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