Combination hatch covers
08/02/1977US4039128 Vibrator bracket assembly for hoppers and railway cars
07/1977
07/19/1977US4036149 Fabricated hopper car outlet door frame
04/1977
04/12/1977US4016691 Reversible foot for railway hopper car inclined braces
03/1977
03/15/1977US4011956 Closure mechanism for bottom dump hopper cars
03/01/1977US4009907 Bottom discharge hopper seal
03/01/1977US4009664 Closure actuating device for railway hopper car doors
02/1977
02/08/1977US4006692 Hopper car outlet gate and seal
02/08/1977US4006691 Train holding device
01/1977
01/25/1977US4004475 Portable wrench for rotary members
01/18/1977US4003319 Tubular through sill railway hopper car
12/1976
12/14/1976US3997089 Sealing hopper closure assembly
12/07/1976US3995541 Railway hopper car having baffles decreasing load density
11/1976
11/30/1976US3994238 Railway hopper car with bottom door discharge mechanism
09/1976
09/28/1976US3982641 Hopper car door actuating mechanism
09/07/1976US3978997 Door tripping device for railway hopper car
06/1976
06/29/1976US3965760 Operating apparatus for sliding closures for railway car
05/1976
05/25/1976US3958514 Automatic hopper gate locking mechanism
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